Azure Synapse Analytics monitoring data reference

This article contains all the monitoring reference information for this service.

See Monitor Azure Synapse Analytics for details on the data you can collect for Azure Synapse Analytics and how to use it.

Metrics

This section lists all the automatically collected platform metrics for this service. These metrics are also part of the global list of all platform metrics supported in Azure Monitor.

For information on metric retention, see Azure Monitor Metrics overview.

Supported metrics for Microsoft.Synapse/workspaces

The following table lists the metrics available for the Microsoft.Synapse/workspaces resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category: Built-in SQL Pool

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Data processed (bytes)

Amount of data processed by queries
BuiltinSqlPoolDataProcessedBytes Bytes Total (Sum) <none> PT1M No
Login attempts

Count of login attempts that succeded or failed
BuiltinSqlPoolLoginAttempts Count Average, Minimum, Maximum, Total (Sum) Result PT1M No
Requests ended

Count of Requests that succeeded, failed, or were cancelled
BuiltinSqlPoolRequestsEnded Count Average, Minimum, Maximum, Total (Sum) Result PT1M No

Category: Integration

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Activity runs ended

Count of integration activities that succeeded, failed, or were cancelled
IntegrationActivityRunsEnded Count Count, Total (Sum) Result, FailureType, Activity, ActivityType, Pipeline PT1M, PT1H No
Link connection events

Number of Synapse Link connection events including start, stop and failure.
IntegrationLinkConnectionEvents Count Total (Sum) EventType, LinkConnectionName PT1M No
Link processed rows

Changed row count processed by Synapse Link.
IntegrationLinkProcessedChangedRows Count Total (Sum) TableName, LinkConnectionName PT1M No
Link processed data volume (bytes)

Data volume in bytes processed by Synapse Link.
IntegrationLinkProcessedDataVolume Bytes Total (Sum) TableName, LinkTableStatus, LinkConnectionName PT1M No
Link latency in seconds

Synapse Link data processing latency in seconds.
IntegrationLinkProcessingLatencyInSeconds Count Maximum, Minimum, Average LinkConnectionName PT1M No
Link table events

Number of Synapse Link table events including snapshot, removal and failure.
IntegrationLinkTableEvents Count Total (Sum) TableName, EventType, LinkConnectionName PT1M No
Pipeline runs ended

Count of integration pipeline runs that succeeded, failed, or were cancelled
IntegrationPipelineRunsEnded Count Count, Total (Sum) Result, FailureType, Pipeline PT1M, PT1H No
Trigger Runs ended

Count of integration triggers that succeeded, failed, or were cancelled
IntegrationTriggerRunsEnded Count Count, Total (Sum) Result, FailureType, Trigger PT1M, PT1H No

Category: Streaming job

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Backlogged input events (preview)

This is a preview metric available in East US, West Europe. Number of input events sources backlogged.
SQLStreamingBackloggedInputEventSources Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Data conversion errors (preview)

This is a preview metric available in East US, West Europe. Number of output events that could not be converted to the expected output schema. Error policy can be changed to 'Drop' to drop events that encounter this scenario.
SQLStreamingConversionErrors Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Input deserialization errors (preview)

This is a preview metric available in East US, West Europe. Number of input events that could not be deserialized.
SQLStreamingDeserializationError Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Early input events (preview)

This is a preview metric available in East US, West Europe. Number of input events which application time is considered early compared to arrival time, according to early arrival policy.
SQLStreamingEarlyInputEvents Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Input event bytes (preview)

This is a preview metric available in East US, West Europe. Amount of data received by the streaming job, in bytes. This can be used to validate that events are being sent to the input source.
SQLStreamingInputEventBytes Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Input events (preview)

This is a preview metric available in East US, West Europe. Number of input events.
SQLStreamingInputEvents Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Input sources received (preview)

This is a preview metric available in East US, West Europe. Number of input events sources per second.
SQLStreamingInputEventsSourcesPerSecond Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Late input events (preview)

This is a preview metric available in East US, West Europe. Number of input events which application time is considered late compared to arrival time, according to late arrival policy.
SQLStreamingLateInputEvents Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Out of order events (preview)

