Improve error reporting in final JSON results

.gitignore

@@ -1,3 +1,4 @@
 .DS_Store
 output/*
+!output/.gitkeep
 stellar-rpc-blaster

cmd/main.go

@@ -50,6 +50,7 @@ func makeCommands() *cobra.Command {
 				cmd.Flags().Lookup("test-output-path"),
 				cmd.Flags().Lookup("input-data-path"),
 				cmd.Flags().Lookup("serial"),
+				cmd.Flags().Lookup("error-percent"),
 			)
 			settings.Mode = config.Run
 			settings.Ctx = cmd.Context()
@@ -86,12 +87,13 @@ func makeCommands() *cobra.Command {
 	commonFlags.String("rpc-url", "", "Target RPC server URL")
 
 	runCmd.Flags().String("config-path", "", "Path to config TOML file")
-	runCmd.Flags().String("test-output-path", "./output/load-test-results.json", "Path to export metrics output file")
+	runCmd.Flags().String("test-output-path", "./output", "Base directory for run output (logs and results)")
 	runCmd.Flags().String("input-data-path", "", "Path to seed data file output by generate, required for data-dependent endpoints")
 	runCmd.Flags().Duration("duration", time.Duration(0), "Duration to run the test (e.g., 5m)")
 	runCmd.Flags().Duration("ramp-up", time.Duration(0), "Ramp-up time before reaching target RPS (e.g., 30s)")
 	runCmd.Flags().Duration("step-interval", time.Second*5, "Interval between steps during the test (e.g., 5s)")
 	runCmd.Flags().Bool("serial", false, "Run endpoints one at a time sequentially instead of concurrently")
+	runCmd.Flags().Int("error-percent", 50, "Threshold for error percentage to kill the test (e.g. 50 means kill at 50%)")
 
 	generateCmd.Flags().String("output", "./output/seed.json", "Path to seed data file output by generate")
 	generateCmd.Flags().String("ledger-window", "", "Ledger range as START[,END] for data generation")
@@ -116,6 +118,7 @@ func bindRunCliParameters(
 	testOutputPath *pflag.Flag,
 	inputDataPath *pflag.Flag,
 	serial *pflag.Flag,
+	errorPercent *pflag.Flag,
 ) config.RuntimeSettings {
 	bindFlag := func(flag *pflag.Flag) {
 		viper.BindPFlag(flag.Name, flag)
@@ -129,7 +132,7 @@ func bindRunCliParameters(
 	bindFlag(testOutputPath)
 	bindFlag(inputDataPath)
 	bindFlag(serial)
-
+	bindFlag(errorPercent)
 	settings := config.RuntimeSettings{}
 	settings.ConfigPath = viper.GetString(cfgPath.Name)
 	settings.RpcUrl = viper.GetString(rpcUrl.Name)
@@ -139,6 +142,7 @@ func bindRunCliParameters(
 	settings.TestOutputPath = viper.GetString(testOutputPath.Name)
 	settings.InputDataPath = viper.GetString(inputDataPath.Name)
 	settings.Serial = viper.GetBool(serial.Name)
+	settings.ErrorPercent = viper.GetInt(errorPercent.Name)
 
 	return settings
 }

go.mod

@@ -14,78 +14,79 @@ require (
 require (
 	cel.dev/expr v0.25.1 // indirect
 	cloud.google.com/go v0.123.0 // indirect
-	cloud.google.com/go/auth v0.18.2 // indirect
+	cloud.google.com/go/auth v0.20.0 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.9.0 // indirect
-	cloud.google.com/go/iam v1.5.3 // indirect
-	cloud.google.com/go/monitoring v1.24.3 // indirect
-	cloud.google.com/go/storage v1.61.3 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.31.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.55.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.55.0 // indirect
+	cloud.google.com/go/iam v1.8.0 // indirect
+	cloud.google.com/go/monitoring v1.26.0 // indirect
+	cloud.google.com/go/storage v1.62.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.32.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.56.0 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.56.0 // indirect
 	github.com/aws/aws-sdk-go v1.55.8 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cncf/xds/go v0.0.0-20260202195803-dba9d589def2 // indirect
-	github.com/creachadair/mds v0.26.1 // indirect
+	github.com/creachadair/mds v0.26.2 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/djherbis/fscache v0.10.1 // indirect
 	github.com/envoyproxy/go-control-plane/envoy v1.37.0 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.3.3 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/go-errors/errors v1.5.1 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
 	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.14 // indirect
-	github.com/googleapis/gax-go/v2 v2.19.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.21.0 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/influxdata/tdigest v0.0.1 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/klauspost/compress v1.18.5 // indirect
 	github.com/mailru/easyjson v0.9.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
+	github.com/pelletier/go-toml/v2 v2.3.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/rs/dnscache v0.0.0-20230804202142-fc85eb664529 // indirect
 	github.com/sagikazarmark/locafero v0.12.0 // indirect
 	github.com/segmentio/go-loggly v0.5.1-0.20171222203950-eb91657e62b2 // indirect
+	github.com/sirupsen/logrus v1.9.4 // indirect
 	github.com/spf13/afero v1.15.0 // indirect
 	github.com/spf13/cast v1.10.0 // indirect
 	github.com/spiffe/go-spiffe/v2 v2.6.0 // indirect
 	github.com/stellar/go-xdr v0.0.0-20260312225820-cc2b0611aabf // indirect
 	github.com/stretchr/objx v0.5.3 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/detectors/gcp v1.42.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.67.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.67.0 // indirect
-	go.opentelemetry.io/otel v1.42.0 // indirect
-	go.opentelemetry.io/otel/metric v1.42.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.42.0 // indirect
-	go.opentelemetry.io/otel/sdk/metric v1.42.0 // indirect
-	go.opentelemetry.io/otel/trace v1.42.0 // indirect
+	go.opentelemetry.io/contrib/detectors/gcp v1.43.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.68.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 // indirect
+	go.opentelemetry.io/otel v1.43.0 // indirect
+	go.opentelemetry.io/otel/metric v1.43.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.43.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.43.0 // indirect
+	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/crypto v0.49.0 // indirect
-	golang.org/x/exp v0.0.0-20260312153236-7ab1446f8b90 // indirect
-	golang.org/x/net v0.52.0 // indirect
+	golang.org/x/crypto v0.50.0 // indirect
+	golang.org/x/exp v0.0.0-20260410095643-746e56fc9e2f // indirect
+	golang.org/x/net v0.53.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
 	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/sys v0.42.0 // indirect
-	golang.org/x/text v0.35.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/text v0.36.0 // indirect
 	golang.org/x/time v0.15.0 // indirect
-	google.golang.org/api v0.272.0 // indirect
-	google.golang.org/genproto v0.0.0-20260319201613-d00831a3d3e7 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260319201613-d00831a3d3e7 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260319201613-d00831a3d3e7 // indirect
-	google.golang.org/grpc v1.79.3 // indirect
+	google.golang.org/api v0.275.0 // indirect
+	google.golang.org/genproto v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/grpc v1.80.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/djherbis/atime.v1 v1.0.0 // indirect
 	gopkg.in/djherbis/stream.v1 v1.3.1 // indirect
@@ -95,7 +96,6 @@ require (
 
 require (
 	github.com/HdrHistogram/hdrhistogram-go v1.2.0
-	github.com/sirupsen/logrus v1.9.4
-	github.com/stellar/go-stellar-sdk v0.3.0
+	github.com/stellar/go-stellar-sdk v0.5.0
 	github.com/tsenart/vegeta/v12 v12.13.0
 )