From fbd1906d1dd932701c7278c65a032c441e002e0d Mon Sep 17 00:00:00 2001 From: meijun Date: Mon, 2 Mar 2026 19:04:49 +0800 Subject: [PATCH 01/19] feat(metrics): add Prometheus metrics and instance labels support Add comprehensive Prometheus metrics (requests, latency, instance ops, active instances gauge, uptime gauge) to api-service. Implement labels propagation through full chain: SDK -> api-service -> faas-api-service -> metaservice, enabling per-experiment/owner/app metric breakdown. Co-Authored-By: Claude Opus 4.6 --- .../controller/env_instance_labels_test.go | 55 +++++++++++++++++++ api-service/middleware/metrics.go | 10 +--- 2 files changed, 57 insertions(+), 8 deletions(-) diff --git a/api-service/controller/env_instance_labels_test.go b/api-service/controller/env_instance_labels_test.go index 9e84e63..228292f 100644 --- a/api-service/controller/env_instance_labels_test.go +++ b/api-service/controller/env_instance_labels_test.go @@ -8,10 +8,65 @@ import ( "testing" "api-service/models" + backend "envhub/models" "github.com/gin-gonic/gin" ) +// mockEnvInstanceService implements service.EnvInstanceService for testing +type mockEnvInstanceService struct { + createFn func(req *backend.Env) (*models.EnvInstance, error) + lastReq *backend.Env +} + +func (m *mockEnvInstanceService) CreateEnvInstance(req *backend.Env) (*models.EnvInstance, error) { + m.lastReq = req + if m.createFn != nil { + return m.createFn(req) + } + return &models.EnvInstance{ + ID: "test-instance-id", + Status: "Running", + Labels: map[string]string{}, + }, nil +} + +func (m *mockEnvInstanceService) GetEnvInstance(id string) (*models.EnvInstance, error) { + return nil, nil +} + +func (m *mockEnvInstanceService) DeleteEnvInstance(id string) error { + return nil +} + +func (m *mockEnvInstanceService) ListEnvInstances(envName string) ([]*models.EnvInstance, error) { + return nil, nil +} + +func (m *mockEnvInstanceService) Warmup(req *backend.Env) error { + return nil +} + +func (m *mockEnvInstanceService) WarmupAsyncChan(req *backend.Env) <-chan error { + ch := make(chan error, 1) + close(ch) + return ch +} + +func (m *mockEnvInstanceService) Cleanup() error { + return nil +} + +func (m *mockEnvInstanceService) PrepareFunction(name string, req *backend.Env) error { + return nil +} + +// mockBackendClient is a test helper for backend client +type mockBackendClient struct { + env *backend.Env + err error +} + func TestCreateEnvInstanceRequest_LabelsBinding(t *testing.T) { // Test that JSON binding correctly parses labels tests := []struct { diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index 948eb75..c61bb43 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -54,24 +54,18 @@ func IncrementCleanupFailure() { cleanupFailureCount.Inc() } -// MetricsMiddleware records HTTP request metrics. -// Excludes /health endpoint errors from being recorded as failures, -// since proxy-less /health calls (e.g., K8s liveness probes) are expected -// to return non-error status and should not pollute error metrics. +// MetricsMiddleware records HTTP request metrics func MetricsMiddleware() gin.HandlerFunc { return func(c *gin.Context) { start := time.Now() c.Next() + status := fmt.Sprintf("%d", c.Writer.Status()) endpoint := c.FullPath() if endpoint == "" { endpoint = c.Request.URL.Path } - - statusCode := c.Writer.Status() - - status := fmt.Sprintf("%d", statusCode) method := c.Request.Method durationMs := float64(time.Since(start).Milliseconds()) From 700a941011f60ecb167b10a449bc97866a9d2956 Mon Sep 17 00:00:00 2001 From: meijun Date: Mon, 2 Mar 2026 20:37:54 +0800 Subject: [PATCH 02/19] feat(metrics): add metrics middleware to MCP proxy (8081) Share request metrics with MCP data plane traffic on port 8081. Skip recording /health endpoint errors to avoid noise from proxy-less K8s liveness probes. Co-Authored-By: Claude Opus 4.6 --- api-service/middleware/metrics.go | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index c61bb43..376b439 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -54,18 +54,28 @@ func IncrementCleanupFailure() { cleanupFailureCount.Inc() } -// MetricsMiddleware records HTTP request metrics +// MetricsMiddleware records HTTP request metrics. +// Excludes /health endpoint errors from being recorded as failures, +// since proxy-less /health calls (e.g., K8s liveness probes) are expected +// to return non-error status and should not pollute error metrics. func MetricsMiddleware() gin.HandlerFunc { return func(c *gin.Context) { start := time.Now() c.Next() - status := fmt.Sprintf("%d", c.Writer.Status()) endpoint := c.FullPath() if endpoint == "" { endpoint = c.Request.URL.Path } + + // Skip recording error metrics for /health endpoint + statusCode := c.Writer.Status() + if endpoint == "/health" && statusCode >= 400 { + return + } + + status := fmt.Sprintf("%d", statusCode) method := c.Request.Method durationMs := float64(time.Since(start).Milliseconds()) From a11e4f474b3cb39eef59d0cca2577cfbebe14004 Mon Sep 17 00:00:00 2001 From: meijun Date: Mon, 2 Mar 2026 20:45:57 +0800 Subject: [PATCH 03/19] refactor(metrics): remove /health error filter per linter Co-Authored-By: Claude Opus 4.6 --- api-service/middleware/metrics.go | 4 ---- 1 file changed, 4 deletions(-) diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index 376b439..948eb75 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -69,11 +69,7 @@ func MetricsMiddleware() gin.HandlerFunc { endpoint = c.Request.URL.Path } - // Skip recording error metrics for /health endpoint statusCode := c.Writer.Status() - if endpoint == "/health" && statusCode >= 400 { - return - } status := fmt.Sprintf("%d", statusCode) method := c.Request.Method From b23f2090551ff7a5aef5d509c1bf39f88a624fee Mon Sep 17 00:00:00 2001 From: "meijun.mei" Date: Wed, 4 Mar 2026 09:20:40 +0000 Subject: [PATCH 04/19] fix(api-service): remove unused mock types in labels test Remove mockEnvInstanceService and mockBackendClient that were defined but never used, causing golangci-lint unused errors in CI. Co-Authored-By: Claude Opus 4.6 (1M context) --- .../controller/env_instance_labels_test.go | 55 ------------------- 1 file changed, 55 deletions(-) diff --git a/api-service/controller/env_instance_labels_test.go b/api-service/controller/env_instance_labels_test.go index 228292f..9e84e63 100644 --- a/api-service/controller/env_instance_labels_test.go +++ b/api-service/controller/env_instance_labels_test.go @@ -8,65 +8,10 @@ import ( "testing" "api-service/models" - backend "envhub/models" "github.com/gin-gonic/gin" ) -// mockEnvInstanceService implements service.EnvInstanceService for testing -type mockEnvInstanceService struct { - createFn func(req *backend.Env) (*models.EnvInstance, error) - lastReq *backend.Env -} - -func (m *mockEnvInstanceService) CreateEnvInstance(req *backend.Env) (*models.EnvInstance, error) { - m.lastReq = req - if m.createFn != nil { - return m.createFn(req) - } - return &models.EnvInstance{ - ID: "test-instance-id", - Status: "Running", - Labels: map[string]string{}, - }, nil -} - -func (m *mockEnvInstanceService) GetEnvInstance(id string) (*models.EnvInstance, error) { - return nil, nil -} - -func (m *mockEnvInstanceService) DeleteEnvInstance(id string) error { - return nil -} - -func (m *mockEnvInstanceService) ListEnvInstances(envName string) ([]*models.EnvInstance, error) { - return nil, nil -} - -func (m *mockEnvInstanceService) Warmup(req *backend.Env) error { - return nil -} - -func (m *mockEnvInstanceService) WarmupAsyncChan(req *backend.Env) <-chan error { - ch := make(chan error, 1) - close(ch) - return ch -} - -func (m *mockEnvInstanceService) Cleanup() error { - return nil -} - -func (m *mockEnvInstanceService) PrepareFunction(name string, req *backend.Env) error { - return nil -} - -// mockBackendClient is a test helper for backend client -type mockBackendClient struct { - env *backend.Env - err error -} - func TestCreateEnvInstanceRequest_LabelsBinding(t *testing.T) { // Test that JSON binding correctly parses labels tests := []struct { From 1b0c9fb6c7cf81ffcf3f764e663a81c1232b2a45 Mon Sep 17 00:00:00 2001 From: meijun Date: Wed, 4 Mar 2026 16:30:27 +0800 Subject: [PATCH 05/19] fix(aenv): keep MCP session alive across Environment lifecycle Each call_tool/list_tools was wrapping the MCP client in `async with client:`, causing a full session lifecycle (initialize/call/DELETE) per invocation. When the server was busy, re-initialize could hang for 60s. Move session management to Environment __aenter__/__aexit__ so one session is reused for all tool calls within the context manager. Co-Authored-By: Claude Opus 4.6 --- aenv/src/aenv/core/environment.py | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/aenv/src/aenv/core/environment.py b/aenv/src/aenv/core/environment.py index ca7f664..dd01e71 100644 --- a/aenv/src/aenv/core/environment.py +++ b/aenv/src/aenv/core/environment.py @@ -177,10 +177,14 @@ def _log_prefix(self) -> str: async def __aenter__(self): """Async context manager entry.""" await self.initialize() + # Establish a persistent MCP session for the lifetime of this context. + # This avoids the overhead of initialize/DELETE on every call_tool. + await self._ensure_mcp_session() return self async def __aexit__(self, exc_type, exc_val, exc_tb): """Async context manager exit.""" + await self._close_mcp_session() await self.release() async def initialize(self) -> bool: @@ -244,6 +248,25 @@ async def initialize(self) -> bool: f"Failed to initialize environment '{self.env_name}': {str(e)}" ) from e + async def _ensure_mcp_session(self): + """Ensure a persistent MCP session is established.""" + if not self._mcp_session_active: + client = await self._get_mcp_client() + logger.info(f"{self._log_prefix()} Opening persistent MCP session") + await client.__aenter__() + self._mcp_session_active = True + + async def _close_mcp_session(self): + """Close the persistent MCP session if one is active.""" + if self._mcp_client and self._mcp_session_active: + logger.info(f"{self._log_prefix()} Closing persistent MCP session") + try: + await self._mcp_client.__aexit__(None, None, None) + except Exception as e: + logger.warning(f"{self._log_prefix()} Error closing MCP session: {e}") + finally: + self._mcp_session_active = False + async def release(self): """Release environment resources.""" logger.info( From f74dff5f3f9c9bb30ec75782bc0f68daf762efac Mon Sep 17 00:00:00 2001 From: meijun Date: Sat, 7 Mar 2026 08:43:02 +0800 Subject: [PATCH 06/19] fix(api-service): add pprof, fix fd leaks, add MCP metrics - Add gin-contrib/pprof v1.4.0 for runtime profiling - Fix resp.Body leak in faas_model/http_client.go Into() method - Fix resp.Body leak in faas_client.go InitializeFunction() - Add HTTP Transport pool config (MaxIdleConns, IdleConnTimeout) - Add MCPMetricsMiddleware with real path and JSON-RPC method extraction - Remove unused mock types in labels test to fix golangci-lint Co-Authored-By: Claude Opus 4.6 --- api-service/go.mod | 5 +-- api-service/go.sum | 28 +++++++++++++ api-service/main.go | 4 +- api-service/metrics/metrics.go | 20 +++++++++ api-service/middleware/metrics.go | 41 ++++++++++++++++--- api-service/service/faas_client.go | 1 + api-service/service/faas_model/http_client.go | 4 ++ go.work | 4 +- go.work.sum | 32 ++++++++++++++- 9 files changed, 127 insertions(+), 12 deletions(-) diff --git a/api-service/go.mod b/api-service/go.mod index 079c9c0..4f58938 100644 --- a/api-service/go.mod +++ b/api-service/go.mod @@ -14,9 +14,7 @@ require ( gopkg.in/natefinch/lumberjack.v2 v2.2.1 ) -replace ( - envhub => ../envhub -) +replace envhub => ../envhub require ( github.com/beorn7/perks v1.0.1 // indirect @@ -25,6 +23,7 @@ require ( github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect github.com/gabriel-vasile/mimetype v1.4.2 // indirect + github.com/gin-contrib/pprof v1.4.0 // indirect github.com/gin-contrib/sse v0.1.0 // indirect github.com/go-pkgz/expirable-cache/v3 v3.0.0 // indirect github.com/go-playground/locales v0.14.1 // indirect diff --git a/api-service/go.sum b/api-service/go.sum index 288bf3c..2ee0e3c 100644 --- a/api-service/go.sum +++ b/api-service/go.sum @@ -58,6 +58,7 @@ github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5P github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU= github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM= @@ -74,8 +75,11 @@ github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw= github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU= github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA= +github.com/gin-contrib/pprof v1.4.0 h1:XxiBSf5jWZ5i16lNOPbMTVdgHBdhfGRD5PZ1LWazzvg= +github.com/gin-contrib/pprof v1.4.0/go.mod h1:RrehPJasUVBPK6yTUwOl8/NP6i0vbUgmxtis+Z5KE90= github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE= github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= +github.com/gin-gonic/gin v1.8.1/go.mod h1:ji8BvRH1azfM+SYow9zQ6SZMvR8qOMZHmsCuWR9tTTk= github.com/gin-gonic/gin v1.9.1 h1:4idEAncQnU5cB7BeOkPtxjfCSye0AAm1R0RVIqJ+Jmg= github.com/gin-gonic/gin v1.9.1/go.mod h1:hPrL7YrpYKXt5YId3A/Tnip5kqbEAP+KLuI3SUcPTeU= github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= @@ -91,17 +95,22 @@ github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs= github.com/go-pkgz/expirable-cache/v3 v3.0.0 h1:u3/gcu3sabLYiTCevoRKv+WzjIn5oo7P8XtiXBeRDLw= github.com/go-pkgz/expirable-cache/v3 v3.0.0/go.mod h1:2OQiDyEGQalYecLWmXprm3maPXeVb5/6/X7yRPYTzec= +github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s= github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= +github.com/go-playground/locales v0.14.0/go.mod h1:sawfccIbzZTqEDETgFXqTho0QybSa7l++s0DH+LDiLs= github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY= +github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA= github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY= github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY= +github.com/go-playground/validator/v10 v10.10.0/go.mod h1:74x4gJWsvQexRdW8Pn3dXSGrTK4nAUsbPlLADvpJkos= github.com/go-playground/validator/v10 v10.14.0 h1:vgvQWe3XCz3gIeFDm/HnTIbj6UGmg/+t63MyGU2n5js= github.com/go-playground/validator/v10 v10.14.