This is a preview metric available in East US, West Europe. Number of Event Hub Events (serialized messages) received by the Event Hub Input Adapter, received out of order that were either dropped or given an adjusted timestamp, based on the Event Ordering Policy.
SQLStreamingOutOfOrderEvents Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Output events (preview)

This is a preview metric available in East US, West Europe. Number of output events.
SQLStreamingOutputEvents Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Watermark delay (preview)

This is a preview metric available in East US, West Europe. Output watermark delay in seconds.
SQLStreamingOutputWatermarkDelaySeconds Count Maximum, Minimum, Average SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Resource % utilization (preview)

This is a preview metric available in East US, West Europe.

Resource utilization expressed as a percentage. High utilization indicates that the job is using close to the maximum allocated resources.
SQLStreamingResourceUtilization Percent Maximum, Minimum, Average SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No
Runtime errors (preview)

This is a preview metric available in East US, West Europe. Total number of errors related to query processing (excluding errors found while ingesting events or outputting results).
SQLStreamingRuntimeErrors Count Total (Sum) SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance PT1M No

Azure Synapse Link emits the following metrics to Azure Monitor:

Metric Aggregation types Description
Link connection events Sum Number of Synapse Link connection events, including start, stop, and failure
Link latency in seconds Max, Min, Avg Synapse Link data processing latency in seconds
Link processed data volume (bytes) Sum Data volume in bytes processed by Synapse Link
Link processed rows Sum Row counts processed by Synapse Link
Link table events Sum Number of Synapse Link table events, including snapshot, removal, and failure

Supported metrics for Microsoft.Synapse/workspaces/bigDataPools

The following table lists the metrics available for the Microsoft.Synapse/workspaces/bigDataPools resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category: Apache Spark pool

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
vCores allocated

Allocated vCores for an Apache Spark Pool
BigDataPoolAllocatedCores Count Maximum, Minimum, Average, Total (Sum) SubmitterId PT1M No
Memory allocated (GB)

Allocated Memory for Apach Spark Pool (GB)
BigDataPoolAllocatedMemory Count Maximum, Minimum, Average, Total (Sum) SubmitterId PT1M No
Active Apache Spark applications

Total Active Apache Spark Pool Applications
BigDataPoolApplicationsActive Count Maximum, Minimum, Average JobState PT1M No
Ended Apache Spark applications

Count of Apache Spark pool applications ended
BigDataPoolApplicationsEnded Count Total (Sum) JobType, JobResult PT1M No

Supported metrics for Microsoft.Synapse/workspaces/kustoPools

The following table lists the metrics available for the Microsoft.Synapse/workspaces/kustoPools resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category: Cluster health

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Cache utilization (deprecated)

Utilization level in the cluster scope. The metric is deprecated and presented for backward compatibility only, you should use the 'Cache utilization factor' metric instead.
CacheUtilization Percent Average, Maximum, Minimum <none> PT1M Yes
Cache utilization factor

Percentage of utilized disk space dedicated for hot cache in the cluster. 100% means that the disk space assigned to hot data is optimally utilized. No action is needed in terms of the cache size. More than 100% means that the cluster's disk space is not large enough to accommodate the hot data, as defined by your caching policies. To ensure that sufficient space is available for all the hot data, the amount of hot data needs to be reduced or the cluster needs to be scaled out. Enabling auto scale is recommended.
CacheUtilizationFactor Percent Average, Maximum, Minimum <none> PT1M Yes
CPU

CPU utilization level
CPU Percent Average, Maximum, Minimum <none> PT1M Yes
FollowerLatency

The follower databases synchronize changes in the leader databases. Because of the synchronization, there's a data lag of a few seconds to a few minutes in data availability.This metric measures the length of the time lag. The time lag depends on the overall size of the leader database metadata.This is a cluster level metrics: the followers catch metadata of all databases that are followed. This metric represents the latency of the process.
FollowerLatency MilliSeconds Average, Maximum, Minimum State, RoleInstance PT1M Yes
Ingestion utilization

