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The following table lists the metrics available for the Microsoft.HorizonDB/clusters resource type.
Table headings
- Metric - The metric display name as it appears in the Azure portal.
- Name in Rest API - Metric name as referred to in the REST API.
- Advanced platform metrics - A premium, paid tier of platform metrics in Azure Monitor that provide more granular observability for Azure resources.
- Unit - Unit of measure.
- Aggregation - The default aggregation type. Valid values: Average, Minimum, Maximum, Total, Count.
- Dimensions - Dimensions available for the metric.
- Time Grains - Intervals at which the metric is sampled. For example,
PT1Mindicates that the metric is sampled every minute,PT30Mevery 30 minutes,PT1Hevery hour, and so on. - DS Export -S Whether the metric is exportable to Azure Monitor Logs via Diagnostic Settings.
For information on exporting metrics, see - Create diagnostic settings in Azure Monitor.
For information on metric retention, see Azure Monitor Metrics overview.
Category: Activity
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Active Connections Active Database Connections |
ActiveConnections |
No | Count | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
| Succeeded Connections Succeeded Connections |
ConnectionsSucceeded |
No | Count | Total (Sum) | ReplicaName |
PT1M | No |
| Query Store Flush Status Indicates if the last query store flush succeeded (1) or failed (0) |
QueryStoreFlushStatus |
No | Count | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
| Total Transactions Number of total transactions executed in this database |
TotalTransactions |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Transactions Committed Number of transactions in this database that have been committed |
TransactionsCommitted |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Transactions per Second Number of transactions executed within a second |
TransactionsPerSecond |
No | Count | Minimum, Maximum, Total (Sum) | ReplicaName |
PT1M | No |
| Transactions Rolled Back Number of transactions in this database that have been rolled back |
TransactionsRolledBack |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Tuples Deleted Number of rows deleted by queries in this database |
TuplesDeleted |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Tuples Fetched Number of rows fetched by queries in this database |
TuplesFetched |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Tuples Inserted Number of rows inserted by queries in this database |
TuplesInserted |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Tuples Returned Number of rows returned by queries in this database |
TuplesReturned |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Tuples Updated Number of rows updated by queries in this database |
TuplesUpdated |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
Category: Compute
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| CPU percent Host CPU utilization percent |
CpuPercent |
No | Percent | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
| Memory percent Host memory utilization percent |
MemoryPercent |
No | Percent | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
Category: Concurrency
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Deadlocks Number of deadlocks that are detected in this database |
Deadlocks |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | Yes |
| Max Connections Maximum Database connections configured in server parameters |
MaxConnections |
No | Count | Maximum | ReplicaName |
PT30M, PT1H, PT6H, PT12H, P1D | No |
| Oldest Backend Age in seconds of the oldest backend (irrespective of the state) |
OldestBackend |
No | Seconds | Maximum | ReplicaName |
PT1M | No |
| Oldest Query Age in seconds of the longest query that's currently running |
OldestQuery |
No | Seconds | Maximum | ReplicaName |
PT1M | No |
| Oldest Transaction Age in seconds of the longest query that's currently running |
OldestTransaction |
No | Seconds | Maximum | ReplicaName |
PT1M | No |
| Oldest xmin The actual value of the oldest xmin. If xmin isn't increasing, it indicates that there are some long-running transactions that can potentially hold dead tuples from being removed. |
OldestXmin |
No | Count | Maximum | ReplicaName |
PT1M | No |
| Oldest xmin Age Age in units of the oldest xmin. Indicates how many transactions passed since the oldest |
OldestXminAge |
No | Count | Maximum | ReplicaName |
PT1M | No |
| Sessions by State Sessions by state as shown in pg_stat_activity view. It categorizes client backends into various states, such as active or idle |
SessionsByState |
No | Count | Maximum, Minimum, Average | state, ReplicaName |
PT1M | No |
| Sessions by WaitEventType Sessions by the type of event for which the client backend is waiting |
SessionsByWaitEventType |
No | Count | Maximum, Minimum, Average | wait_event_type, ReplicaName |
PT1M | No |
Category: Database
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Buffer Pool Cache Hit Ratio Cache hit ratio for shared buffers |
BufferPoolCacheHitRatio |
No | Count | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
| Maximum Used Transaction IDs Largest number of transaction IDs consumed; used to monitor proximity to XID wraparound |
MaximumUsedTransactionIDs |
No | Count | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
| Temporary Files Number of temporary files that were created by queries in this database |
TemporaryFiles |
No | Count | Total (Sum) | database_name, ReplicaName |
PT1M | No |
| Temporary Files Size Total amount of data that's written to temporary files by queries in this database |
TemporaryFilesSize |
No | Bytes | Total (Sum) | database_name, ReplicaName |
PT1M | No |
Category: Errors
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Failed Connections Failed Connections |
ConnectionsFailed |
No | Count | Total (Sum) | ReplicaName |
PT1M | No |
Category: Health
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Postgres Instance Is Alive Indicates if the Postgres process is running |
PGHeartbeat |
No | Count | Average, Maximum, Minimum | ReplicaName |
PT1M | No |
Category: Network
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Network Out Network Out across active connections |
NetworkBytesEgress |
No | Bytes | Total (Sum) | ReplicaName |
PT1M | No |
| Network In Network In across active connections |
NetworkBytesIngress |
No | Bytes | Total (Sum) | ReplicaName |
PT1M | No |
Category: Storage
| Metric | Name in REST API | Advanced platform metrics | Unit | Aggregation | Dimensions | Time Grains | DS Export |
|---|---|---|---|---|---|---|---|
| Commit Latency, in Microsecond The maximum duration taken by the engine to complete the commit operations |
CommitLatency |
No | Unspecified | Maximum | <none> | PT1M | No |
| Storage Used Amount of storage space that's used. The storage that's used by the service can include the database files and the transaction log tail |
StorageUsed |
No | Bytes | Average, Maximum, Minimum | <none> | PT1M | No |
| WAL Bytes Written Amount of WAL Bytes generated by PostgreSQL Engine |
WALBytesWritten |
No | BytesPerSecond | Maximum | <none> | PT1M | No |
| WAL Writes per Second Number of WAL I/O operations per second |
WALWritesPerSecond |
No | CountPerSecond | Maximum | <none> | PT1M | No |
| Write Latency, in Microsecond The maximum duration taken by WAL record to be flushed |
WriteLatency |
No | Unspecified | Maximum | <none> | PT1M | No |