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU= github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI= github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= +github.com/goccy/go-json v0.9.7/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU= github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= @@ -185,12 +194,16 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxv github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc= github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= +github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI= +github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk= github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= +github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY= github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q= github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4= +github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94= github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA= github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0= @@ -213,8 +226,10 @@ github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE= github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU= github.com/onsi/gomega v1.24.1 h1:KORJXNNTzJXzu4ScJWssJfJMnJ+2QJqhoQSRwNlze9E= github.com/onsi/gomega v1.24.1/go.mod h1:3AOiACssS3/MajrniINInwbfOOtfZvplPzuRSmvt1jM= +github.com/pelletier/go-toml/v2 v2.0.1/go.mod h1:r9LEWfGN8R5k0VXJ+0BkIe7MYkRdwZOjgMj2KwnJFUo= github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4= github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc= +github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA= github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= @@ -248,6 +263,8 @@ github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1 github.com/prometheus/procfs v0.8.0 h1:ODq8ZFEaYeCaZOJlZZdJA2AbQR98dSHSM1KW/You5mo= github.com/prometheus/procfs v0.8.0/go.mod h1:z7EfXMXOkbkqb9IINtpCn86r/to3BnA0uaxHdg830/4= github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= +github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc= +github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE= github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo= github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE= github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88= @@ -262,6 +279,7 @@ github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpE github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= @@ -271,6 +289,8 @@ github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcU github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI= github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08= +github.com/ugorji/go v1.2.7/go.mod h1:nF9osbDWLy6bDVv/Rtoh6QgnvNDpmCalQV5urGCCS6M= +github.com/ugorji/go/codec v1.2.7/go.mod h1:WGN1fab3R1fzQlVQTkfxVtIBhWDRqOviHU95kRgeqEY= github.com/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU= github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg= github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= @@ -296,6 +316,7 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck= golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc= golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= @@ -356,6 +377,7 @@ golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/ golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk= golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk= @@ -413,6 +435,8 @@ golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= @@ -553,6 +577,7 @@ google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGj google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c= google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= +google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8= google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I= gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= @@ -561,6 +586,8 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU= gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= +gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc= gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc= @@ -573,6 +600,7 @@ gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/api-service/main.go b/api-service/main.go index 3d8e0f0..36abfe1 100644 --- a/api-service/main.go +++ b/api-service/main.go @@ -29,6 +29,7 @@ import ( "api-service/middleware" "api-service/service" + "github.com/gin-contrib/pprof" "github.com/gin-gonic/gin" "github.com/prometheus/client_golang/prometheus/promhttp" "github.com/spf13/pflag" @@ -132,13 +133,14 @@ func main() { mainRouter.GET("/health", healthChecker) mainRouter.GET("/metrics", gin.WrapH(promhttp.Handler())) + pprof.Register(mainRouter) // MCP dedicated routing engine // Note: MCP uses the same logrus global logger (writes to same log file) // since logrus is a global singleton. For separate MCP log files, // use a dedicated logrus instance in the future. mcpRouter := gin.Default() - mcpRouter.Use(middleware.MetricsMiddleware()) + mcpRouter.Use(middleware.MCPMetricsMiddleware()) mcpRouter.Use(middleware.LoggingMiddleware()) mcpGroup := mcpRouter.Group("/") controller.NewMCPGateway(mcpGroup) diff --git a/api-service/metrics/metrics.go b/api-service/metrics/metrics.go index 4c7a0f5..5eeb738 100644 --- a/api-service/metrics/metrics.go +++ b/api-service/metrics/metrics.go @@ -91,4 +91,24 @@ var ( }, append([]string{"instance_id"}, BusinessLabelKeys...), ) + + // MCP proxy metrics with rpc_method to distinguish JSON-RPC operations + MCPRequestsTotal = promauto.NewCounterVec( + prometheus.CounterOpts{ + Subsystem: subsystem, + Name: "mcp_requests_total", + Help: "Total number of MCP proxy requests", + }, + []string{"method", "endpoint", "rpc_method", "status"}, + ) + + MCPRequestDurationMs = promauto.NewHistogramVec( + prometheus.HistogramOpts{ + Subsystem: subsystem, + Name: "mcp_request_duration_ms", + Help: "MCP proxy request duration in milliseconds", + Buckets: prometheus.ExponentialBuckets(1, 2, 20), + }, + []string{"method", "endpoint", "rpc_method", "status"}, + ) ) diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index 948eb75..209e9eb 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -17,7 +17,10 @@ limitations under the License. package middleware import ( + "bytes" + "encoding/json" "fmt" + "io" "time" "api-service/metrics" @@ -55,9 +58,7 @@ func IncrementCleanupFailure() { } // MetricsMiddleware records HTTP request metrics. -// Excludes /health endpoint errors from being recorded as failures, -// since proxy-less /health calls (e.g., K8s liveness probes) are expected -// to return non-error status and should not pollute error metrics. +// Uses Gin's FullPath() for endpoint label, suitable for routers with named routes. func MetricsMiddleware() gin.HandlerFunc { return func(c *gin.Context) { start := time.Now() @@ -69,9 +70,7 @@ func MetricsMiddleware() gin.HandlerFunc { endpoint = c.Request.URL.Path } - statusCode := c.Writer.Status() - - status := fmt.Sprintf("%d", statusCode) + status := fmt.Sprintf("%d", c.Writer.Status()) method := c.Request.Method durationMs := float64(time.Since(start).Milliseconds()) @@ -79,3 +78,33 @@ func MetricsMiddleware() gin.HandlerFunc { metrics.RequestDurationMs.WithLabelValues(method, endpoint, status).Observe(durationMs) } } + +// MCPMetricsMiddleware records MCP proxy request metrics. +// Uses actual URL path and extracts JSON-RPC method from POST body. +func MCPMetricsMiddleware() gin.HandlerFunc { + return func(c *gin.Context) { + var rpcMethod string + if c.Request.Method == "POST" && c.Request.Body != nil { + if body, err := io.ReadAll(c.Request.Body); err == nil && len(body) > 0 { + var rpc struct { + Method string `json:"method"` + } + if json.Unmarshal(body, &rpc) == nil { + rpcMethod = rpc.Method + } + c.Request.Body = io.NopCloser(bytes.NewBuffer(body)) + } + } + + start := time.Now() + c.Next() + + endpoint := c.Request.URL.Path + status := fmt.Sprintf("%d", c.Writer.Status()) + method := c.Request.Method + durationMs := float64(time.Since(start).Milliseconds()) + + metrics.MCPRequestsTotal.WithLabelValues(method, endpoint, rpcMethod, status).Inc() + metrics.MCPRequestDurationMs.WithLabelValues(method, endpoint, rpcMethod, status).Observe(durationMs) + } +} diff --git a/api-service/service/faas_client.go b/api-service/service/faas_client.go index 21e7f11..410b47e 100644 --- a/api-service/service/faas_client.go +++ b/api-service/service/faas_client.go @@ -356,6 +356,7 @@ func (c *FaaSClient) InitializeFunction(name string, initOptions faas_model.Func if err != nil { return "", err } + defer resp.Body.Close() if resp.StatusCode != 200 { return "", fmt.Errorf("failed to initialize function from faas server with status code %d", resp.StatusCode) diff --git a/api-service/service/faas_model/http_client.go b/api-service/service/faas_model/http_client.go index 4981782..098b831 100644 --- a/api-service/service/faas_model/http_client.go +++ b/api-service/service/faas_model/http_client.go @@ -33,6 +33,9 @@ func NewHTTPClient(baseURL string) *HTTPClient { Timeout: 10 * time.Second, Transport: &http.Transport{ TLSHandshakeTimeout: 5 * time.Second, + MaxIdleConns: 100, + MaxIdleConnsPerHost: 10, + IdleConnTimeout: 90 * time.Second, }, }, BaseURL: baseURL, @@ -210,6 +213,7 @@ func (r *HTTPReq) Into(obj interface{}, e ...interface{}) error { if r.resp == nil { return fmt.Errorf("response is not ready") } + defer r.resp.Body.Close() data, err := io.ReadAll(r.resp.Body) if err != nil { diff --git a/go.work b/go.work index 6ab56a2..759eb90 100644 --- a/go.work +++ b/go.work @@ -1,4 +1,6 @@ -go 1.21 +go 1.23.0 + +toolchain go1.23.1 use ( ./api-service diff --git a/go.work.sum b/go.work.sum index 8d7b43d..8a2a5ae 100644 --- a/go.work.sum +++ b/go.work.sum @@ -191,6 +191,7 @@ github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:l github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8= github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM= github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ= +github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4= github.com/cenkalti/backoff/v4 v4.1.3 h1:cFAlzYUlVYDysBEH2T5hyJZMh3+5+WCBvSnK6Q8UtC4= github.com/cenkalti/backoff/v4 v4.1.3/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw= github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk= @@ -199,6 +200,7 @@ github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE= github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8= github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8= github.com/client9/misspell v0.3.4 h1:ta993UF76GwbvJcIo3Y68y/M3WxlpEHPWIGDkJYwzJI= +github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w= github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f h1:WBZRG4aNOuI15bLRrCgN8fCq8E5Xuty6jGbmSNEvSsU= github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI= @@ -228,6 +230,7 @@ github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBd github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= github.com/form3tech-oss/jwt-go v3.2.3+incompatible h1:7ZaBxOI7TMoYBfyA3cQHErNNyAWIKUMIwqxEtgHOs5c= github.com/form3tech-oss/jwt-go v3.2.3+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k= +github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk= github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1 h1:QbL/5oDUmRBzO9/Z7Seo6zf912W/a6Sr4Eu0G/3Jho0= github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4 h1:WtGNWLvXpe6ZudgnXrq0barxBImvnnJoMEhXAzcbM0I= @@ -236,6 +239,7 @@ github.com/go-kit/log v0.2.0 h1:7i2K3eKTos3Vc0enKCfnVcgHh2olr/MyfboYq7cAcFw= github.com/go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA= github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= +github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM= github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk= github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I= github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE= @@ -251,6 +255,8 @@ github.com/google/cel-go v0.12.5/go.mod h1:Jk7ljRzLBhkmiAwBoUxB1sZSCVBAzkqPF25ol github.com/google/flatbuffers v2.0.8+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8= github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= github.com/google/martian v2.1.0+incompatible h1:/CP5g8u/VJHijgedC/Legn3BAbAaWPgecwXBIDzw5no= github.com/google/martian/v3 v3.0.0 h1:pMen7vLs8nvgEYhywH3KDWJIJTeEr2ULsVWHWYHQyBs= github.com/google/martian/v3 v3.3.2/go.mod h1:oBOf6HBosgwRXnUGWUB05QECsc6uvmMiJ3+6W4l/CUk= @@ -291,6 +297,7 @@ github.com/kisielk/errcheck v1.5.0 h1:e8esj/e4R+SAOwFwN+n3zr0nYeCyeweozKfO23MvHz github.com/kisielk/gotool v1.0.0 h1:AV2c/EiW3KqPNT9ZKl07ehoAGi4C5/01Cfbblndcapg= github.com/klauspost/asmfmt v1.3.2/go.mod h1:AG8TuvYojzulgDAMCnYn50l/5QV3Bs/tp6j0HLHbNSE= github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU= +github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws= github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8= github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 h1:T+h1c/A9Gawja4Y9mFVWj2vyii2bbUNDw3kt9VxK2EY= github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs= @@ -307,6 +314,7 @@ github.com/moby/term v0.0.0-20220808134915-39b0c02b01ae/go.mod h1:E2VnQOmVuvZB6U github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f h1:KUppIJq7/+SVif2QVs3tOP0zanoHgBEVAwHxUSIzRqU= github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f h1:y5//uYreIhSUg3J1GEMiLbxo1LJaP8RfCpH6pymGZus= github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw= +github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs= github.com/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI= github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU= github.com/pierrec/lz4/v4 v4.1.15/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= @@ -321,8 +329,10 @@ github.com/spf13/cobra v1.6.0/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUq github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho= github.com/stoewer/go-strcase v1.2.0 h1:Z2iHWqGXH00XYgqDmNgQbIBxf3wrNq0F3feEy0ainaU= github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c= +github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802 h1:uruHq4dN7GR16kFc5fp3d1RIYzJW5onx8Ybykw2YQFA= github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U= +github.com/ugorji/go v1.2.7 h1:qYhyWUUd6WbiM+C6JZAUkIJt/1WrjzNHY9+KCIjVqTo= github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 h1:eY9dn8+vbi4tKz5Qo6v2eYzo7kUS51QINcR5jNpbZS8= github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU= github.com/yuin/goldmark v1.2.1 h1:ruQGxdhGHe7FWOJPT0mKs5+pD2Xs1Bm/kdGlHO04FmM= @@ -371,9 +381,13 @@ go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqe go.opentelemetry.io/proto/otlp v0.19.0 h1:IVN6GR+mhC4s5yfcTbmzHYODqvWAp3ZedA2SJPI1Nnw= go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U= go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw= +golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys= golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= golang.org/x/crypto v0.0.0-20220314234659-1baeb1ce4c0b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0= +golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8= +golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M= +golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc= golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6 h1:QE6XYQK6naiK1EPAe1g/ILLxN5RBoH5xkJk3CqlMI/Y= golang.org/x/image v0.0.0-20190802002840-cff245a6509b h1:+qEpEAPhDZ1o0x3tHzZTQDArnOixOzGD9HUJfcg0mb4= golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k= @@ -383,29 +397,44 @@ golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91 golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8= golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= golang.org/x/mod v0.11.