HealthStateChangeEvent

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Reference for HealthStateChangeEvent table in Azure Monitor Logs.

Attribute	Value
Category	-
Basic Logs Eligible	✗ No (source)
Supports Transformations	✓ Yes (source)
Ingestion API Supported	✗ No
Azure Monitor Tables Reference	View Documentation

Schema
Schema References
Resource Types

Schema (21 columns)

Source: Azure Monitor documentation

| Column Name | Type | Description | |:------------|:-----|:------------| | _BilledSize | real | The record size in bytes | | _IsBillable | string | Specifies whether ingesting the data is billable. When _IsBillable is false ingestion isn't billed to your Azure account | | _ResourceId | string | A unique identifier for the resource that the record is associated with | | _SubscriptionId | string | A unique identifier for the subscription that the record is associated with | | CurrentMonitorState | string | Current state of the monitor (Critical, Warning, Healthy, Unknown, None). | | CurrentStateFirstObservedTimestamp | datetime | Timestamp (UTC) when the current state of the monitor was first observed. | | EvaluationTimestamp | datetime | Timestamp (UTC) when the monitor health state change event was created. | | Evidence | dynamic | Snapshot of samples and reason the monitor changed state. | | ImpactStartTimestamp | datetime | Timestamp (UTC) the monitor start change to non-healthy (Critical, Warning) state. | | InstrumentationData | dynamic | Current state of the monitor (Critical, Warning, Healthy, Unknown, None). | | MonitorConfiguration | dynamic | Configuration for the monitor. Aggregate monitor configuration is an empty string. | | MonitoredObject | string | Object the monitor is monitoring. Values only exist for dynamic monitors, e.g. D: for monitor logical-disks|D:|free-space-mb. | | MonitorName | string | Name of the monitor, e.g. logical-disks|C:|free-space-mb for Windows platform, filesystems|/var/lib|free-space-mb for Linux platform. | | MonitorResourceId | string | ARM resource id of the monitor. | | MonitorType | string | Type of the monitor. Same as the monitor name for static monitors, replaces MonitoredObject with * for dynamic monitors. | | ParentMonitorName | string | Parent monitor name, e.g. logical-disks|C: for Windows platform, filesystems for Linux platform. | | PreviousMonitorState | string | Previous state of the monitor (Critical, Warning, Healthy, Unknown, None). | | SourceSystem | string | The type of agent the event was collected by. For example, OpsManager for Windows agent, either direct connect or Operations Manager, Linux for all Linux agents, or Azure for Azure Diagnostics | | TenantId | string | The Log Analytics workspace ID | | TimeGenerated | datetime | Timestamp (UTC) when the record was generated. | | Type | string | The name of the table |

Schema References

Official Microsoft Learn documentation for field/column information:

HealthStateChangeEvent Schema Reference (Azure Monitor)

Resource Types

This table collects data from the following Azure resource types: