chore: SAP HANA mixin modernization

sap-hana-mixin/alerts.libsonnet

@@ -0,0 +1,138 @@
+{
+  new(this): {
+    local config = this.config,
+    groups: [
+      {
+        name: 'sap-hana-alerts',
+        rules: [
+          {
+            alert: 'SapHanaHighCpuUtilization',
+            expr: |||
+              sum without (database_name) (hanadb_cpu_busy_percent{%(filteringSelector)s}) > %(alertsCriticalHighCpuUsage)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'CPU utilization is high.',
+              description: (
+                'The CPU usage is at {{ printf "%%.2f" $value }}%% on {{$labels.core}} on {{$labels.host}} which is above the threshold of %(alertsCriticalHighCpuUsage)s%%.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaHighPhysicalMemoryUsage',
+            expr: |||
+              100 * sum by (job, sid, host)(hanadb_host_memory_resident_mb{%(filteringSelector)s}) / sum by (job, sid, host) (hanadb_host_memory_physical_total_mb{%(filteringSelector)s}) > %(alertsCriticalHighPhysicalMemoryUsage)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'Current physical memory usage of the host is approaching capacity.',
+              description: (
+                'The physical memory usage is at {{ printf "%%.2f" $value }}%% on {{$labels.host}} which is above the threshold of %(alertsCriticalHighPhysicalMemoryUsage)s%%.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaMemAllocLimitBelowRecommendation',
+            expr: |||
+              100 * sum by (job, sid, host) (hanadb_host_memory_alloc_limit_mb{%(filteringSelector)s}) / sum by (job, sid, host) (hanadb_host_memory_physical_total_mb{%(filteringSelector)s}) < %(alertsWarningLowMemAllocLimit)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'warning',
+            },
+            annotations: {
+              summary: 'Memory allocation limit set below recommended limit.',
+              description: (
+                'The memory allocation limit is set at {{ printf "%%.2f" $value }}%% on {{$labels.host}} which is below the recommended value of %(alertsWarningLowMemAllocLimit)s%%.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaHighMemoryUsage',
+            expr: |||
+              100 * sum by (job, sid, host) (hanadb_host_memory_used_total_mb{%(filteringSelector)s}) / sum by (job, sid, host) (hanadb_host_memory_alloc_limit_mb{%(filteringSelector)s}) > %(alertsCriticalHighMemoryUsage)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'Current SAP HANA memory usage is approaching capacity.',
+              description: (
+                'The memory usage is at {{ printf "%%.2f" $value }}%% on {{$labels.host}} which is above the threshold of %(alertsCriticalHighMemoryUsage)s%%.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaHighDiskUtilization',
+            expr: |||
+              100 * sum by (job, sid, host) (hanadb_disk_total_used_size_mb{%(filteringSelector)s}) / sum by (job, sid, host) (hanadb_disk_total_size_mb{%(filteringSelector)s}) > %(alertsCriticalHighDiskUtilization)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'SAP HANA disk is approaching capacity.',
+              description: (
+                'The disk usage is at {{ printf "%%.2f" $value }}%% on {{$labels.host}} which is above the threshold of %(alertsCriticalHighDiskUtilization)s%%.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaHighSqlExecutionTime',
+            expr: |||
+              avg without (database_name, port, service, sql_type) (hanadb_sql_service_elap_per_exec_avg_ms{%(filteringSelector)s}) / 1000 > %(alertsCriticalHighSqlExecutionTime)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'SAP HANA SQL average execution time is high.',
+              description: (
+                'The average SQL execution time is at {{ printf "%%.2f" $value }}s on {{$labels.host}} which is above the threshold of %(alertsCriticalHighSqlExecutionTime)ss.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaHighReplicationShippingTime',
+            expr: |||
+              avg without (database_name, port, secondary_port, replication_mode) (hanadb_sr_ship_delay{%(filteringSelector)s}) > %(alertsCriticalHighReplicationShippingTime)s
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'SAP HANA system replication log shipping delay is high.',
+              description: (
+                'The average system replication log shipping delay is at {{ printf "%%.2f" $value }}s from primary site {{$labels.site_name}} to replica site {{$labels.secondary_site_name}} which is above the threshold of %(alertsCriticalHighReplicationShippingTime)ss.'
+              ) % config,
+            },
+          },
+          {
+            alert: 'SapHanaReplicationStatusError',
+            expr: |||
+              hanadb_sr_replication{%(filteringSelector)s} == 4
+            ||| % config,
+            'for': '5m',
+            labels: {
+              severity: 'critical',
+            },
+            annotations: {
+              summary: 'SAP HANA system replication status signifies an error.',
+              description: 'The replication status of replica {{$labels.secondary_site_name}} is ERROR',
+            },
+          },
+        ],
+      },
+    ],
+  },
+}

sap-hana-mixin/config.libsonnet

@@ -1,19 +1,43 @@
 {
-  _config+:: {
-    dashboardTags: ['sap-hana-mixin'],
-    dashboardPeriod: 'now-1h',
-    dashboardTimezone: 'default',
-    dashboardRefresh: '1m',
-
-    // alerts thresholds
-    alertsCriticalHighCpuUsage: 80,  // percent 0-100
-    alertsCriticalHighPhysicalMemoryUsage: 80,  // percent 0-100
-    alertsWarningLowMemAllocLimit: 90,  // percent 0-100
-    alertsCriticalHighMemoryUsage: 80,  // percent 0-100
-    alertsCriticalHighDiskUtilization: 80,  //percent 0-100
-    alertsCriticalHighSqlExecutionTime: 1,  // second
-    alertsCriticalHighReplicationShippingTime: 1,  //second
-
-    enableLokiLogs: true,
+  local this = self,
+
+  // Filtering and label configuration
+  filteringSelector: '',  // set to apply static filters to all queries and alerts, i.e. job="bar"
+
+  groupLabels: ['job', 'sid'],
+  instanceLabels: ['host'],
+
+  // Dashboard configuration
+  uid: 'sap-hana',
+  dashboardNamePrefix: 'SAP HANA',
+  dashboardTags: ['sap-hana-mixin'],
+  dashboardPeriod: 'now-1h',
+  dashboardTimezone: 'default',
+  dashboardRefresh: '1m',
+
+  // Alert thresholds
+  alertsCriticalHighCpuUsage: 80,  // percent 0-100
+  alertsCriticalHighPhysicalMemoryUsage: 80,  // percent 0-100
+  alertsWarningLowMemAllocLimit: 90,  // percent 0-100
+  alertsCriticalHighMemoryUsage: 80,  // percent 0-100
+  alertsCriticalHighDiskUtilization: 80,  // percent 0-100
+  alertsCriticalHighSqlExecutionTime: 1,  // second
+  alertsCriticalHighReplicationShippingTime: 1,  // second
+
+  // Loki logs configuration
+  enableLokiLogs: true,
+  extraLogLabels: ['level'],
+  logsVolumeGroupBy: 'level',
+  showLogsVolume: true,
+
+
+  // Metrics source for signals
+  metricsSource: ['prometheus'],
+
+  // Signal definitions
+  signals: {
+    system: (import './signals/system.libsonnet')(this),
+    instance: (import './signals/instance.libsonnet')(this),
+    performance: (import './signals/performance.libsonnet')(this),
   },
 }