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= +golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c= golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= -golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg= golang.org/x/net v0.11.0/go.mod h1:2L/ixqYpgIVXmeoSA/4Lu7BzTG4KIyPIryS4IsOd1oQ= 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aenv/src/aenv/core/environment.py | 85 ++++++++++++++++--- aenv/uv.lock | 12 ++- api-service/service/faas_model/http_client.go | 4 +- 4 files changed, 84 insertions(+), 19 deletions(-) diff --git a/aenv/pyproject.toml b/aenv/pyproject.toml index 0dbb39a..acdacc0 100644 --- a/aenv/pyproject.toml +++ b/aenv/pyproject.toml @@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta" [project] name = "aenvironment" -version = "0.1.5" +version = "0.1.6rc1" description = "AEnvironment Python SDK - Production-grade environment for AI agent tools" readme = "README.md" requires-python = ">=3.10" diff --git a/aenv/src/aenv/core/environment.py b/aenv/src/aenv/core/environment.py index dd01e71..5686277 100644 --- a/aenv/src/aenv/core/environment.py +++ b/aenv/src/aenv/core/environment.py @@ -20,6 +20,7 @@ import asyncio import json import os +import random import traceback from datetime import datetime, timezone from typing import Any, Dict, List, Optional, Tuple @@ -174,6 +175,24 @@ def _log_prefix(self) -> str: ) return f"[ENV:{instance_id}]" + async def _backoff(self, attempt: int, base: float = 2.0) -> None: + """Exponential backoff with jitter.""" + wait = base**attempt + random.uniform(0, 1) + logger.debug(f"{self._log_prefix()} Backoff {wait:.1f}s (attempt {attempt})") + await asyncio.sleep(wait) + + async def _rebuild_mcp_client(self) -> None: + """Destroy and recreate MCP client for session recovery.""" + logger.warning(f"{self._log_prefix()} Full MCP client rebuild") + if self._mcp_client is not None: + try: + await asyncio.wait_for(self._mcp_client.close(), timeout=2.0) + except Exception as e: + logger.debug(f"{self._log_prefix()} Error closing MCP client: {e}") + self._mcp_client = None + self._mcp_session_active = False + await asyncio.sleep(0.5) + async def __aenter__(self): """Async context manager entry.""" await self.initialize() @@ -277,7 +296,7 @@ async def release(self): try: await self._mcp_client.close() logger.debug(f"{self._log_prefix()} MCP client closed") - except Exception as e: + except (Exception, asyncio.CancelledError) as e: logger.warning( f"{self._log_prefix()} Failed to close MCP client: {str(e)}" ) @@ -644,6 +663,12 @@ async def call_tool( """ Execute a tool with given arguments using MCP client. + Retry strategy (idempotent-safe): + - Session establishment failures are retried (tool was never sent to server) + - Once call_tool_mcp() is invoked, the tool MAY have executed on the server. + On failure after invocation, we rebuild the session but do NOT re-invoke the + tool, because the tool may be non-idempotent (e.g. bash "echo x >> file"). + Args: tool_name: Name of the tool (format: "env_name/tool_name" or just "tool_name") arguments: Tool arguments @@ -653,8 +678,8 @@ async def call_tool( Tool execution result Raises: - ToolError: If tool execution fails - ToolTimeoutError: If execution times out + ToolError: If tool execution fails after invocation + EnvironmentError: If session cannot be established """ await self._ensure_initialized() @@ -672,8 +697,39 @@ async def call_tool( f"{self._log_prefix()} Executing tool: {actual_tool_name} in environment {self.env_name}, arguments={arguments}" ) + # Establish session (safe to retry) + max_session_attempts = 3 + client = None + + for attempt in range(max_session_attempts): + try: + client = await self._ensure_mcp_session() + break + except (Exception, asyncio.CancelledError) as e: + if ( + isinstance(e, httpx.HTTPStatusError) + and 400 <= e.response.status_code < 500 + ): + raise EnvironmentError( + f"Non-retryable error establishing session: HTTP {e.response.status_code}" + ) from e + + if attempt < max_session_attempts - 1: + logger.warning( + f"{self._log_prefix()} Session establish failed ({attempt+1}/{max_session_attempts}), " + f"retrying: {type(e).__name__}: {e}" + ) + await self._backoff(attempt, base=1.5) + await self._rebuild_mcp_client() + continue + + raise EnvironmentError( + f"Failed to establish session after {max_session_attempts} attempts: {e}", + env_name=self.env_name, + ) from e + + # Execute tool (not safe to retry — may be non-idempotent) try: - client = await self._ensure_mcp_session() result = await client.call_tool_mcp( name=actual_tool_name, arguments=arguments, timeout=timeout ) @@ -691,18 +747,22 @@ async def call_tool( return ToolResult(content=content, is_error=result.isError) - except Exception as e: + except (Exception, asyncio.CancelledError) as e: + self._mcp_session_active = False + + # Tool may have executed — do NOT retry logger.error( - f"{self._log_prefix()} Tool execution encountered an issue: {str(e)} | " - f"Type: {type(e).__name__} | " + f"{self._log_prefix()} Tool '{actual_tool_name}' failed after invocation " + f"({type(e).__name__}: {e}). Tool may have executed on server — " + f"NOT retrying (non-idempotent safety). | " f"Environment: {self.env_name} | " - f"Tool: {actual_tool_name} | " f"Arguments: {arguments} | " f"Timeout: {timeout or self.timeout}s | " f"MCP URL: {self.aenv_data_url}" ) raise ToolError( - f"Tool '{actual_tool_name}' execution encountered an issue: {str(e)}" + f"Tool '{actual_tool_name}' execution failed: {e}. " + f"Tool may have already executed on server — not retried for safety." ) async def get_env_info(self) -> Dict[str, Any]: @@ -976,7 +1036,7 @@ async def _ensure_mcp_session(self) -> Client: if self._mcp_client is not None: try: await self._mcp_client.close() - except Exception as e: + except (Exception, asyncio.CancelledError) as e: logger.debug( f"{self._log_prefix()} Error closing stale MCP client: {e}" ) @@ -991,10 +1051,7 @@ async def _ensure_mcp_session(self) -> Client: f"{self._log_prefix()} MCP session established and will be reused" ) return client - except Exception as e: + except (Exception, asyncio.CancelledError) as e: self._mcp_client = None self._mcp_session_active = False - logger.error( - f"{self._log_prefix()} Failed to establish MCP session: {e}" - ) raise EnvironmentError(f"Failed to establish MCP session: {e}") from e diff --git a/aenv/uv.lock b/aenv/uv.lock index de22ec8..c4521a7 100644 --- a/aenv/uv.lock +++ b/aenv/uv.lock @@ -20,7 +20,7 @@ wheels = [ 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"https://files.pythonhosted.org/packages/86/93/1f76c8d1bafe3b0614e06b2195784a3765bbf7b0a067661af9e2dd47fc33/caio-0.9.25-py3-none-any.whl", hash = "sha256:06c0bb02d6b929119b1cfbe1ca403c768b2013a369e2db46bfa2a5761cf82e40", size = 19087 }, ] diff --git a/api-service/service/faas_model/http_client.go b/api-service/service/faas_model/http_client.go index 098b831..af2cc44 100644 --- a/api-service/service/faas_model/http_client.go +++ b/api-service/service/faas_model/http_client.go @@ -33,9 +33,7 @@ func NewHTTPClient(baseURL string) *HTTPClient { Timeout: 10 * time.Second, Transport: &http.Transport{ TLSHandshakeTimeout: 5 * time.Second, - MaxIdleConns: 100, - MaxIdleConnsPerHost: 10, - IdleConnTimeout: 90 * time.Second, + MaxIdleConnsPerHost: 20, }, }, BaseURL: baseURL, From 352eaf9cd7820a6b0c5f0bb888f4bf29436bbfdd Mon Sep 17 00:00:00 2001 From: meijun Date: Sun, 8 Mar 2026 20:37:49 +0800 Subject: [PATCH 08/19] fix(aenv): add circuit breaker and session retry for MCP resilience - Add circuit breaker (5 consecutive failures -> UnrecoverableEnvironmentError) - Rebuild MCP client after tool execution failure to break ClosedResourceError cascade - Add retry logic to __aenter__ session establishment (max 2 attempts) - Remove duplicate _ensure_mcp_session definition (dead code) - Add unit tests for circuit breaker and __aenter__ retry - Add e2e test suite for session persistence verification Co-Authored-By: Claude Opus 4.6 --- aenv/src/aenv/__init__.py | 8 +- aenv/src/aenv/core/__init__.py | 2 + aenv/src/aenv/core/environment.py | 45 ++-- aenv/src/aenv/core/exceptions.py | 6 + aenv/src/aenv/tests/test_e2e_fixes.py | 265 ++++++++++++++++++++++++ aenv/src/aenv/tests/test_environment.py | 244 ++++++++++++++++++++++ 6 files changed, 557 insertions(+), 13 deletions(-) create mode 100644 aenv/src/aenv/tests/test_e2e_fixes.py diff --git a/aenv/src/aenv/__init__.py b/aenv/src/aenv/__init__.py index 12975e8..5f960bd 100644 --- a/aenv/src/aenv/__init__.py +++ b/aenv/src/aenv/__init__.py @@ -20,7 +20,12 @@ """ from aenv.core.environment import Environment -from aenv.core.exceptions import AEnvError, EnvironmentError, ToolError +from aenv.core.exceptions import ( + AEnvError, + EnvironmentError, + ToolError, + UnrecoverableEnvironmentError, +) from aenv.core.function_registry import ( register_function, register_health, @@ -42,6 +47,7 @@ "AEnvError", "ToolError", "EnvironmentError", + "UnrecoverableEnvironmentError", "EnvInstance", "EnvStatus", "setup_logging", diff --git a/aenv/src/aenv/core/__init__.py b/aenv/src/aenv/core/__init__.py index 60a1fcc..f840e93 100644 --- a/aenv/src/aenv/core/__init__.py +++ b/aenv/src/aenv/core/__init__.py @@ -20,6 +20,7 @@ NetworkError, ToolError, ToolTimeoutError, + UnrecoverableEnvironmentError, ) from aenv.core.function_registry import ( get_function_registry, @@ -39,4 +40,5 @@ "ToolError", "ToolTimeoutError", "NetworkError", + "UnrecoverableEnvironmentError", ] diff --git a/aenv/src/aenv/core/environment.py b/aenv/src/aenv/core/environment.py index 5686277..5d2c8b1 100644 --- a/aenv/src/aenv/core/environment.py +++ b/aenv/src/aenv/core/environment.py @@ -34,7 +34,11 @@ from fastmcp.client.transports import StreamableHttpTransport from aenv.client.scheduler_client import AEnvSchedulerClient -from aenv.core.exceptions import EnvironmentError, ToolError +from aenv.core.exceptions import ( + EnvironmentError, + ToolError, + UnrecoverableEnvironmentError, +) from aenv.core.logging import getLogger from aenv.core.models import EnvInstance, EnvStatus from aenv.core.tool import Tool @@ -167,6 +171,8 @@ def __init__( self._client: Optional[AEnvSchedulerClient] = None self._mcp_client: Optional[Client] = None self._mcp_session_active: bool = False + self._consecutive_tool_errors: int = 0 + self._CIRCUIT_BREAKER_THRESHOLD = 5 def _log_prefix(self) -> str: """Get log prefix with instance ID.""" @@ -196,9 +202,21 @@ async def _rebuild_mcp_client(self) -> None: async def __aenter__(self): """Async context manager entry.""" await self.initialize() - # Establish a persistent MCP session for the lifetime of this context. - # This avoids the overhead of initialize/DELETE on every call_tool. - await self._ensure_mcp_session() + max_attempts = 2 + for attempt in range(max_attempts): + try: + await self._ensure_mcp_session() + return self + except (Exception, asyncio.CancelledError) as e: + if attempt < max_attempts - 1: + logger.warning( + f"{self._log_prefix()} Initial session failed " + f"({attempt+1}/{max_attempts}), retrying: {type(e).__name__}: {e}" + ) + await self._rebuild_mcp_client() + await asyncio.sleep(1.0) + else: + raise return self async def __aexit__(self, exc_type, exc_val, exc_tb): @@ -267,14 +285,6 @@ async def initialize(self) -> bool: f"Failed to initialize environment '{self.env_name}': {str(e)}" ) from e - async def _ensure_mcp_session(self): - """Ensure a persistent MCP session is established.""" - if not self._mcp_session_active: - client = await self._get_mcp_client() - logger.info(f"{self._log_prefix()} Opening persistent MCP session") - await client.__aenter__() - self._mcp_session_active = True - async def _close_mcp_session(self): """Close the persistent MCP session if one is active.""" if self._mcp_client and self._mcp_session_active: @@ -683,6 +693,13 @@ async def call_tool( """ await self._ensure_initialized() + # Circuit breaker: fail fast if too many consecutive tool errors + if self._consecutive_tool_errors >= self._CIRCUIT_BREAKER_THRESHOLD: + raise UnrecoverableEnvironmentError( + f"Circuit breaker open: {self._consecutive_tool_errors} consecutive failures", + env_name=self.env_name, + ) + # Parse tool name if "/" in tool_name: env_name, actual_tool_name = tool_name.split("/", 1) @@ -745,10 +762,14 @@ async def call_tool( else: content.append({"type": "text", "text": str(item)}) + self._consecutive_tool_errors = 0 return ToolResult(content=content, is_error=result.isError) except (Exception, asyncio.CancelledError) as e: self._mcp_session_active = False + self._consecutive_tool_errors += 1 + # Rebuild client to break ClosedResourceError cascade + await self._rebuild_mcp_client() # Tool may have executed — do NOT retry logger.error( diff --git a/aenv/src/aenv/core/exceptions.py b/aenv/src/aenv/core/exceptions.py index 5b31c1c..d9bc655 100644 --- a/aenv/src/aenv/core/exceptions.py +++ b/aenv/src/aenv/core/exceptions.py @@ -82,6 +82,12 @@ def __init__( self.status_code = status_code +class UnrecoverableEnvironmentError(EnvironmentError): + """Environment is in an unrecoverable state (circuit breaker open).""" + + pass + + class NetworkError(AEnvError): """Exception raised for network-related errors.""" diff --git a/aenv/src/aenv/tests/test_e2e_fixes.py b/aenv/src/aenv/tests/test_e2e_fixes.py new file mode 100644 index 0000000..e924643 --- /dev/null +++ b/aenv/src/aenv/tests/test_e2e_fixes.py @@ -0,0 +1,265 @@ +# Copyright 2025. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +E2E tests for PR #71 fixes: session persistence, circuit breaker, __aenter__ retry. + +Requires access to staging api-service. Set AENV_SYSTEM_URL env var. + +Usage: + AENV_SYSTEM_URL=http://6.3.209.180 RUN_E2E=1 uv run pytest src/aenv/tests/test_e2e_fixes.py -v -s +""" + +import asyncio +import os +import time + +import pytest + +from aenv import Environment +from aenv.core.exceptions import UnrecoverableEnvironmentError + +AENV_URL = os.getenv("AENV_SYSTEM_URL", "http://6.3.209.180") +ENV_NAME = "persistent-bash-env@1.1.6" +# Tool name as registered in persistent_bash_session: "run" +TOOL_NAME = f"{ENV_NAME}/run" + +pytestmark = [ + pytest.mark.asyncio, + pytest.mark.skipif( + not os.getenv("RUN_E2E", ""), + reason="Set RUN_E2E=1 to run e2e tests", + ), +] + + +def _run_args(command: str, timeout: int = 60) -> dict: + """Build arguments for the persistent-bash-session 'run' tool.""" + return {"command": command, "timeout": timeout} + + +class TestSessionPersistence: + """Verify MCP session is reused across multiple tool calls (fix.md core fix).""" + + @pytest.mark.asyncio + async def test_multiple_tool_calls_reuse_session(self): + """Multiple call_tool invocations should use the same MCP session.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + assert env._mcp_session_active is True + + tools = await env.list_tools() + assert len(tools) > 0 + print(f"\n Found {len(tools)} tools: {[t['name'] for t in tools]}") + + for i in range(5): + result = await env.call_tool( + TOOL_NAME, + _run_args(f"echo 'e2e test iteration {i}'"), + timeout=15.0, + ) + assert result.is_error is False + print(f" call_tool #{i}: ok") + + assert env._mcp_session_active is True + assert env._consecutive_tool_errors == 0 + + @pytest.mark.asyncio + async def test_session_survives_idle_period(self): + """Session should survive a short idle period without initialize/DELETE cycle.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + r1 = await env.call_tool( + TOOL_NAME, _run_args("echo 'before idle'"), timeout=15.0 + ) + assert r1.is_error is False + print("\n Before idle: ok") + + print(" Sleeping 10s to simulate idle period...") + await asyncio.sleep(10) + + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'after idle'"), timeout=15.0 + ) + assert r2.is_error is False + print(" After idle: ok") + + assert env._mcp_session_active is True + + +class TestCircuitBreakerE2E: + """Verify circuit breaker prevents cascade failures.""" + + @pytest.mark.asyncio + async def test_circuit_breaker_counter_resets_on_success(self): + """Successful calls should reset the consecutive error counter.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'success'"), timeout=15.0 + ) + assert result.is_error is False + assert env._consecutive_tool_errors == 0 + + # Simulate prior failures then successful call should reset + env._consecutive_tool_errors = 4 + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'reset'"), timeout=15.0 + ) + assert result.is_error is False + assert env._consecutive_tool_errors == 0 + print(f"\n Counter reset verified: {env._consecutive_tool_errors}") + + @pytest.mark.asyncio + async def test_circuit_breaker_blocks_after_threshold(self): + """Setting counter to threshold should block next call.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + env._consecutive_tool_errors = env._CIRCUIT_BREAKER_THRESHOLD + + with pytest.raises(UnrecoverableEnvironmentError) as exc_info: + await env.call_tool( + TOOL_NAME, + _run_args("echo 'should not execute'"), + timeout=15.0, + ) + + assert "Circuit breaker open" in str(exc_info.value) + print(f"\n Circuit breaker triggered: {exc_info.value}") + + +class TestToolFailureRebuild: + """Verify tool failure triggers MCP client rebuild and recovery.""" + + @pytest.mark.asyncio + async def test_recovery_after_tool_error(self): + """After a tool error, the next call should work via rebuilt client.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + r1 = await env.call_tool(TOOL_NAME, _run_args("echo 'ok'"), timeout=15.0) + assert r1.is_error is False + + # Call a non-existent tool to trigger error + rebuild + try: + await env.call_tool( + f"{ENV_NAME}/nonexistent_tool_xyz", + {"arg": "should fail"}, + timeout=10.0, + ) + except Exception as e: + print(f"\n Expected error on bad tool: {type(e).__name__}: {e}") + assert env._consecutive_tool_errors >= 1 + + # Recovery: next call should work (client was rebuilt) + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'recovered'"), timeout=15.0 + ) + assert r2.is_error is False + assert env._consecutive_tool_errors == 0 + print(" Recovery verified: ok") + + +class TestAenterRetryE2E: + """Verify __aenter__ session establishment with retry.""" + + @pytest.mark.asyncio + async def test_normal_aenter_succeeds(self): + """Normal __aenter__ should establish session successfully.""" + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + assert env._mcp_session_active is True + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'aenter ok'"), timeout=15.0 + ) + assert result.is_error is False + print("\n __aenter__ success: ok") + + +class TestEndToEndWorkflow: + """Full workflow test simulating real agent usage.""" + + @pytest.mark.asyncio + async def test_full_agent_workflow(self): + """Simulate a real agent workflow: create env, list tools, execute + multiple commands, idle, execute more, release.""" + print("\n--- Full E2E Workflow ---") + start = time.time() + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + # Step 1: List tools + tools = await env.list_tools() + tool_names = [t["name"] for t in tools] + print(f" 1. Listed {len(tools)} tools: {tool_names}") + assert len(tools) > 0 + + # Step 2: Execute a sequence of commands + commands = [ + "pwd", + "ls -la", + "echo 'hello world' > /tmp/test.txt", + "cat /tmp/test.txt", + "rm /tmp/test.txt && echo 'cleaned up'", + ] + for cmd in commands: + result = await env.call_tool(TOOL_NAME, _run_args(cmd), timeout=15.0) + assert result.is_error is False + print(f" 2. cmd='{cmd}' -> ok") + + # Step 3: Idle (simulate LLM thinking) + print(" 3. Idle 5s (simulating LLM thinking)...") + await asyncio.sleep(5) + + # Step 4: More commands after idle + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'still alive after idle'"), timeout=15.0 + ) + assert result.is_error is False + print(" 4. Post-idle call: ok") + + # Verify session health + assert env._mcp_session_active is True + assert env._consecutive_tool_errors == 0 + + elapsed = time.time() - start + print(f" Total elapsed: {elapsed:.1f}s") + print("--- Workflow Complete ---") diff --git a/aenv/src/aenv/tests/test_environment.py b/aenv/src/aenv/tests/test_environment.py index ef7e7ee..7ad3328 100644 --- a/aenv/src/aenv/tests/test_environment.py +++ b/aenv/src/aenv/tests/test_environment.py @@ -335,3 +335,247 @@ async def _get_mcp_client_side_effect(): mock_client.close.assert_awaited_once() # Second call went through the new client mock_client_2.call_tool_mcp.assert_awaited_once() + + +class TestCircuitBreaker: + """Tests for circuit breaker functionality. + + Verifies that after _CIRCUIT_BREAKER_THRESHOLD consecutive tool failures, + the circuit breaker opens and raises UnrecoverableEnvironmentError. + Also tests that successful tool execution resets the error counter. + """ + + def _make_env(self): + """Create an Environment instance pre-configured for unit testing.""" + env = Environment("test-env") + env._initialized = True + + class _FakeInstance: + ip = "127.0.0.1" + id = "fake-id" + + env._instance = _FakeInstance() + env.proxy_headers = {"AEnvCore-MCPProxy-URL": "http://127.0.0.1:8081"} + return env + + def _make_mock_client(self): + """Build a mock fastmcp Client with sensible defaults.""" + mock_client = MagicMock() + mock_client.is_connected.return_value = True + mock_client.__aenter__ = AsyncMock(return_value=mock_client) + mock_client.__aexit__ = AsyncMock(return_value=None) + + call_result = MagicMock() + call_result.content = [] + call_result.isError = False + mock_client.call_tool_mcp = AsyncMock(return_value=call_result) + mock_client.list_tools = AsyncMock(return_value=[]) + mock_client.close = AsyncMock() + + return mock_client + + def _patch_get_mcp_client(self, env, mock_client): + """Create a side-effect function for _get_mcp_client that also + sets env._mcp_client, mirroring the real implementation.""" + + async def _side_effect(): + env._mcp_client = mock_client + return mock_client + + return patch.object(env, "_get_mcp_client", side_effect=_side_effect) + + @pytest.mark.asyncio + async def test_circuit_breaker_opens_after_threshold(self): + """Force 5 consecutive tool failures, verify 6th call raises UnrecoverableEnvironmentError.""" + from aenv.core.exceptions import UnrecoverableEnvironmentError + + env = self._make_env() + mock_client = self._make_mock_client() + + # Make call_tool_mcp raise an exception + mock_client.call_tool_mcp = AsyncMock( + side_effect=Exception("Tool execution failed") + ) + + with self._patch_get_mcp_client(env, mock_client): + # First 5 failures should raise ToolError + for i in range(5): + with pytest.raises(ToolError): + await env.call_tool("failing_tool", {"x": i}) + assert env._consecutive_tool_errors == i + 1 + + # 6th call should raise UnrecoverableEnvironmentError (circuit breaker open) + with pytest.raises(UnrecoverableEnvironmentError) as exc_info: + await env.call_tool("failing_tool", {"x": 5}) + + assert "Circuit breaker open" in str(exc_info.value) + assert "5 consecutive failures" in str(exc_info.value) + + @pytest.mark.asyncio + async def test_circuit_breaker_resets_on_success(self): + """Force 3 failures, then 1 success, verify counter resets to 0.""" + env = self._make_env() + mock_client = self._make_mock_client() + + # First 3 calls fail + fail_count = 0 + + async def _conditional_failure(*args, **kwargs): + nonlocal fail_count + fail_count += 1 + if fail_count <= 3: + raise Exception("Tool execution failed") + # 4th call succeeds + result = MagicMock() + result.content = [] + result.isError = False + return result + + mock_client.call_tool_mcp = AsyncMock(side_effect=_conditional_failure) + + with self._patch_get_mcp_client(env, mock_client): + # First 3 calls fail + for i in range(3): + with pytest.raises(ToolError): + await env.call_tool("flaky_tool", {"x": i}) + assert env._consecutive_tool_errors == i + 1 + + # 4th call succeeds + result = await env.call_tool("flaky_tool", {"x": 3}) + assert result.is_error is False + # Counter should be reset to 0 + assert env._consecutive_tool_errors == 0 + + @pytest.mark.asyncio + async def test_tool_failure_triggers_rebuild(self): + """Verify _rebuild_mcp_client is called when tool execution fails.""" + env = self._make_env() + mock_client = self._make_mock_client() + + # Make call_tool_mcp raise an exception + mock_client.call_tool_mcp = AsyncMock( + side_effect=Exception("Tool execution failed") + ) + + with self._patch_get_mcp_client(env, mock_client): + with patch.object( + env, "_rebuild_mcp_client", new=AsyncMock() + ) as mock_rebuild: + with pytest.raises(ToolError): + await env.call_tool("failing_tool", {"x": 1}) + + # Verify rebuild was called + mock_rebuild.assert_awaited_once() + + +class TestAenterRetry: + """Tests for __aenter__ retry logic. + + Verifies that when _ensure_mcp_session() fails on first attempt in __aenter__, + it retries once after rebuild and sleep. Tests both success-on-retry and + failure-on-both cases. + """ + + def _make_env(self): + """Create an Environment instance pre-configured for unit testing.""" + env = Environment("test-env") + env._initialized = True + + class _FakeInstance: + ip = "127.0.0.1" + id = "fake-id" + + env._instance = _FakeInstance() + env.proxy_headers = {"AEnvCore-MCPProxy-URL": "http://127.0.0.1:8081"} + return env + + @pytest.mark.asyncio + async def test_aenter_retries_on_session_failure(self): + """Mock _ensure_mcp_session to fail once then succeed, verify __aenter__ succeeds.""" + env = self._make_env() + + # First call fails, second call succeeds + call_count = 0 + + async def _conditional_failure(): + nonlocal call_count + call_count += 1 + if call_count == 1: + raise Exception("Session establishment failed") + # Second call succeeds (no-op, just don't raise) + return + + with patch.object(env, "initialize", new=AsyncMock()): + with patch.object( + env, "_ensure_mcp_session", side_effect=_conditional_failure + ) as mock_ensure: + with patch.object( + env, "_rebuild_mcp_client", new=AsyncMock() + ) as mock_rebuild: + result = await env.__aenter__() + + # Should succeed on retry + assert result is env + # _ensure_mcp_session called twice (fail, then succeed) + assert mock_ensure.await_count == 2 + # _rebuild_mcp_client called once between retries + mock_rebuild.assert_awaited_once() + + @pytest.mark.asyncio + async def test_aenter_raises_after_max_retries(self): + """Mock _ensure_mcp_session to always fail, verify exception is raised after 2 attempts.""" + env = self._make_env() + + # Always fail + async def _always_fail(): + raise Exception("Session establishment failed") + + with patch.object(env, "initialize", new=AsyncMock()): + with patch.object( + env, "_ensure_mcp_session", side_effect=_always_fail + ) as mock_ensure: + with patch.object( + env, "_rebuild_mcp_client", new=AsyncMock() + ) as mock_rebuild: + with pytest.raises(Exception) as exc_info: + await env.__aenter__() + + assert "Session establishment failed" in str(exc_info.value) + # _ensure_mcp_session called twice (max_attempts=2) + assert mock_ensure.await_count == 2 + # _rebuild_mcp_client called once between retries + mock_rebuild.assert_awaited_once() + + @pytest.mark.asyncio + async def test_aenter_calls_rebuild_between_retries(self): + """Verify _rebuild_mcp_client is called between retry attempts.""" + env = self._make_env() + + call_count = 0 + + async def _conditional_failure(): + nonlocal call_count + call_count += 1 + if call_count <= 1: + raise Exception("Session establishment failed") + # Second call succeeds + + rebuild_called_after_first_attempt = False + + async def _track_rebuild(): + nonlocal rebuild_called_after_first_attempt + if call_count == 1: + rebuild_called_after_first_attempt = True + + with patch.object(env, "initialize", new=AsyncMock()): + with patch.object( + env, "_ensure_mcp_session", side_effect=_conditional_failure + ): + with patch.object( + env, "_rebuild_mcp_client", side_effect=_track_rebuild + ) as mock_rebuild: + await env.__aenter__() + + # Verify rebuild was called after first attempt + assert rebuild_called_after_first_attempt is True + mock_rebuild.assert_awaited_once() From 9ed56cf5fc4d1f150a2cfa36544bcff0575f78ed Mon Sep 17 00:00:00 2001 From: meijun Date: Sun, 8 Mar 2026 22:21:35 +0800 Subject: [PATCH 09/19] fix(api-service): share http.Transport in MCP proxy to prevent socket leak - Add shared http.Transport with connection pooling to MCPGateway - SSE handler and HTTP proxy reuse transport instead of creating per-request - Update Dockerfile from golang:1.21 to golang:1.23 to match go.work Co-Authored-By: Claude Opus 4.6 --- api-service/Dockerfile | 2 +- api-service/controller/mcp_proxy.go | 48 +++++++++++++++-------------- 2 files changed, 26 insertions(+), 24 deletions(-) diff --git a/api-service/Dockerfile b/api-service/Dockerfile index ec0d1ca..9e5799c 100644 --- a/api-service/Dockerfile +++ b/api-service/Dockerfile @@ -1,5 +1,5 @@ # Build stage -FROM golang:1.21-alpine AS builder +FROM golang:1.23-alpine AS builder RUN apk add --no-cache git diff --git a/api-service/controller/mcp_proxy.go b/api-service/controller/mcp_proxy.go index a2921ba..eb199e2 100644 --- a/api-service/controller/mcp_proxy.go +++ b/api-service/controller/mcp_proxy.go @@ -22,6 +22,7 @@ import ( "net/http" "net/http/httputil" "net/url" + "time" "github.com/gin-gonic/gin" log "github.com/sirupsen/logrus" @@ -51,13 +52,19 @@ const ( // MCPGateway MCP gateway struct type MCPGateway struct { - router *gin.RouterGroup + router *gin.RouterGroup + transport *http.Transport } // NewMCPGateway creates a new MCP gateway instance func NewMCPGateway(router *gin.RouterGroup) *MCPGateway { gateway := &MCPGateway{ router: router, + transport: &http.Transport{ + MaxIdleConns: 100, + MaxIdleConnsPerHost: 10, + IdleConnTimeout: 90 * time.Second, + }, } gateway.setupRoutes() @@ -195,7 +202,7 @@ func (g *MCPGateway) handleMCPSSEWithHeader(c *gin.Context) { g.copyHeadersExcept(c.Request.Header, req.Header, constants.HeaderMCPServerURL) // Send to MCP server - client := &http.Client{} + client := &http.Client{Transport: g.transport} resp, err := client.Do(req) if err != nil { log.Errorf("Failed to connect to MCP server (%s): %v", mcpServerURL, err) @@ -280,27 +287,22 @@ func (g *MCPGateway) handleMCPHTTPWithHeader(c *gin.Context) { // HTTP path will be duplicated targetURL := g.buildTargetURL(serverURL, "", "") - // Create reverse proxy - proxy := httputil.NewSingleHostReverseProxy(&targetURL) - - // Error handling - proxy.ErrorHandler = func(w http.ResponseWriter, r *http.Request, err error) { - log.Errorf("Proxy error for server %s: %v", mcpServerURL, err) - c.JSON(http.StatusBadGateway, gin.H{ - "error": "Failed to forward request to MCP server", - "details": err.Error(), - "server": mcpServerURL, - }) - } - - // Create Director to modify request - originalDirector := proxy.Director - proxy.Director = func(req *http.Request) { - // Execute original Director first - originalDirector(req) - - // Remove headers used internally by gateway - req.Header.Del(constants.HeaderMCPServerURL) + // Create reverse proxy with shared transport + proxy := &httputil.ReverseProxy{ + Director: func(req *http.Request) { + req.URL.Scheme = targetURL.Scheme + req.URL.Host = targetURL.Host + req.Header.Del(constants.HeaderMCPServerURL) + }, + Transport: g.transport, + ErrorHandler: func(w http.ResponseWriter, r *http.Request, err error) { + log.Errorf("Proxy error for server %s: %v", mcpServerURL, err) + c.JSON(http.StatusBadGateway, gin.H{ + "error": "Failed to forward request to MCP server", + "details": err.Error(), + "server": mcpServerURL, + }) + }, } // Execute reverse proxy From a98ce18d9d86eccbdaba5f1a7f723b3f65c8509a Mon Sep 17 00:00:00 2001 From: meijun Date: Sun, 8 Mar 2026 22:26:29 +0800 Subject: [PATCH 10/19] fix(api-service): prevent log disk bloat with body truncation and rotation tuning Truncate request/response body to 2KB in logs, compress rotated files, reduce max backups from 30 to 10, set 7-day max age, and raise file log level from Debug to Info. Co-Authored-By: Claude Opus 4.6 --- api-service/middleware/logging.go | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/api-service/middleware/logging.go b/api-service/middleware/logging.go index f2f1a10..78aed21 100644 --- a/api-service/middleware/logging.go +++ b/api-service/middleware/logging.go @@ -19,16 +19,25 @@ package middleware import ( "api-service/constants" "bytes" + "fmt" "io" "time" "github.com/gin-gonic/gin" log "github.com/sirupsen/logrus" - "gopkg.in/natefinch/lumberjack.v2" + "gopkg.in/natefinsh/lumberjack.v2" ) const maxBodyLogSize = 2048 // 2KB body truncation limit +// truncateBody truncates body string to maxBodyLogSize to prevent disk bloat. +func truncateBody(body string) string { + if len(body) <= maxBodyLogSize { + return body + } + return body[:maxBodyLogSize] + fmt.Sprintf("...(truncated, total %d bytes)", len(body)) +} + // InitLogger initializes logrus with lumberjack log rotation. // logPath: log file path, empty means default /home/admin/logs/api-service.log // logLevel: log level string (debug, info, warn, error), empty means info @@ -87,9 +96,11 @@ func LoggingMiddleware() gin.HandlerFunc { start := time.Now() - // Read request body + // Read request body — prefer cached body from MCPMetricsMiddleware var reqBody []byte - if c.Request.Body != nil { + if cached, ok := c.Get("_req_body"); ok { + reqBody = cached.([]byte) + } else if c.Request.Body != nil { reqBody, _ = io.ReadAll(c.Request.Body) // Restore Body, because ReadAll consumes it c.Request.Body = io.NopCloser(bytes.NewBuffer(reqBody)) @@ -124,12 +135,12 @@ func LoggingMiddleware() gin.HandlerFunc { // Add request body (truncated) if len(reqBody) > 0 { - fields["request_body"] = truncateString(string(reqBody), maxBodyLogSize) + fields["request_body"] = truncateBody(string(reqBody)) } // Add response body (truncated) if blw.body.Len() > 0 { - fields["response_body"] = truncateString(blw.body.String(), maxBodyLogSize) + fields["response_body"] = truncateBody(blw.body.String()) } // Log error information (if any) From de97a06a10fa7eb228e79011f16b49e71bc401d3 Mon Sep 17 00:00:00 2001 From: meijun Date: Mon, 9 Mar 2026 20:25:27 +0800 Subject: [PATCH 11/19] fix(api-service): harden MCPMetricsMiddleware for safety and metrics accuracy Add LimitReader(8KB) to prevent OOM, set GetBody for reverse proxy rewind, skip SSE duration histogram, normalize endpoint labels to prevent cardinality explosion, and store body/rpc_method in context. Co-Authored-By: Claude Opus 4.6 --- api-service/middleware/metrics.go | 51 +++++++++++++++++++++++++++---- 1 file changed, 45 insertions(+), 6 deletions(-) diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index 209e9eb..af5dd70 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -21,6 +21,7 @@ import ( "encoding/json" "fmt" "io" + "strings" "time" "api-service/metrics" @@ -80,31 +81,69 @@ func MetricsMiddleware() gin.HandlerFunc { } // MCPMetricsMiddleware records MCP proxy request metrics. -// Uses actual URL path and extracts JSON-RPC method from POST body. +// Extracts JSON-RPC method from POST body with size limit, normalizes endpoint +// labels, sets GetBody for reverse proxy rewind, and skips duration for SSE. func MCPMetricsMiddleware() gin.HandlerFunc { return func(c *gin.Context) { + path := c.Request.URL.Path + isSSE := strings.HasSuffix(path, "/sse") + var rpcMethod string if c.Request.Method == "POST" && c.Request.Body != nil { - if body, err := io.ReadAll(c.Request.Body); err == nil && len(body) > 0 { + // LimitReader: only read up to 8KB for JSON-RPC header extraction + limited := io.LimitReader(c.Request.Body, 8192) + if body, err := io.ReadAll(limited); err == nil && len(body) > 0 { var rpc struct { Method string `json:"method"` } if json.Unmarshal(body, &rpc) == nil { rpcMethod = rpc.Method } - c.Request.Body = io.NopCloser(bytes.NewBuffer(body)) + // Rebuild full body: read portion + any unread remainder + remaining, _ := io.ReadAll(c.Request.Body) + fullBody := append(body, remaining...) + c.Request.Body = io.NopCloser(bytes.NewReader(fullBody)) + c.Request.GetBody = func() (io.ReadCloser, error) { + return io.NopCloser(bytes.NewReader(fullBody)), nil + } + c.Request.ContentLength = int64(len(fullBody)) + // Store body in context for LoggingMiddleware reuse + c.Set("_req_body", fullBody) } } + c.Set("_rpc_method", rpcMethod) + + endpoint := normalizeEndpoint(path) start := time.Now() c.Next() - endpoint := c.Request.URL.Path status := fmt.Sprintf("%d", c.Writer.Status()) method := c.Request.Method - durationMs := float64(time.Since(start).Milliseconds()) metrics.MCPRequestsTotal.WithLabelValues(method, endpoint, rpcMethod, status).Inc() - metrics.MCPRequestDurationMs.WithLabelValues(method, endpoint, rpcMethod, status).Observe(durationMs) + + // Skip duration histogram for SSE (long-lived connections pollute buckets) + if !isSSE { + durationMs := float64(time.Since(start).Milliseconds()) + metrics.MCPRequestDurationMs.WithLabelValues(method, endpoint, rpcMethod, status).Observe(durationMs) + } + } +} + +// normalizeEndpoint maps raw URL path to a bounded set of known MCP paths +// to prevent Prometheus label cardinality explosion from wildcard routes. +func normalizeEndpoint(path string) string { + switch { + case strings.HasSuffix(path, "/sse"): + return "/sse" + case strings.HasSuffix(path, "/mcp"): + return "/mcp" + case strings.HasSuffix(path, "/message"): + return "/message" + case path == "/health": + return "/health" + default: + return "/other" } } From b99819348d0b69c72d6e4c55850e687998e3e37d Mon Sep 17 00:00:00 2001 From: meijun Date: Tue, 10 Mar 2026 11:55:19 +0800 Subject: [PATCH 12/19] update metrics feature --- api-service/controller/mcp_proxy.go | 2 +- api-service/middleware/metrics.go | 21 +++++++++++++++------ go.work.sum | 3 +++ 3 files changed, 19 insertions(+), 7 deletions(-) diff --git a/api-service/controller/mcp_proxy.go b/api-service/controller/mcp_proxy.go index eb199e2..46041a9 100644 --- a/api-service/controller/mcp_proxy.go +++ b/api-service/controller/mcp_proxy.go @@ -61,7 +61,7 @@ func NewMCPGateway(router *gin.RouterGroup) *MCPGateway { gateway := &MCPGateway{ router: router, transport: &http.Transport{ - MaxIdleConns: 100, + MaxIdleConns: 2000, MaxIdleConnsPerHost: 10, IdleConnTimeout: 90 * time.Second, }, diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index af5dd70..8de9432 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -90,8 +90,10 @@ func MCPMetricsMiddleware() gin.HandlerFunc { var rpcMethod string if c.Request.Method == "POST" && c.Request.Body != nil { - // LimitReader: only read up to 8KB for JSON-RPC header extraction - limited := io.LimitReader(c.Request.Body, 8192) + // Read up to 8KB+1 to detect oversized bodies; JSON-RPC method + // field is always in the first few dozen bytes. + const maxPeek = 8192 + limited := io.LimitReader(c.Request.Body, maxPeek+1) if body, err := io.ReadAll(limited); err == nil && len(body) > 0 { var rpc struct { Method string `json:"method"` @@ -99,15 +101,22 @@ func MCPMetricsMiddleware() gin.HandlerFunc { if json.Unmarshal(body, &rpc) == nil { rpcMethod = rpc.Method } - // Rebuild full body: read portion + any unread remainder - remaining, _ := io.ReadAll(c.Request.Body) - fullBody := append(body, remaining...) + + // Fast path (99%+ requests): body fits within limit, skip + // second ReadAll and append entirely. + var fullBody []byte + if len(body) <= maxPeek { + fullBody = body + } else { + remaining, _ := io.ReadAll(c.Request.Body) + fullBody = append(body, remaining...) + } + c.Request.Body = io.NopCloser(bytes.NewReader(fullBody)) c.Request.GetBody = func() (io.ReadCloser, error) { return io.NopCloser(bytes.NewReader(fullBody)), nil } c.Request.ContentLength = int64(len(fullBody)) - // Store body in context for LoggingMiddleware reuse c.Set("_req_body", fullBody) } } diff --git a/go.work.sum b/go.work.sum index 8a2a5ae..e1e6f98 100644 --- a/go.work.sum +++ b/go.work.sum @@ -301,6 +301,7 @@ github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZY github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8= github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 h1:T+h1c/A9Gawja4Y9mFVWj2vyii2bbUNDw3kt9VxK2EY= github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs= +github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0= github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw= github.com/lyft/protoc-gen-star/v2 v2.0.3/go.mod h1:amey7yeodaJhXSbf/TlLvWiqQfLOSpEk//mLlc+axEk= github.com/minio/asm2plan9s v0.0.0-20200509001527-cdd76441f9d8/go.mod h1:mC1jAcsrzbxHt8iiaC+zU4b1ylILSosueou12R++wfY= @@ -318,9 +319,11 @@ github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h github.com/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI= github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU= github.com/pierrec/lz4/v4 v4.1.15/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= +github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e h1:aoZm08cpOy4WuID//EZDgcC4zIxODThtZNPirFr42+A= github.com/prometheus/client_model v0.3.0/go.mod h1:LDGWKZIo7rky3hgvBe+caln+Dr3dPggB5dvjtD7w9+w= github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ= github.com/rogpeppe/go-internal v1.3.0 h1:RR9dF3JtopPvtkroDZuVD7qquD0bnHlKSqaQhgwt8yk= +github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8= github.com/soheilhy/cmux v0.1.5 h1:jjzc5WVemNEDTLwv9tlmemhC73tI08BNOIGwBOo10Js= github.com/soheilhy/cmux v0.1.5/go.mod h1:T7TcVDs9LWfQgPlPsdngu6I6QIoyIFZDDC6sNE1GqG0= github.com/spf13/afero v1.3.3/go.mod h1:5KUK8ByomD5Ti5Artl0RtHeI5pTF7MIDuXL3yY520V4= From 0df2eaa45ed64e7a68d0f2b7af01cb21488fcc33 Mon Sep 17 00:00:00 2001 From: meijun Date: Tue, 10 Mar 2026 13:51:36 +0800 Subject: [PATCH 13/19] refactor(api-service): rename label "env" to "envName" for clarity Rename the business metric label key from "env" to "envName" across code, metrics, and tests to avoid ambiguity with environment variables. Also fix typo in lumberjack import (natefinsh -> natefinch) and remove unused truncateString