Ratio of used ingestion slots in the cluster
IngestionUtilization Percent Average, Maximum, Minimum <none> PT1M Yes
Instance Count

Total instance count
InstanceCount Count Average, Maximum, Minimum, Count, Total (Sum) <none> PT1M Yes
Keep alive

Sanity check indicates the cluster responds to queries
KeepAlive Count Average <none> PT1M Yes
Total number of extents

Total number of data extents
TotalNumberOfExtents Count Average, Maximum, Minimum <none> PT1M Yes
Total number of throttled commands

Total number of throttled commands
TotalNumberOfThrottledCommands Count Average, Maximum, Minimum, Total (Sum) CommandType PT1M Yes

Category: Export health and performance

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Continuous Export Max Lateness

The lateness (in minutes) reported by the continuous export jobs in the cluster
ContinuousExportMaxLatenessMinutes Count Maximum <none> PT1M Yes
Continuous export - num of exported records

Number of records exported, fired for every storage artifact written during the export operation
ContinuousExportNumOfRecordsExported Count Total (Sum) ContinuousExportName, Database PT1M Yes
Continuous Export Pending Count

The number of pending continuous export jobs ready for execution
ContinuousExportPendingCount Count Maximum <none> PT1M Yes
Continuous Export Result

Indicates whether Continuous Export succeeded or failed
ContinuousExportResult Count Count ContinuousExportName, Result, Database PT1M Yes
Export Utilization

Export utilization
ExportUtilization Percent Maximum <none> PT1M Yes

Category: Ingestion health and performance

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Batch Blob Count

Number of data sources in an aggregated batch for ingestion.
BatchBlobCount Count Average, Maximum, Minimum Database PT1M Yes
Batch Duration

The duration of the aggregation phase in the ingestion flow.
BatchDuration Seconds Average, Maximum, Minimum Database PT1M Yes
Batches Processed

Number of batches aggregated for ingestion. Batching Type: whether the batch reached batching time, data size or number of files limit set by batching policy
BatchesProcessed Count Total (Sum), Average, Maximum, Minimum Database, SealReason PT1M Yes
Batch Size

Uncompressed expected data size in an aggregated batch for ingestion.
BatchSize Bytes Average, Maximum, Minimum Database PT1M Yes
Blobs Dropped

Number of blobs permanently rejected by a component.
BlobsDropped Count Total (Sum), Average, Minimum, Maximum Database, ComponentType, ComponentName PT1M Yes
Blobs Processed

Number of blobs processed by a component.
BlobsProcessed Count Total (Sum), Average, Minimum, Maximum Database, ComponentType, ComponentName PT1M Yes
Blobs Received

Number of blobs received from input stream by a component.
BlobsReceived Count Total (Sum), Average, Minimum, Maximum Database, ComponentType, ComponentName PT1M Yes
Discovery Latency

Reported by data connections (if exist). Time in seconds from when a message is enqueued or event is created until it is discovered by data connection. This time is not included in the Azure Data Explorer total ingestion duration.
DiscoveryLatency Seconds Average ComponentType, ComponentName PT1M Yes
Events Dropped

Number of events dropped permanently by data connection. An Ingestion result metric with a failure reason will be sent.
EventsDropped Count Total (Sum), Average, Minimum, Maximum ComponentType, ComponentName PT1M Yes
Events Processed

Number of events processed by the cluster
EventsProcessed Count Total (Sum), Average, Minimum, Maximum ComponentType, ComponentName PT1M Yes
Events Received

Number of events received by data connection.
EventsReceived Count Total (Sum), Average, Minimum, Maximum ComponentType, ComponentName PT1M Yes
Ingestion Latency

Latency of data ingested, from the time the data was received in the cluster until it's ready for query. The ingestion latency period depends on the ingestion scenario.
IngestionLatencyInSeconds Seconds Average, Maximum, Minimum IngestionKind PT1M Yes
Ingestion result

Total number of sources that either failed or succeeded to be ingested. Splitting the metric by status, you can get detailed information about the status of the ingestion operations.
IngestionResult Count Total (Sum) IngestionResultDetails, FailureKind PT1M Yes
Ingestion Volume

