[Bug] PagerDuty Alert - Memory Leak

[nirmash]

Summary for demowebappebc
Initial average availability was 91.7%, below the healthy threshold.
Last 5 minutes' availability was consistently 100%.
CPU, memory, and thread metrics were all healthy (no spikes or anomalies).
No deployment swaps were detected during the downtime window.
Application code exceptions were detected with a full stack trace provided.
Console logs could not be retrieved due to insufficient permissions (Monitoring Metrics Publisher needed).
Root cause: Application code exceptions.
Mitigation: Monitored app health for 10 minutes. Availability fully recovered to 100%.
🎉 demowebappebc is now back to optimal health! If you need further investigation or code review, please address the application exceptions found in the stack trace.

{
"client": "Common Azure Monitor Alert",
"client_url": "https://ms.portal.azure.com/#blade/Microsoft_Azure_Monitoring/AlertDetailsTemplateBlade/alertId//subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/providers/Microsoft.AlertsManagement/alerts/c5799ea9-2e20-424f-a0a1-4c990c04f000",
"contexts": null,
"description": "Site Errors",
"event_type": "trigger",
"incident_key": "/subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/providers/Microsoft.AlertsManagement/alerts/c5799ea9-2e20-424f-a0a1-4c990c04f000",
"service_key": "bc6c9a8443074309d0e680746d32fb27",
"details": {
"condition": {
"allOf": [
{
"dimensions": [],
"metricName": "Http5xx",
"metricNamespace": "Microsoft.Web/sites",
"metricValue": 76,
"operator": "GreaterThan",
"threshold": "50",
"timeAggregation": "Total",
"webTestName": null
}
],
"staticThresholdFailingPeriods": {
"minFailingPeriodsToAlert": 0,
"numberOfEvaluationPeriods": 0
},
"windowEndTime": "2025-05-05T21:27:41.649Z",
"windowSize": "PT5M",
"windowStartTime": "2025-05-05T21:22:41.649Z"
},
"conditionType": "SingleResourceMultipleMetricCriteria",
"essentials": {
"alertContextVersion": "1.0",
"alertId": "/subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/providers/Microsoft.AlertsManagement/alerts/c5799ea9-2e20-424f-a0a1-4c990c04f000",
"alertRule": "Site Errors",
"alertRuleID": "/subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/resourceGroups/nimashkowski_rg_2564/providers/microsoft.insights/metricAlerts/Site Errors",
"alertTargetIDs": [
"/subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/resourcegroups/nimashkowski_rg_2564/providers/microsoft.web/sites/demowebappebc"
],
"configurationItems": [
"demowebappebc"
],
"description": "",
"essentialsVersion": "1.0",
"firedDateTime": "2025-05-05T21:29:52.9519894Z",
"investigationLink": "https://portal.azure.com/#view/Microsoft_Azure_Monitoring_Alerts/Investigation.ReactView/alertId//subscriptions/93cba93f-571e-44e9-ac0a-a2987b58848c/resourceGroups/nimashkowski_rg_2564/providers/Microsoft.AlertsManagement/alerts/c5799ea9-2e20-424f-a0a1-4c990c04f000",
"monitorCondition": "Fired",
"monitoringService": "Platform",
"originAlertId": "93cba93f-571e-44e9-ac0a-a2987b58848c_nimashkowski_rg_2564_microsoft.insights_metricAlerts_Site Errors_-1216086645",
"severity": "Sev1",
"signalType": "Metric",
"targetResourceGroup": "nimashkowski_rg_2564",
"targetResourceType": "microsoft.web/sites"
},
"properties": null
}
}