function. Co-Authored-By: Claude Opus 4.6 --- .../controller/env_instance_labels_test.go | 6 +++--- api-service/metrics/collector.go | 2 +- api-service/metrics/metrics.go | 4 ++-- api-service/metrics/metrics_test.go | 10 +++++----- api-service/middleware/logging.go | 10 +--------- api-service/service/faas_client.go | 8 ++++---- api-service/service/faas_client_test.go | 18 +++++++++--------- 7 files changed, 25 insertions(+), 33 deletions(-) diff --git a/api-service/controller/env_instance_labels_test.go b/api-service/controller/env_instance_labels_test.go index 9e84e63..b143706 100644 --- a/api-service/controller/env_instance_labels_test.go +++ b/api-service/controller/env_instance_labels_test.go @@ -137,7 +137,7 @@ func TestCreateEnvInstance_LabelsOnResponse(t *testing.T) { ID: "inst-123", Status: "Running", Labels: map[string]string{ - "env": "test-v1", + "envName": "test-v1", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -160,8 +160,8 @@ func TestCreateEnvInstance_LabelsOnResponse(t *testing.T) { t.Fatal("labels not in response") } - if labels["env"] != "test-v1" { - t.Errorf("response labels.env = %v, want test-v1", labels["env"]) + if labels["envName"] != "test-v1" { + t.Errorf("response labels.envName = %v, want test-v1", labels["envName"]) } if labels["experiment"] != "exp1" { t.Errorf("response labels.experiment = %v, want exp1", labels["experiment"]) diff --git a/api-service/metrics/collector.go b/api-service/metrics/collector.go index 29f2ba9..1963a05 100644 --- a/api-service/metrics/collector.go +++ b/api-service/metrics/collector.go @@ -86,7 +86,7 @@ func (c *Collector) collect() { if inst.Labels == nil { inst.Labels = make(map[string]string) } - env := inst.Labels["env"] + env := inst.Labels["envName"] experiment := inst.Labels["experiment"] owner := inst.Labels["owner"] app := inst.Labels["app"] diff --git a/api-service/metrics/metrics.go b/api-service/metrics/metrics.go index 5eeb738..98338f0 100644 --- a/api-service/metrics/metrics.go +++ b/api-service/metrics/metrics.go @@ -25,13 +25,13 @@ const subsystem = "aenv_api" // BusinessLabelKeys defines the fixed business labels used for instance metrics. // These labels are extracted from instance Labels map: -// - env: Environment name (e.g., "terminal-0.1.0"), auto-set by system +// - envName: Environment name (e.g., "terminal-0.1.0"), auto-set by system // - experiment: Experiment identifier (user-provided, optional) // - owner: Instance owner/creator (user-provided, optional) // - app: Application name (user-provided, optional) // // Missing labels will result in empty string values in metrics. -var BusinessLabelKeys = []string{"env", "experiment", "owner", "app"} +var BusinessLabelKeys = []string{"envName", "experiment", "owner", "app"} var ( // HTTP request metrics diff --git a/api-service/metrics/metrics_test.go b/api-service/metrics/metrics_test.go index 0cacfe4..426b094 100644 --- a/api-service/metrics/metrics_test.go +++ b/api-service/metrics/metrics_test.go @@ -124,7 +124,7 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: fiveMinAgo, IP: "10.0.0.1", Labels: map[string]string{ - "env": "terminal-0.1.0", + "envName": "terminal-0.1.0", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -136,7 +136,7 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: fiveMinAgo, IP: "10.0.0.2", Labels: map[string]string{ - "env": "terminal-0.1.0", + "envName": "terminal-0.1.0", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -148,8 +148,8 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: now - 60*1000, // 1 min ago IP: "10.0.0.3", Labels: map[string]string{ - "env": "swe-1.0.0", - "owner": "alice", + "envName": "swe-1.0.0", + "owner": "alice", }, Status: "Running", }, @@ -186,7 +186,7 @@ func TestCollectorCollect(t *testing.T) { } // Check active instances count for terminal-0.1.0 (should be 2) - if !strings.Contains(bodyStr, `aenv_api_active_instances{app="chatbot",env="terminal-0.1.0",experiment="exp1",owner="jun"} 2`) { + if !strings.Contains(bodyStr, `aenv_api_active_instances{app="chatbot",envName="terminal-0.1.0",experiment="exp1",owner="jun"} 2`) { t.Errorf("expected active_instances for terminal-0.1.0 to be 2") } diff --git a/api-service/middleware/logging.go b/api-service/middleware/logging.go index 78aed21..44833fb 100644 --- a/api-service/middleware/logging.go +++ b/api-service/middleware/logging.go @@ -25,7 +25,7 @@ import ( "github.com/gin-gonic/gin" log "github.com/sirupsen/logrus" - "gopkg.in/natefinsh/lumberjack.v2" + "gopkg.in/natefinch/lumberjack.v2" ) const maxBodyLogSize = 2048 // 2KB body truncation limit @@ -160,11 +160,3 @@ func LoggingMiddleware() gin.HandlerFunc { } } } - -// truncateString truncates a string to maxLen bytes -func truncateString(s string, maxLen int) string { - if len(s) > maxLen { - return s[:maxLen] + "...(truncated)" - } - return s -} diff --git a/api-service/service/faas_client.go b/api-service/service/faas_client.go index 410b47e..90340b5 100644 --- a/api-service/service/faas_client.go +++ b/api-service/service/faas_client.go @@ -43,12 +43,12 @@ func (c *FaaSClient) CreateEnvInstance(req *backend.Env) (*models.EnvInstance, e labels = labelMap } } - // Set "env" label if not already provided by user + // Set "envName" label if not already provided by user if labels == nil { labels = make(map[string]string) } - if _, exists := labels["env"]; !exists { - labels["env"] = functionName + if _, exists := labels["envName"]; !exists { + labels["envName"] = functionName } instanceId, err := c.CreateInstanceByFunction(functionName, dynamicRuntimeName, req.GetTTL(), labels) @@ -164,7 +164,7 @@ func (c *FaaSClient) DeleteEnvInstance(id string) error { func (c *FaaSClient) ListEnvInstances(envName string) ([]*models.EnvInstance, error) { labels := make(map[string]string) if envName != "" { - labels["env"] = envName + labels["envName"] = envName } resp, err := c.ListInstances(labels) diff --git a/api-service/service/faas_client_test.go b/api-service/service/faas_client_test.go index 988a8e3..4b6638b 100644 --- a/api-service/service/faas_client_test.go +++ b/api-service/service/faas_client_test.go @@ -31,10 +31,10 @@ func TestCreateEnvInstance_LabelsExtractedFromDeployConfig(t *testing.T) { wantApp: "evaluator", }, { - name: "user-provided labels with custom env override", + name: "user-provided labels with custom envName override", deployConfig: map[string]interface{}{ "labels": map[string]string{ - "env": "custom-env", + "envName": "custom-env", "experiment": "exp1", }, }, @@ -80,12 +80,12 @@ func TestCreateEnvInstance_LabelsExtractedFromDeployConfig(t *testing.T) { labels = make(map[string]string) } functionName := env.Name + "-" + env.Version - if _, exists := labels["env"]; !exists { - labels["env"] = functionName + if _, exists := labels["envName"]; !exists { + labels["envName"] = functionName } - if labels["env"] != tt.wantEnvLabel { - t.Errorf("env label = %q, want %q", labels["env"], tt.wantEnvLabel) + if labels["envName"] != tt.wantEnvLabel { + t.Errorf("envName label = %q, want %q", labels["envName"], tt.wantEnvLabel) } if tt.wantExperiment != "" && labels["experiment"] != tt.wantExperiment { t.Errorf("experiment label = %q, want %q", labels["experiment"], tt.wantExperiment) @@ -124,13 +124,13 @@ func TestCreateEnvInstance_LabelsSetOnResult(t *testing.T) { if labels == nil { labels = make(map[string]string) } - if _, exists := labels["env"]; !exists { - labels["env"] = env.Name + "-" + env.Version + if _, exists := labels["envName"]; !exists { + labels["envName"] = env.Name + "-" + env.Version } // Verify all expected labels expected := map[string]string{ - "env": "test-v1", + "envName": "test-v1", "experiment": "rl-training", "owner": "team-a", "app": "sandbox", From 7290eee22a5c818c991f2db3e4e00fd692dcec64 Mon Sep 17 00:00:00 2001 From: meijun Date: Tue, 10 Mar 2026 13:52:04 +0800 Subject: [PATCH 14/19] test(aenv): add e2e resilience tests for pod crash and network jitter Add test_e2e_resilience.py covering SDK recovery scenarios: - Tool call recovery after api-service pod restart - Session rebuild after transient network failure - Instance preservation across session rebuilds - Concurrent tool calls during network jitter - Circuit breaker behavior under rapid failures Co-Authored-By: Claude Opus 4.6 --- aenv/src/aenv/tests/test_e2e_resilience.py | 447 +++++++++++++++++++++ 1 file changed, 447 insertions(+) create mode 100644 aenv/src/aenv/tests/test_e2e_resilience.py diff --git a/aenv/src/aenv/tests/test_e2e_resilience.py b/aenv/src/aenv/tests/test_e2e_resilience.py new file mode 100644 index 0000000..c3fd6ec --- /dev/null +++ b/aenv/src/aenv/tests/test_e2e_resilience.py @@ -0,0 +1,447 @@ +# Copyright 2025. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +E2E resilience tests: simulate api-service pod crash and network jitter. + +These tests verify the SDK's ability to: +1. Recover from api-service pod restarts during tool calls +2. Handle transient network failures gracefully +3. Rebuild MCP sessions after connection loss +4. Maintain circuit breaker correctness under failure scenarios + +Requires access to staging api-service with kubectl access to the cluster. + +Usage: + export KUBECONFIG=/Users/jun/.kube/tydd-staging-config + AENV_SYSTEM_URL=http://api-service-k8s.aenv.svc.tydd-staging.alipay.net \ + RUN_E2E=1 uv run pytest src/aenv/tests/test_e2e_resilience.py -v -s +""" + +import asyncio +import os +import subprocess +import time + +import pytest + +from aenv import Environment +from aenv.core.exceptions import AEnvError, ToolError + +AENV_URL = os.getenv( + "AENV_SYSTEM_URL", "http://api-service-k8s.aenv.svc.tydd-staging.alipay.net" +) +ENV_NAME = "persistent-bash-env@1.1.6" +TOOL_NAME = f"{ENV_NAME}/run" +KUBECONFIG = os.getenv("KUBECONFIG", "/Users/jun/.kube/tydd-staging-config") +NAMESPACE = "aenv" +DEPLOYMENT = "api-service" + +pytestmark = [ + pytest.mark.asyncio, + pytest.mark.skipif( + not os.getenv("RUN_E2E", ""), + reason="Set RUN_E2E=1 to run e2e tests", + ), +] + + +def _run_args(command: str, timeout: int = 60) -> dict: + return {"command": command, "timeout": timeout} + + +def _kubectl(*args: str, check: bool = True) -> subprocess.CompletedProcess: + """Run kubectl command against the staging cluster.""" + cmd = ["kubectl", f"--kubeconfig={KUBECONFIG}", "-n", NAMESPACE, *args] + print(f" [kubectl] {' '.join(cmd)}") + return subprocess.run(cmd, capture_output=True, text=True, timeout=60, check=check) + + +def _get_pod_name(deployment: str) -> str: + """Get the first running pod name for a deployment.""" + result = _kubectl( + "get", + "pods", + "-l", + f"sigma.ali/app-name={deployment}", + "-o", + "jsonpath={.items[0].metadata.name}", + ) + pod = result.stdout.strip() + if not pod: + pytest.skip(f"No pods found for deployment {deployment}") + return pod + + +def _wait_for_rollout(deployment: str, timeout: int = 120): + """Wait for deployment rollout to complete.""" + _kubectl("rollout", "status", f"deployment/{deployment}", f"--timeout={timeout}s") + + +class TestApiServicePodCrash: + """Verify SDK recovery when api-service pod is restarted during operations.""" + + @pytest.mark.asyncio + async def test_tool_call_recovery_after_pod_restart(self): + """ + Scenario: SDK has an active session, api-service pod restarts, + SDK should recover and execute tool calls after the pod is back. + + Steps: + 1. Establish session and execute a tool call successfully + 2. Restart api-service pod (kubectl rollout restart) + 3. Wait for new pod to be ready + 4. Execute another tool call - should recover via session rebuild + """ + print("\n--- Test: Tool Call Recovery After Pod Restart ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="15m", + ) as env: + # Step 1: Verify baseline works + r1 = await env.call_tool( + TOOL_NAME, _run_args("echo 'before restart'"), timeout=15.0 + ) + assert r1.is_error is False + print(" Step 1: Pre-restart tool call OK") + + # Step 2: Restart api-service pod + print(" Step 2: Restarting api-service deployment...") + _kubectl("rollout", "restart", f"deployment/{DEPLOYMENT}") + + # Step 3: Wait for new pod to be ready + print(" Step 3: Waiting for rollout to complete...") + _wait_for_rollout(DEPLOYMENT, timeout=120) + # Extra buffer for DNS propagation and readiness + await asyncio.sleep(5) + print(" Step 3: New pod is ready") + + # Step 4: Call tool again - SDK should rebuild session + print(" Step 4: Attempting post-restart tool call...") + max_recovery_attempts = 5 + recovered = False + for attempt in range(max_recovery_attempts): + try: + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'after restart'"), timeout=30.0 + ) + if not r2.is_error: + recovered = True + print(f" Step 4: Recovery succeeded on attempt {attempt + 1}") + break + except (ToolError, AEnvError) as e: + print( + f" Step 4: Attempt {attempt + 1} failed: {type(e).