Overall volume of ingested data to the cluster
IngestionVolumeInMB Bytes Total (Sum), Maximum Database PT1M Yes
Queue Length

Number of pending messages in a component's queue.
QueueLength Count Average ComponentType PT1M Yes
Queue Oldest Message

Time in seconds from when the oldest message in queue was inserted.
QueueOldestMessage Count Average ComponentType PT1M Yes
Received Data Size Bytes

Size of data received by data connection. This is the size of the data stream, or of raw data size if provided.
ReceivedDataSizeBytes Bytes Average, Total (Sum) ComponentType, ComponentName PT1M Yes
Stage Latency

Cumulative time from when a message is discovered until it is received by the reporting component for processing (discovery time is set when message is enqueued for ingestion queue, or when discovered by data connection).
StageLatency Seconds Average Database, ComponentType PT1M Yes

Category: Materialized View health and performance

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Materialized View Age

The materialized view age in minutes
MaterializedViewAgeMinutes Count Average Database, MaterializedViewName PT1M Yes
Materialized View Age

The materialized view age in seconds
MaterializedViewAgeSeconds Seconds Average, Minimum, Maximum Database, MaterializedViewName PT1M Yes
Materialized View Data Loss

Indicates potential data loss in materialized view
MaterializedViewDataLoss Count Maximum Database, MaterializedViewName, Kind PT1M Yes
Materialized View Extents Rebuild

Number of extents rebuild
MaterializedViewExtentsRebuild Count Average Database, MaterializedViewName PT1M Yes
Materialized View Health

The health of the materialized view (1 for healthy, 0 for non-healthy)
MaterializedViewHealth Count Average Database, MaterializedViewName PT1M Yes
Materialized View Records In Delta

The number of records in the non-materialized part of the view
MaterializedViewRecordsInDelta Count Average Database, MaterializedViewName PT1M Yes
Materialized View Result

The result of the materialization process
MaterializedViewResult Count Average Database, MaterializedViewName, Result PT1M Yes

Category: Partitioning

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Partitioning Percentage

Percentage of records partitioned versus total number of records.
PartitioningPercentage Percent Average, Maximum, Minimum Database, Table PT1M Yes
Partitioning Percentage Hot

Percentage of records partitioned versus total number of records (in hot / cached extents only).
PartitioningPercentageHot Percent Average, Maximum, Minimum Database, Table PT1M Yes
Processed Partitioned Records

Number of records partitioned in measured time window.
ProcessedPartitionedRecords Count Average, Maximum, Minimum Database, Table PT1M Yes

Category: Query performance

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Query duration

Queries duration in seconds
QueryDuration MilliSeconds Average, Maximum, Minimum, Total (Sum) QueryStatus PT1M Yes
Query Result

Total number of queries.
QueryResult Count Count QueryStatus PT1M No
Total number of concurrent queries

Total number of concurrent queries
TotalNumberOfConcurrentQueries Count Average, Maximum, Minimum <none> PT1M Yes
Total number of throttled queries

Total number of throttled queries
TotalNumberOfThrottledQueries Count Average, Maximum, Minimum, Total (Sum) <none> PT1M Yes
Weak consistency latency

The max latency between the previous metadata sync and the next one (in DB/node scope)
WeakConsistencyLatency Seconds Average, Maximum, Minimum Database, RoleInstance PT1M Yes

Category: Streaming Ingest

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Streaming Ingest Data Rate

Streaming ingest data rate
StreamingIngestDataRate Bytes Average, Minimum, Maximum <none> PT1M Yes
Streaming Ingest Duration

Streaming ingest duration in milliseconds
StreamingIngestDuration MilliSeconds Average, Minimum, Maximum <none> PT1M Yes
Streaming Ingest Result

Streaming ingest result
StreamingIngestResults Count Count Result PT1M Yes
Streaming Ingest Utilization

Streaming Ingest Utilization is the percentage of actual concurrent streaming ingestion requests performed, compared to the maximum number of concurrent streaming ingestion requests.
StreamingIngestUtilization Percent Average, Maximum, Minimum <none> PT1M Yes