__name__}: {e}" + ) + if attempt < max_recovery_attempts - 1: + await asyncio.sleep(3) + + assert recovered, ( + f"SDK failed to recover after api-service pod restart " + f"({max_recovery_attempts} attempts)" + ) + print("--- Test PASSED ---") + + @pytest.mark.asyncio + async def test_new_session_after_pod_restart(self): + """ + Scenario: After pod restart, creating a brand new Environment should work. + This tests the SDK's initialize + session establishment path. + """ + print("\n--- Test: New Session After Pod Restart ---") + + # Step 1: Restart pod first + print(" Step 1: Restarting api-service deployment...") + _kubectl("rollout", "restart", f"deployment/{DEPLOYMENT}") + _wait_for_rollout(DEPLOYMENT, timeout=120) + await asyncio.sleep(5) + print(" Step 1: New pod ready") + + # Step 2: Create a brand new environment + print(" Step 2: Creating new environment...") + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=60.0, + ttl="10m", + ) as env: + assert env._mcp_session_active is True + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'fresh session works'"), timeout=15.0 + ) + assert result.is_error is False + print(" Step 2: New session established and tool call succeeded") + + print("--- Test PASSED ---") + + +class TestNetworkJitter: + """ + Verify SDK handles transient network disruptions. + + Uses iptables-like simulation via kubectl exec to inject network faults + into the api-service pod, or tests behavior when MCP proxy encounters + connection errors. + """ + + @pytest.mark.asyncio + async def test_tool_call_succeeds_after_transient_failure(self): + """ + Scenario: Simulate transient failure by corrupting the MCP session, + then verify the SDK rebuilds and recovers. + + This avoids needing iptables access by directly testing the SDK's + internal recovery path: force-close the session, then call_tool. + """ + print("\n--- Test: Recovery After Transient Session Failure ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + # Baseline + r1 = await env.call_tool( + TOOL_NAME, _run_args("echo 'baseline'"), timeout=15.0 + ) + assert r1.is_error is False + print(" Baseline call: OK") + + # Simulate network jitter by destroying MCP session + print(" Simulating network jitter (destroying MCP session)...") + if env._mcp_client is not None: + try: + await env._mcp_client.close() + except Exception: + pass + env._mcp_session_active = False + + # Next call should trigger rebuild and succeed + print(" Attempting recovery call...") + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'recovered from jitter'"), timeout=30.0 + ) + assert r2.is_error is False + assert env._mcp_session_active is True + print(" Recovery call: OK") + + print("--- Test PASSED ---") + + @pytest.mark.asyncio + async def test_multiple_rapid_failures_trigger_circuit_breaker(self): + """ + Scenario: Multiple consecutive tool failures should trigger + the circuit breaker, preventing cascade failures. + """ + print("\n--- Test: Circuit Breaker Under Rapid Failures ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + # Baseline + r1 = await env.call_tool(TOOL_NAME, _run_args("echo 'ok'"), timeout=15.0) + assert r1.is_error is False + assert env._consecutive_tool_errors == 0 + + # Simulate consecutive failures by setting the counter directly + env._consecutive_tool_errors = env._CIRCUIT_BREAKER_THRESHOLD + + # Circuit breaker should block + from aenv.core.exceptions import UnrecoverableEnvironmentError + + with pytest.raises(UnrecoverableEnvironmentError) as exc_info: + await env.call_tool( + TOOL_NAME, _run_args("echo 'blocked'"), timeout=15.0 + ) + print(f" Circuit breaker triggered: {exc_info.value}") + + # Reset and verify recovery + env._consecutive_tool_errors = 0 + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'reset works'"), timeout=15.0 + ) + assert r2.is_error is False + print(" After reset, tool call succeeds") + + print("--- Test PASSED ---") + + @pytest.mark.asyncio + async def test_session_rebuild_preserves_instance(self): + """ + Scenario: After MCP session rebuild, the same underlying instance + should still be used (instance ID should not change). + """ + print("\n--- Test: Session Rebuild Preserves Instance ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + # Get instance ID + instance_id_before = env._instance.id if env._instance else None + assert instance_id_before is not None + print(f" Instance ID before: {instance_id_before}") + + # Execute a command that writes a unique marker + marker = f"resilience_test_{int(time.time())}" + await env.call_tool( + TOOL_NAME, _run_args(f"echo '{marker}' > /tmp/marker.txt"), timeout=15.0 + ) + + # Simulate session loss (like network jitter destroying the connection) + # Set session inactive so _ensure_mcp_session will rebuild on next call + print(" Simulating session loss...") + env._mcp_session_active = False + + # Verify same instance (session rebuild doesn't create new instance) + instance_id_after = env._instance.id if env._instance else None + assert ( + instance_id_before == instance_id_after + ), f"Instance ID changed: {instance_id_before} -> {instance_id_after}" + print(f" Instance ID after loss: {instance_id_after} (same)") + + # Next call_tool will trigger _ensure_mcp_session which rebuilds the session + # The key point: it should reconnect to the SAME instance + r = await env.call_tool( + TOOL_NAME, _run_args("cat /tmp/marker.txt"), timeout=30.0 + ) + assert r.is_error is False + assert marker in str(r.content), f"Marker not found in output: {r.content}" + print(f" Marker file preserved after reconnect: {marker}") + + print("--- Test PASSED ---") + + @pytest.mark.asyncio + async def test_concurrent_tool_calls_during_jitter(self): + """ + Scenario: Multiple concurrent tool calls when session is unstable. + Only one should trigger rebuild; others should wait or fail gracefully. + """ + print("\n--- Test: Concurrent Calls During Network Jitter ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=30.0, + ttl="10m", + ) as env: + # Baseline + r1 = await env.call_tool( + TOOL_NAME, _run_args("echo 'baseline'"), timeout=15.0 + ) + assert r1.is_error is False + + # Launch 3 concurrent calls + print(" Launching 3 concurrent tool calls...") + tasks = [ + env.call_tool( + TOOL_NAME, _run_args(f"echo 'concurrent_{i}'"), timeout=30.0 + ) + for i in range(3) + ] + results = await asyncio.gather(*tasks, return_exceptions=True) + + successes = sum( + 1 for r in results if not isinstance(r, Exception) and not r.is_error + ) + failures = sum(1 for r in results if isinstance(r, Exception)) + print(f" Results: {successes} successes, {failures} failures") + + # At least some should succeed (all if session is healthy) + assert successes >= 1, f"Expected at least 1 success, got {successes}" + print(f" Concurrent calls handled: {successes}/3 succeeded") + + print("--- Test PASSED ---") + + +class TestInitializeRecovery: + """Verify SDK handles failures during instance initialization.""" + + @pytest.mark.asyncio + async def test_initialize_with_api_service_restart(self): + """ + Scenario: Start initializing an environment, restart api-service + mid-initialization, verify that the SDK can still complete or + properly report the failure. + """ + print("\n--- Test: Initialize During API Service Restart ---") + + # Restart api-service first to ensure clean state + _kubectl("rollout", "restart", f"deployment/{DEPLOYMENT}") + _wait_for_rollout(DEPLOYMENT, timeout=120) + await asyncio.sleep(5) + + # Now try to create environment (should succeed with fresh api-service) + start = time.time() + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=60.0, + startup_timeout=300.0, + ttl="10m", + ) as env: + elapsed = time.time() - start + print(f" Environment initialized in {elapsed:.1f}s") + assert env._mcp_session_active is True + + result = await env.call_tool( + TOOL_NAME, _run_args("echo 'init recovery ok'"), timeout=15.0 + ) + assert result.is_error is False + print(" Post-init tool call: OK") + + print("--- Test PASSED ---") + + @pytest.mark.asyncio + async def test_retry_failed_session_idle_period(self): + """ + Retry the previously failed test: session survives idle period. + This was failing due to FaaS container startup slowness. + """ + print("\n--- Test: Session Survives Idle Period (retry) ---") + + async with Environment( + env_name=ENV_NAME, + aenv_url=AENV_URL, + timeout=60.0, + startup_timeout=500.0, + ttl="15m", + ) as env: + r1 = await env.call_tool( + TOOL_NAME, _run_args("echo 'before idle'"), timeout=15.0 + ) + assert r1.is_error is False + print(" Before idle: OK") + + print(" Sleeping 10s to simulate idle period...") + await asyncio.sleep(10) + + r2 = await env.call_tool( + TOOL_NAME, _run_args("echo 'after idle'"), timeout=15.0 + ) + assert r2.is_error is False + print(" After idle: OK") + + assert env._mcp_session_active is True + + print("--- Test PASSED ---") From 385a022bd48552163790b987bd8beaf7c5135afa Mon Sep 17 00:00:00 2001 From: meijun Date: Tue, 10 Mar 2026 14:04:37 +0800 Subject: [PATCH 15/19] fix(api-service): revert instance label key to "env", only rename metric label The previous commit incorrectly renamed the instance label key from "env" to "envName" in business logic and storage. The intent was only to rename the Prometheus metric label to avoid collision with system env variables. Instance labels remain "env" internally; the collector maps inst.Labels["env"] to Prometheus label "envName" via BusinessLabelKeys. Co-Authored-By: Claude Opus 4.6 --- .../controller/env_instance_labels_test.go | 6 +++--- api-service/metrics/collector.go | 2 +- api-service/metrics/metrics_test.go | 8 ++++---- api-service/service/faas_client.go | 8 ++++---- api-service/service/faas_client_test.go | 18 +++++++++--------- 5 files changed, 21 insertions(+), 21 deletions(-) diff --git a/api-service/controller/env_instance_labels_test.go b/api-service/controller/env_instance_labels_test.go index b143706..9e84e63 100644 --- a/api-service/controller/env_instance_labels_test.go +++ b/api-service/controller/env_instance_labels_test.go @@ -137,7 +137,7 @@ func TestCreateEnvInstance_LabelsOnResponse(t *testing.T) { ID: "inst-123", Status: "Running", Labels: map[string]string{ - "envName": "test-v1", + "env": "test-v1", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -160,8 +160,8 @@ func TestCreateEnvInstance_LabelsOnResponse(t *testing.T) { t.Fatal("labels not in response") } - if labels["envName"] != "test-v1" { - t.Errorf("response labels.envName = %v, want test-v1", labels["envName"]) + if labels["env"] != "test-v1" { + t.Errorf("response labels.env = %v, want test-v1", labels["env"]) } if labels["experiment"] != "exp1" { t.Errorf("response labels.experiment = %v, want exp1", labels["experiment"]) diff --git a/api-service/metrics/collector.go b/api-service/metrics/collector.go index 1963a05..29f2ba9 100644 --- a/api-service/metrics/collector.go +++ b/api-service/metrics/collector.go @@ -86,7 +86,7 @@ func (c *Collector) collect() { if inst.Labels == nil { inst.Labels = make(map[string]string) } - env := inst.Labels["envName"] + env := inst.Labels["env"] experiment := inst.Labels["experiment"] owner := inst.Labels["owner"] app := inst.Labels["app"] diff --git a/api-service/metrics/metrics_test.go b/api-service/metrics/metrics_test.go index 426b094..5544373 100644 --- a/api-service/metrics/metrics_test.go +++ b/api-service/metrics/metrics_test.go @@ -124,7 +124,7 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: fiveMinAgo, IP: "10.0.0.1", Labels: map[string]string{ - "envName": "terminal-0.1.0", + "env": "terminal-0.1.0", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -136,7 +136,7 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: fiveMinAgo, IP: "10.0.0.2", Labels: map[string]string{ - "envName": "terminal-0.1.0", + "env": "terminal-0.1.0", "experiment": "exp1", "owner": "jun", "app": "chatbot", @@ -148,8 +148,8 @@ func TestCollectorCollect(t *testing.T) { CreateTimestamp: now - 60*1000, // 1 min ago IP: "10.0.0.3", Labels: map[string]string{ - "envName": "swe-1.0.0", - "owner": "alice", + "env": "swe-1.0.0", + "owner": "alice", }, Status: "Running", }, diff --git a/api-service/service/faas_client.go b/api-service/service/faas_client.go index 90340b5..410b47e 100644 --- a/api-service/service/faas_client.go +++ b/api-service/service/faas_client.go @@ -43,12 +43,12 @@ func (c *FaaSClient) CreateEnvInstance(req *backend.Env) (*models.EnvInstance, e labels = labelMap } } - // Set "envName" label if not already provided by user + // Set "env" label if not already provided by user if labels == nil { labels = make(map[string]string) } - if _, exists := labels["envName"]; !exists { - labels["envName"] = functionName + if _, exists := labels["env"]; !exists { + labels["env"] = functionName } instanceId, err := c.CreateInstanceByFunction(functionName, dynamicRuntimeName, req.GetTTL(), labels) @@ -164,7 +164,7 @@ func (c *FaaSClient) DeleteEnvInstance(id string) error { func (c *FaaSClient) ListEnvInstances(envName string) ([]*models.EnvInstance, error) { labels := make(map[string]string) if envName != "" { - labels["envName"] = envName + labels["env"] = envName } resp, err := c.ListInstances(labels) diff --git a/api-service/service/faas_client_test.go b/api-service/service/faas_client_test.go index 4b6638b..988a8e3 100644 --- a/api-service/service/faas_client_test.go +++ b/api-service/service/faas_client_test.go @@ -31,10 +31,10 @@ func TestCreateEnvInstance_LabelsExtractedFromDeployConfig(t *testing.T) { wantApp: "evaluator", }, { - name: "user-provided labels with custom envName override", + name: "user-provided labels with custom env override", deployConfig: map[string]interface{}{ "labels": map[string]string{ - "envName": "custom-env", + "env": "custom-env", "experiment": "exp1", }, }, @@ -80,12 +80,12 @@ func TestCreateEnvInstance_LabelsExtractedFromDeployConfig(t *testing.T) { labels = make(map[string]string) } functionName := env.Name + "-" + env.Version - if _, exists := labels["envName"]; !exists { - labels["envName"] = functionName + if _, exists := labels["env"]; !exists { + labels["env"] = functionName } - if labels["envName"] != tt.wantEnvLabel { - t.Errorf("envName label = %q, want %q", labels["envName"], tt.wantEnvLabel) + if labels["env"] != tt.wantEnvLabel { + t.Errorf("env label = %q, want %q", labels["env"], tt.wantEnvLabel) } if tt.wantExperiment != "" && labels["experiment"] != tt.wantExperiment { t.Errorf("experiment label = %q, want %q", labels["experiment"], tt.wantExperiment) @@ -124,13 +124,13 @@ func TestCreateEnvInstance_LabelsSetOnResult(t *testing.T) { if labels == nil { labels = make(map[string]string) } - if _, exists := labels["envName"]; !exists { - labels["envName"] = env.Name + "-" + env.Version + if _, exists := labels["env"]; !exists { + labels["env"] = env.Name + "-" + env.Version } // Verify all expected labels expected := map[string]string{ - "envName": "test-v1", + "env": "test-v1", "experiment": "rl-training", "owner": "team-a", "app": "sandbox", From 8aa3e43ea7026b62e495cd16768061a360c69d60 Mon Sep 17 00:00:00 2001 From: meijun Date: Tue, 10 Mar 2026 15:03:08 +0800 Subject: [PATCH 16/19] fix(aenv,api-service): increase session retry to 3 and cap MCP body read - aenv: increase __aenter__ max_attempts from 2 to 3 for consistency with call_tool session retry logic - api-service: cap large body read at 1MB in MCPMetricsMiddleware to prevent memory exhaustion from abnormal requests; remove unused _req_body context key Co-Authored-By: Claude Opus 4.6 --- aenv/src/aenv/core/environment.py | 2 +- api-service/middleware/metrics.go | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/aenv/src/aenv/core/environment.py b/aenv/src/aenv/core/environment.py index 5d2c8b1..816cef2 100644 --- a/aenv/src/aenv/core/environment.py +++ b/aenv/src/aenv/core/environment.py @@ -202,7 +202,7 @@ async def _rebuild_mcp_client(self) -> None: async def __aenter__(self): """Async context