Supported metrics for Microsoft.Synapse/workspaces/scopePools

The following table lists the metrics available for the Microsoft.Synapse/workspaces/scopePools resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category: SCOPE pool

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
PN duration of SCOPE job

PN (process node) duration (Milliseconds) used by each SCOPE job
ScopePoolJobPNMetric Milliseconds Maximum, Minimum, Average, Total (Sum), Count JobType, JobResult PT1M Yes
Queued duration of SCOPE job

Queued duration (Milliseconds) used by each SCOPE job
ScopePoolJobQueuedDurationMetric Milliseconds Maximum, Minimum, Average, Total (Sum), Count JobType PT1M Yes
Running duration of SCOPE job

Running duration (Milliseconds) used by each SCOPE job
ScopePoolJobRunningDurationMetric Milliseconds Maximum, Minimum, Average, Total (Sum), Count JobType, JobResult PT1M Yes

Supported metrics for Microsoft.Synapse/workspaces/sqlPools

The following table lists the metrics available for the Microsoft.Synapse/workspaces/sqlPools resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.

Category: SQL dedicated pool

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Active queries

The active queries. Using this metric unfiltered and unsplit displays all active queries running on the system
ActiveQueries Count Total (Sum) IsUserDefined PT1M No
Adaptive cache hit percentage

Measures how well workloads are utilizing the adaptive cache. Use this metric with the cache hit percentage metric to determine whether to scale for additional capacity or rerun workloads to hydrate the cache
AdaptiveCacheHitPercent Percent Maximum, Minimum, Average <none> PT1M No
Adaptive cache used percentage

Measures how well workloads are utilizing the adaptive cache. Use this metric with the cache used percentage metric to determine whether to scale for additional capacity or rerun workloads to hydrate the cache
AdaptiveCacheUsedPercent Percent Maximum, Minimum, Average <none> PT1M No
Connections

Count of Total logins to the SQL pool
Connections Count Total (Sum) Result PT1M Yes
Connections blocked by firewall

Count of connections blocked by firewall rules. Revisit access control policies for your SQL pool and monitor these connections if the count is high
ConnectionsBlockedByFirewall Count Total (Sum) <none> PT1M No
CPU used percentage

CPU utilization across all nodes in the SQL pool
CPUPercent Percent Maximum, Minimum, Average <none> PT1M No
DWU limit

Service level objective of the SQL pool
DWULimit Count Maximum, Minimum, Average <none> PT1M No
DWU used

Represents a high-level representation of usage across the SQL pool. Measured by DWU limit * DWU percentage
DWUUsed Count Maximum, Minimum, Average <none> PT1M No
DWU used percentage

Represents a high-level representation of usage across the SQL pool. Measured by taking the maximum between CPU percentage and Data IO percentage
DWUUsedPercent Percent Maximum, Minimum, Average <none> PT1M No
Local tempdb used percentage

Local tempdb utilization across all compute nodes - values are emitted every five minute
LocalTempDBUsedPercent Percent Maximum, Minimum, Average <none> PT1M No
Memory used percentage

Memory utilization across all nodes in the SQL pool
MemoryUsedPercent Percent Maximum, Minimum, Average <none> PT1M No
Queued queries

Cumulative count of requests queued after the max concurrency limit was reached
QueuedQueries Count Total (Sum) IsUserDefined PT1M No

Category: SQL dedicated pool - Workload management

Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Workload group active queries

The active queries within the workload group. Using this metric unfiltered and unsplit displays all active queries running on the system
WLGActiveQueries Count Total (Sum) IsUserDefined, WorkloadGroup PT1M No
Workload group query timeouts

Queries for the workload group that have timed out. Query timeouts reported by this metric are only once the query has started executing (it does not include wait time due to locking or resource waits)
WLGActiveQueriesTimeouts Count Total (Sum) IsUserDefined, WorkloadGroup PT1M No
Workload group allocation by max resource percent

Displays the percentage allocation of resources relative to the Effective cap resource percent per workload group. This metric provides the effective utilization of the workload group
WLGAllocationByEffectiveCapResourcePercent Percent Maximum, Minimum, Average IsUserDefined, WorkloadGroup PT1M No
Workload group allocation by system percent

The percentage allocation of resources relative to the entire system
WLGAllocationBySystemPercent Percent Maximum, Minimum, Average, Total (Sum) IsUserDefined, WorkloadGroup PT1M No
Effective cap resource percent

The effective cap resource percent for the workload group. If there are other workload groups with min_percentage_resource > 0, the effective_cap_percentage_resource is lowered proportionally
WLGEffectiveCapResourcePercent Percent Maximum, Minimum, Average IsUserDefined, WorkloadGroup PT1M No
Effective min resource percent

The effective min resource percentage setting allowed considering the service level and the workload group settings. The effective min_percentage_resource can be adjusted higher on lower service levels
WLGEffectiveMinResourcePercent Percent Minimum, Maximum, Average, Total (Sum) IsUserDefined, WorkloadGroup PT1M No
Workload group queued queries

Cumulative count of requests queued after the max concurrency limit was reached
WLGQueuedQueries Count Total (Sum) IsUserDefined, WorkloadGroup PT1M No

Details

  • Dedicated SQL pool measures performance in compute data warehouse units (DWUs). Rather than surfacing details of individual nodes such as memory per node or number of CPUs per node, metrics such as MemoryUsedPercent and CPUPercent show general usage trend over a period of time. These trends help administrators understand how a dedicated SQL pool instance is utilized. Changes in memory or CPU footprint could be a trigger for actions such as scale-up or scale-down of DWUs, or investigating queries that might require optimization.

  • DWUUsed represents only high-level usage across the SQL pool and isn't a comprehensive indicator of utilization. To determine whether to scale up or down, consider all factors that DWU can impact, such as concurrency, memory, tempdb size, and adaptive cache capacity. Run your workload at different DWU settings to determine what works best to meet your business objectives.

  • MemoryUsedPercent reflects utilization even if the data warehouse is idle, not active workload memory consumption. Track this metric along with tempdb size and Gen2 cache to decide whether you need to scale for more cache capacity to increase workload performance.

  • Failed and successful connections are reported for a particular data warehouse, not for the server itself.

Metric dimensions

For information about what metric dimensions are, see Multi-dimensional metrics.

This service has the following dimensions associated with its metrics.

Microsoft.Synapse/workspaces

Result, FailureType, Activity, ActivityType, Pipeline, Trigger, EventType, TableName, LinkTableStatus, LinkConnectionName, SQLPoolName, SQLDatabaseName, JobName, LogicalName, PartitionId, ProcessorInstance

Use the Result dimension of the IntegrationActivityRunsEnded, IntegrationPipelineRunsEnded, IntegrationTriggerRunsEnded, and BuiltinSqlPoolDataRequestsEnded metrics to filter by Succeeded, Failed, or Canceled final state.

Microsoft.Synapse/workspaces/bigDataPools

SubmitterId, JobState, JobType, JobResult

Microsoft.Synapse/workspaces/kustoPools

Database, SealReason, ComponentType, ComponentName, ContinuousExportName, Result, EventStatus, State, RoleInstance, IngestionResultDetails, FailureKind, MaterializedViewName, Kind, Result, QueryStatus, ComponentType, CommandType

Microsoft.Synapse/workspaces/scopePools

JobType, JobResult

Microsoft.Synapse/workspaces/sqlPools

IsUserDefined, Result

Resource logs

This section lists the types of resource logs you can collect for this service. The section pulls from the list of all resource logs category types supported in Azure Monitor.

Supported resource logs for Microsoft.Synapse/workspaces

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
BuiltinSqlReqsEnded Built-in Sql Pool Requests Ended SynapseBuiltinSqlPoolRequestsEnded

Ended Azure Synapse built-in serverless SQL requests.

No Yes No
GatewayApiRequests Synapse Gateway Api Requests SynapseGatewayApiRequests

Azure Synapse gateway API requests.