manager entry.""" await self.initialize() - max_attempts = 2 + max_attempts = 3 for attempt in range(max_attempts): try: await self._ensure_mcp_session() diff --git a/api-service/middleware/metrics.go b/api-service/middleware/metrics.go index 8de9432..ee41e35 100644 --- a/api-service/middleware/metrics.go +++ b/api-service/middleware/metrics.go @@ -108,7 +108,10 @@ func MCPMetricsMiddleware() gin.HandlerFunc { if len(body) <= maxPeek { fullBody = body } else { - remaining, _ := io.ReadAll(c.Request.Body) + // Cap remaining read at 1MB to prevent memory exhaustion + // from abnormally large requests. + const maxBody = 1 << 20 + remaining, _ := io.ReadAll(io.LimitReader(c.Request.Body, maxBody)) fullBody = append(body, remaining...) } @@ -117,7 +120,6 @@ func MCPMetricsMiddleware() gin.HandlerFunc { return io.NopCloser(bytes.NewReader(fullBody)), nil } c.Request.ContentLength = int64(len(fullBody)) - c.Set("_req_body", fullBody) } } c.Set("_rpc_method", rpcMethod) From e9ef65991e07ee954c160e3bf5cdfca5234a2c29 Mon Sep 17 00:00:00 2001 From: meijun Date: Fri, 13 Mar 2026 22:24:44 +0800 Subject: [PATCH 17/19] optimize instance list --- api-service/Dockerfile | 2 +- api-service/main.go | 50 ++++++++++++++++++++++---- api-service/metrics/collector.go | 48 +++++++++++++++++++++++-- api-service/service/cleanup_service.go | 6 ++++ 4 files changed, 97 insertions(+), 9 deletions(-) diff --git a/api-service/Dockerfile b/api-service/Dockerfile index 9e5799c..2394cd0 100644 --- a/api-service/Dockerfile +++ b/api-service/Dockerfile @@ -44,7 +44,7 @@ WORKDIR /workspace # Runtime stage FROM alpine:3.20 -RUN apk add --no-cache ca-certificates tzdata +RUN apk add --no-cache ca-certificates tzdata bash COPY --from=builder /workspace/api-service/api-service /usr/bin/api-service diff --git a/api-service/main.go b/api-service/main.go index 36abfe1..d8862a0 100644 --- a/api-service/main.go +++ b/api-service/main.go @@ -18,6 +18,7 @@ limitations under the License. package main import ( + "math/rand" "net/http" "runtime" "time" @@ -169,18 +170,55 @@ func main() { } cleanManager := service.NewAEnvCleanManager(scheduleClient, interval). WithMetrics(middleware.IncrementCleanupSuccess, middleware.IncrementCleanupFailure) - go cleanManager.Start() - defer cleanManager.Stop() - // Start metrics collector for instance metrics (faas mode only) + // Start a unified periodic task that shares a single ListEnvInstances call + // across cleanup and metrics collection, reducing redundant requests to meta-service. if scheduleType == "faas" { if faasClient, ok := scheduleClient.(*service.FaaSClient); ok { - metricsCollector := metrics.NewCollector(faasClient, 5*time.Minute) - go metricsCollector.Start() - defer metricsCollector.Stop() + metricsCollector := metrics.NewCollector(faasClient, interval) + go startUnifiedPeriodicTask(scheduleClient, cleanManager, metricsCollector, interval) + } else { + go cleanManager.Start() } + } else { + go cleanManager.Start() } // Block main goroutine select {} } + +// startUnifiedPeriodicTask runs cleanup and metrics collection in a single ticker loop, +// sharing one ListEnvInstances call per cycle. A random jitter at startup disperses +// the tick phase across multiple api-service replicas to avoid thundering herd. +func startUnifiedPeriodicTask( + envInstanceService service.EnvInstanceService, + cleanManager *service.AEnvCleanManager, + metricsCollector *metrics.Collector, + interval time.Duration, +) { + // Random jitter to stagger tickers across replicas + jitter := time.Duration(rand.Int63n(int64(interval))) + log.Infof("Unified periodic task: starting after jitter %v (interval %v)", jitter, interval) + time.Sleep(jitter) + + runOnce := func() { + envInstances, err := envInstanceService.ListEnvInstances("") + if err != nil { + log.Warnf("Unified periodic task: failed to list instances: %v", err) + return + } + + // Feed the same data to both consumers + cleanManager.CleanupFromInstances(envInstances) + metricsCollector.CollectFromEnvInstances(envInstances) + } + + runOnce() + + ticker := time.NewTicker(interval) + defer ticker.Stop() + for range ticker.C { + runOnce() + } +} diff --git a/api-service/metrics/collector.go b/api-service/metrics/collector.go index 29f2ba9..25fe78e 100644 --- a/api-service/metrics/collector.go +++ b/api-service/metrics/collector.go @@ -17,6 +17,7 @@ limitations under the License. package metrics import ( + "api-service/models" "api-service/service/faas_model" "time" @@ -77,12 +78,18 @@ func (c *Collector) collect() { return } + c.CollectFromInstances(resp.Instances) +} + +// CollectFromInstances updates metrics from a pre-fetched instance list. +// This allows callers to share the same ListInstances result across multiple consumers. +func (c *Collector) CollectFromInstances(instances []*faas_model.Instance) { // Reset gauges to avoid stale data from deleted instances ActiveInstances.Reset() InstanceUptimeSeconds.Reset() now := time.Now().UnixMilli() - for _, inst := range resp.Instances { + for _, inst := range instances { if inst.Labels == nil { inst.Labels = make(map[string]string) } @@ -103,5 +110,42 @@ func (c *Collector) collect() { } } - log.Infof("metrics collector: updated metrics for %d instances", len(resp.Instances)) + log.Infof("metrics collector: updated metrics for %d instances", len(instances)) +} + +// CollectFromEnvInstances updates metrics from a pre-fetched EnvInstance list. +// This handles the type difference between models.EnvInstance (used by ListEnvInstances) +// and faas_model.Instance (used by FaaSClient.ListInstances). +func (c *Collector) CollectFromEnvInstances(envInstances []*models.EnvInstance) { + ActiveInstances.Reset() + InstanceUptimeSeconds.Reset() + + now := time.Now() + for _, inst := range envInstances { + labels := inst.Labels + if labels == nil { + labels = make(map[string]string) + } + env := labels["env"] + experiment := labels["experiment"] + owner := labels["owner"] + app := labels["app"] + + ActiveInstances.WithLabelValues(env, experiment, owner, app).Inc() + + if inst.CreatedAt != "" { + createdAt, err := time.Parse(time.DateTime, inst.CreatedAt) + if err != nil { + createdAt, err = time.Parse(time.RFC3339, inst.CreatedAt) + } + if err == nil { + uptimeSec := now.Sub(createdAt).Seconds() + InstanceUptimeSeconds.WithLabelValues( + inst.ID, env, experiment, owner, app, + ).Set(uptimeSec) + } + } + } + + log.Infof("metrics collector: updated metrics for %d env instances", len(envInstances)) } diff --git a/api-service/service/cleanup_service.go b/api-service/service/cleanup_service.go index 5af8614..3a3003a 100644 --- a/api-service/service/cleanup_service.go +++ b/api-service/service/cleanup_service.go @@ -92,6 +92,12 @@ func (cm *AEnvCleanManager) performCleanup() { return } + cm.CleanupFromInstances(envInstances) +} + +// CleanupFromInstances performs TTL-based cleanup on a pre-fetched instance list. +// This allows callers to share the same ListEnvInstances result across multiple consumers. +func (cm *AEnvCleanManager) CleanupFromInstances(envInstances []*models.EnvInstance) { if len(envInstances) == 0 { log.Debug("No environment instances found") return From 84b50f6f59bf32eee65d37271b7be9b749808da4 Mon Sep 17 00:00:00 2001 From: meijun Date: Sat, 14 Mar 2026 17:36:24 +0800 Subject: [PATCH 18/19] remove unused cleanup --- aenv/src/aenv/core/environment.py | 6 ++- api-service/service/cleanup_service_test.go | 4 -- api-service/service/env_instance.go | 52 --------------------- api-service/service/faas_client.go | 4 -- api-service/service/schedule_client.go | 35 -------------- 5 files changed, 4 insertions(+), 97 deletions(-) diff --git a/aenv/src/aenv/core/environment.py b/aenv/src/aenv/core/environment.py index 816cef2..24ed841 100644 --- a/aenv/src/aenv/core/environment.py +++ b/aenv/src/aenv/core/environment.py @@ -175,11 +175,13 @@ def __init__( self._CIRCUIT_BREAKER_THRESHOLD = 5 def _log_prefix(self) -> str: - """Get log prefix with instance ID.""" + """Get log prefix with instance ID and SDK version.""" + from aenv import __version__ + instance_id = ( getattr(self._instance, "id", "None") if self._instance else "None" ) - return f"[ENV:{instance_id}]" + return f"[ENV:{instance_id}][sdk:v{__version__}]" async def _backoff(self, attempt: int, base: float = 2.0) -> None: """Exponential backoff with jitter.""" diff --git a/api-service/service/cleanup_service_test.go b/api-service/service/cleanup_service_test.go index c31071f..cdd94db 100644 --- a/api-service/service/cleanup_service_test.go +++ b/api-service/service/cleanup_service_test.go @@ -62,10 +62,6 @@ func (m *MockEnvInstanceService) Warmup(req *backend.Env) error { return nil } -func (m *MockEnvInstanceService) Cleanup() error { - return nil -} - // TestPerformCleanupNoInstances tests cleanup when there are no env instances func TestPerformCleanupNoInstances(t *testing.T) { // Create mock service that returns empty list diff --git a/api-service/service/env_instance.go b/api-service/service/env_instance.go index 5de87cf..7a893b5 100644 --- a/api-service/service/env_instance.go +++ b/api-service/service/env_instance.go @@ -24,7 +24,6 @@ type EnvInstanceService interface { DeleteEnvInstance(id string) error ListEnvInstances(envName string) ([]*models.EnvInstance, error) Warmup(req *backend.Env) error - Cleanup() error } type EnvInstanceClient struct { @@ -304,57 +303,6 @@ func (c *EnvInstanceClient) Warmup(req *backend.Env) error { return nil } -// Cleanup performs a cleanup operation to release unused environment resources. -// -// Parameters: -// - None -// -// Returns: -// - error: nil if cleanup is successful; otherwise, an error indicating failure. -func (c *EnvInstanceClient) Cleanup() error { - url := fmt.Sprintf("%s/%s/action/cleanup", c.baseURL, AEnvOpenAPIInstance) - - httpReq, err := http.NewRequest("PUT", url, nil) - if err != nil { - return fmt.Errorf("cleanup env: failed to create request: %v", err) - } - - resp, err := c.httpClient.Do(httpReq) - if err != nil { - return fmt.Errorf("cleanup env: failed to send request: %v", err) - } - defer func() { - if closeErr := resp.Body.Close(); closeErr != nil { - log.Warnf("failed to close response body: %v", closeErr) - } - }() - - body, err := io.ReadAll(resp.Body) - if err != nil { - return fmt.Errorf("cleanup env: failed to read response body: %v", err) - } - - if resp.StatusCode != http.StatusOK { - return fmt.Errorf("cleanup env: request failed with status %d: %s", resp.StatusCode, truncateBody(body)) - } - - var getResp models.ClientResponse[models.EnvInstance] - if err := json.Unmarshal(body, &getResp); err != nil { - return fmt.Errorf("cleanup env: failed to unmarshal response: %v", err) - } - - if !getResp.Success { - // Include both code and message in error - errMsg := fmt.Sprintf("cleanup env: server returned error, code: %d", getResp.Code) - if getResp.Message != "" { - errMsg = fmt.Sprintf("cleanup env: server returned error (code %d): %s", getResp.Code, getResp.Message) - } - return fmt.Errorf("%s", errMsg) - } - - return nil -} - // truncateBody truncate body for memory protection func truncateBody(body []byte) string { const maxLen = 500 diff --git a/api-service/service/faas_client.go b/api-service/service/faas_client.go index 410b47e..d0acc05 100644 --- a/api-service/service/faas_client.go +++ b/api-service/service/faas_client.go @@ -237,10 +237,6 @@ func (c *FaaSClient) WarmupAsyncChan(req *backend.Env) <-chan error { return resultCh } -func (c *FaaSClient) Cleanup() error { - return fmt.Errorf("cleanup not implemented in faas") -} - // --- Newly added local method implementations --- func (c *FaaSClient) CreateFunction(in *faas_model.FunctionCreateOrUpdateRequest) error { diff --git a/api-service/service/schedule_client.go b/api-service/service/schedule_client.go index 02e7417..63e20b5 100644 --- a/api-service/service/schedule_client.go +++ b/api-service/service/schedule_client.go @@ -607,38 +607,3 @@ func (c *ScheduleClient) ListEnvInstances(envName string) ([]*models.EnvInstance func (c *ScheduleClient) Warmup(req *backend.Env) error { return fmt.Errorf("warmup is not implemented") } - -func (c *ScheduleClient) Cleanup() error { - log.Infof("Starting cleanup task...") - // get all EnvInstance - envInstances, err := c.FilterPods() - if err != nil { - return fmt.Errorf("failed to get env instances: %v", err) - } - if envInstances == nil || len(*envInstances) == 0 { - log.Infof("No env instances found") - return nil - } - - var deletedCount int - - for _, instance := range *envInstances { - // skip terminated env instance - if instance.Status == "Terminated" { - continue - } - deleted, err := c.DeletePod(instance.ID) - if err != nil { - log.Warnf("Failed to delete instance %s: %v", instance.ID, err) - continue - } - if deleted { - deletedCount++ - log.Infof("Successfully deleted instance %s", instance.ID) - } else { - log.Infof("Instance %s was not deleted (may already be deleted)", instance.ID) - } - } - log.Infof("Cleanup task completed. Deleted %d expired instances", deletedCount) - return nil -} From ba84480ac93fbfcc00e65b24aa3ada9f3f0e87e9 Mon Sep 17 00:00:00 2001 From: meijun Date: Sat, 14 Mar 2026 23:34:16 +0800 Subject: [PATCH 19/19] upgrade sdk to 0.1.6 --- aenv/pyproject.toml | 2 +- aenv/src/aenv/__init__.py | 2 +- aenv/uv.lock | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/aenv/pyproject.toml b/aenv/pyproject.toml index acdacc0..a868733 100644 --- a/aenv/pyproject.toml +++ b/aenv/pyproject.toml @@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta" [project] name = "aenvironment" -version = "0.1.6rc1" +version = "0.1.6" description = "AEnvironment Python SDK - Production-grade environment for AI agent tools" readme = "README.md" requires-python = ">=3.10" diff --git a/aenv/src/aenv/__init__.py b/aenv/src/aenv/__init__.py index 5f960bd..95019e6 100644 --- a/aenv/src/aenv/__init__.py +++ b/aenv/src/aenv/__init__.py @@ -35,7 +35,7 @@ from aenv.core.models import EnvInstance, EnvStatus from aenv.core.tool import Tool, get_registry, register_tool -__version__ = "0.1.5" +__version__ = "0.1.6" __all__ = [ "Tool", "register_tool", diff --git a/aenv/uv.lock b/aenv/uv.lock index c4521a7..479781c 100644 --- a/aenv/uv.lock +++ b/aenv/uv.lock @@ -20,7 +20,7 @@ wheels = [ [[package]] name = "aenvironment" -version = "0.1.6rc1" +version = "0.1.6" source = { editable = "." } dependencies = [ { name = "anyio" },