No Yes No
IntegrationActivityRuns Integration Activity Runs SynapseIntegrationActivityRuns

Logs for Synapse integration activity runs.

No Yes Yes
IntegrationPipelineRuns Integration Pipeline Runs SynapseIntegrationPipelineRuns

Logs for Synapse integration pipeline runs.

No Yes Yes
IntegrationTriggerRuns Integration Trigger Runs SynapseIntegrationTriggerRuns

Logs for Synapse integration trigger runs.

No Yes Yes
SQLSecurityAuditEvents SQL Security Audit Event SQLSecurityAuditEvents

Azure Synapse SQL Audit Log.

No Yes No
SynapseLinkEvent Synapse Link Event SynapseLinkEvent

Information about Synapse Link, including Link status and Link table status.

No No Queries Yes
SynapseRbacOperations Synapse RBAC Operations SynapseRbacOperations

Azure Synapse role-based access control (SRBAC) operations.

No Yes No

Note

The event SynapseBuiltinSqlPoolRequestsEnded is emitted only for queries that read data from storage. It's not emitted for queries that process only metadata.

Supported resource logs for Microsoft.Synapse/workspaces/bigDataPools

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
BigDataPoolAppEvents Big Data Pool Applications Execution Metrics No No Yes
BigDataPoolAppsEnded Big Data Pool Applications Ended SynapseBigDataPoolApplicationsEnded

Information about ended Apache Spark applications.

No Yes No
BigDataPoolBlockManagerEvents Big Data Pool Block Manager Events No No Yes
BigDataPoolDriverLogs Big Data Pool Driver Logs No No Yes
BigDataPoolEnvironmentEvents Big Data Pool Environment Events No No Yes
BigDataPoolExecutorEvents Big Data Pool Executor Events No No Yes
BigDataPoolExecutorLogs Big Data Pool Executor Logs No No Yes
BigDataPoolJobEvents Big Data Pool Job Events No No Yes
BigDataPoolSqlExecutionEvents Big Data Pool Sql Execution Events No No Yes
BigDataPoolStageEvents Big Data Pool Stage Events No No Yes
BigDataPoolTaskEvents Big Data Pool Task Events No No Yes

Supported resource logs for Microsoft.Synapse/workspaces/kustoPools

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
Command Command SynapseDXCommand

Azure data explorer synapse command execution summary. Logs include DatabaseName, State, Duration that can be used for monitoring the commands which were invoked on the cluster

No No Yes
DataOperation Data operation No No Yes
FailedIngestion Failed ingestion No No Yes
IngestionBatching Ingestion batching SynapseDXIngestionBatching

Azure data explore synapse ingestion batching operations. These logs have detailed statistics of batches ready for ingestion (duration, batch size and blobs count)

No No Yes
Journal Journal No No Yes
Query Query SynapseDXQuery

Azure data explorer synpase query execution summary. Logs include DatabaseName, State, Duration that can be used for monitoring the queries which were invoked on the cluster

No No Yes
SucceededIngestion Succeeded ingestion SynapseDXSucceededIngestion

Succeeded ingestion operations logs provide information about successfully completed ingest operations. Logs include data source details that together with Failed ingestion operations logs can be used for tracking the process of ingestion of each data source. Ingestion logs are supported for queued ingestion to the ingestion endpoint using SDKs, data connections, and connectors

No Yes Yes
TableDetails Table details SynapseDXTableDetails

Azure Data Explorer Synpase table details

No No Yes
TableUsageStatistics Table usage statistics SynapseDXTableUsageStatistics

Azure date explorer synapse table usage statistics. Logs include DatabaseName, TableName, User that can be used for monitoring cluster's table usage

No No Yes

Supported resource logs for Microsoft.Synapse/workspaces/scopePools

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
ScopePoolScopeJobsEnded Scope Pool Scope Jobs Ended SynapseScopePoolScopeJobsEnded

SCOPE ended event including SCOPE job result and Information about the job.

No No Yes
ScopePoolScopeJobsStateChange Scope Pool Scope Jobs State Change No No Yes

Supported resource logs for Microsoft.Synapse/workspaces/sqlPools

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
DmsWorkers Dms Workers SynapseSqlPoolDmsWorkers

Information about workers completing DMS steps in an Azure Synapse dedicated SQL pool.

Yes Yes No
ExecRequests Exec Requests SynapseSqlPoolExecRequests

Information about SQL requests or queries in an Azure Synapse dedicated SQL pool.

Yes Yes No
RequestSteps Request Steps SynapseSqlPoolRequestSteps

Information about request steps that compose a given SQL request or query in an Azure Synapse dedicated SQL pool.

Yes Yes No
SqlRequests Sql Requests SynapseSqlPoolSqlRequests

Information about query distributions of the steps of SQL requests/queries in an Azure Synapse dedicated SQL pool.

Yes Yes No
SQLSecurityAuditEvents Sql Security Audit Event SQLSecurityAuditEvents

Azure Synapse SQL Audit Log.

No Yes No
Waits Waits SynapseSqlPoolWaits

Information about the wait states encountered during execution of a SQL request/query in an Azure Synapse dedicated SQL pool, including locks and waits on transmission queues.

Yes Yes No

Dynamic Management Views (DMVs)

For more information on these logs, see the following information:

To view the list of DMVs that apply to Synapse SQL, see System views supported in Synapse SQL.

Azure Monitor Logs tables

This section lists the Azure Monitor Logs tables relevant to this service, which are available for query by Log Analytics using Kusto queries. The tables contain resource log data and possibly more depending on what is collected and routed to them.

Synapse Workspaces

Microsoft.Synapse/workspaces

Available Apache Spark configurations

Configuration name Default value Description
spark.synapse.logAnalytics.enabled false To enable the Log Analytics sink for the Spark applications, true. Otherwise, false.
spark.synapse.logAnalytics.workspaceId - The destination Log Analytics workspace ID.
spark.synapse.logAnalytics.secret - The destination Log Analytics workspace secret.
spark.synapse.logAnalytics.keyVault.linkedServiceName - The Key Vault linked service name for the Log Analytics workspace ID and key.
spark.synapse.logAnalytics.keyVault.name - The Key Vault name for the Log Analytics ID and key.
spark.synapse.logAnalytics.keyVault.key.workspaceId SparkLogAnalyticsWorkspaceId The Key Vault secret name for the Log Analytics workspace ID.
spark.synapse.logAnalytics.keyVault.key.secret SparkLogAnalyticsSecret The Key Vault secret name for the Log Analytics workspace
spark.synapse.logAnalytics.uriSuffix ods.opinsights.azure.com The destination Log Analytics workspace URI suffix. If your workspace isn't in Azure global, you need to update the URI suffix according to the respective cloud.
spark.synapse.logAnalytics.filter.eventName.match - Optional. The comma-separated spark event names, you can specify which events to collect. For example: SparkListenerJobStart,SparkListenerJobEnd
spark.synapse.logAnalytics.filter.loggerName.match - Optional. The comma-separated log4j logger names, you can specify which logs to collect. For example: org.apache.spark.SparkContext,org.example.Logger
spark.synapse.logAnalytics.filter.metricName.match - Optional. The comma-separated spark metric name suffixes, you can specify which metrics to collect. For example: jvm.heap.used

Note

  • For Microsoft Azure operated by 21Vianet, the spark.synapse.logAnalytics.uriSuffix parameter should be ods.opinsights.azure.cn.
  • For Azure Government, the spark.synapse.logAnalytics.uriSuffix parameter should be ods.opinsights.azure.us.
  • For any cloud except Azure, the spark.synapse.logAnalytics.keyVault.name parameter should be the fully qualified domain name (FQDN) of the Key Vault. For example, AZURE_KEY_VAULT_NAME.vault.usgovcloudapi.net for AzureUSGovernment.

Activity log

The linked table lists the operations that can be recorded in the activity log for this service. These operations are a subset of all the possible resource provider operations in the activity log.

For more information on the schema of activity log entries, see Activity Log schema.