Azure Cosmos DB monitoring data reference

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

See Monitor Azure Cosmos DB for details on the data you can collect for Azure Cosmos DB 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.

For a list of all Azure Monitor supported metrics, including Azure Cosmos DB, see Azure Monitor supported metrics.

Supported metrics for Microsoft.DocumentDB/DatabaseAccounts

The following table lists the metrics available for the Microsoft.DocumentDB/DatabaseAccounts 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: Requests

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Region Added Region Added	AddRegion	Count	Count	Region	PT5M	No
Autoscaled RU Autoscaled RU consumption with Per Region and Per Partition Autoscale	AutoscaledRU	Count	Maximum	DatabaseName, CollectionName, PhysicalPartitionId, Region	PT1M, PT5M, PT1H, P1D	No
Autoscale Max Throughput Autoscale Max Throughput	AutoscaleMaxThroughput	Count	Maximum	DatabaseName, CollectionName	PT5M, PT1H	No
(deprecated) Available Storage "Available Storage"will be removed from Azure Monitor at the end of September 2023. Cosmos DB collection storage size is now unlimited. The only restriction is that the storage size for each logical partition key is 20GB. You can enable PartitionKeyStatistics in Diagnostic Log to know the storage consumption for top partition keys. For more info about Cosmos DB storage quota, please check this doc /azure/cosmos-db/concepts-limits. After deprecation, the remaining alert rules still defined on the deprecated metric will be automatically disabled post the deprecation date.	AvailableStorage	Bytes	Total (Sum), Average	CollectionName, DatabaseName, Region	PT5M	No
Backup Mode Update Backup Mode Update	BackupModeUpdate	Count	Count	BackupMode	PT5M	No
Periodic Backup Policy Interval Update Periodic Backup Policy Interval Update. Valid range: 60 -1440 minutes.	BackupPolicyIntervalUpdate	Count	Count	BackupIntervalInHours	PT5M	No
Periodic Backup Policy Redundancy Update Periodic Backup Policy Redundancy Update	BackupPolicyRedundancyUpdate	Count	Count	BackupRedundancy	PT5M	No
Periodic Backup Policy Retention Update Periodic Backup Policy Retention Update. Valid range: 8 - 720 hours.	BackupPolicyRetentionUpdate	Count	Count	BackupRetentionIntervalInHours	PT5M	No
Periodic Backup Policy Update Periodic Backup Policy Update	BackupPolicyUpdate	Count	Count	BackupPolicy	PT5M	No
Cassandra Connection Closures Number of Cassandra connections that were closed, reported at a 1 minute granularity	CassandraConnectionClosures	Count	Average, Minimum, Maximum, Total (Sum)	APIType, Region, ClosureReason	PT1M	No
Cassandra Connector Average ReplicationLatency Cassandra Connector Average ReplicationLatency	CassandraConnectorAvgReplicationLatency	MilliSeconds	Average	<none>	PT5M	No
Cassandra Connector Replication Health Status Cassandra Connector Replication Health Status	CassandraConnectorReplicationHealthStatus	Count	Count	NotStarted, ReplicationInProgress, Error	PT5M	No
Cassandra Keyspace Created Cassandra Keyspace Created	CassandraKeyspaceCreate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Cassandra Keyspace Deleted Cassandra Keyspace Deleted	CassandraKeyspaceDelete	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Cassandra Keyspace Throughput Updated Cassandra Keyspace Throughput Updated	CassandraKeyspaceThroughputUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Cassandra Keyspace Updated Cassandra Keyspace Updated	CassandraKeyspaceUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Cassandra Request Charges RUs consumed for Cassandra requests made	CassandraRequestCharges	Count	Total (Sum), Average, Minimum, Maximum	APIType, DatabaseName, CollectionName, Region, OperationType, ResourceType	PT1M	No
Cassandra Requests Number of Cassandra requests made	CassandraRequests	Count	Count	APIType, DatabaseName, CollectionName, Region, OperationType, ResourceType, ErrorCode	PT1M	No
Cassandra Table Created Cassandra Table Created	CassandraTableCreate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Cassandra Table Deleted Cassandra Table Deleted	CassandraTableDelete	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Cassandra Table Throughput Updated Cassandra Table Throughput Updated	CassandraTableThroughputUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Cassandra Table Updated Cassandra Table Updated	CassandraTableUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
ContinuousBackupMode Tier Update ContinuousBackupMode Tier Update	ContinuousTierUpdate	Count	Count	ContinuousBackupTier	PT5M	No
Account Created Account Created	CreateAccount	Count	Count	<none>	PT5M	No
Data Usage Total data usage reported at 5 minutes granularity	DataUsage	Bytes	Total (Sum), Average, Maximum, Minimum	CollectionName, DatabaseName, Region	PT5M, PT15M, PT30M, PT1H	No
DedicatedGatewayAverageCPUUsage Average CPU usage across dedicated gateway instances	DedicatedGatewayAverageCPUUsage	Percent	Average	Region, MetricType	PT5M	No
DedicatedGatewayAverageMemoryUsage Average memory usage across dedicated gateway instances, which is used for both routing requests and caching data	DedicatedGatewayAverageMemoryUsage	Bytes	Average	Region	PT5M	No
DedicatedGatewayCPUUsage CPU usage across dedicated gateway instances	DedicatedGatewayCPUUsage	Percent	Average, Maximum, Minimum	Region, ApplicationType	PT1M	No
DedicatedGatewayMaximumCPUUsage Average Maximum CPU usage across dedicated gateway instances	DedicatedGatewayMaximumCPUUsage	Percent	Average, Maximum	Region, MetricType	PT5M	No
DedicatedGatewayMemoryUsage Memory usage across dedicated gateway instances	DedicatedGatewayMemoryUsage	Bytes	Average, Maximum, Minimum	Region, ApplicationType	PT1M	No
DedicatedGatewayRequests Requests at the dedicated gateway	DedicatedGatewayRequests	Count	Count	DatabaseName, CollectionName, CacheExercised, OperationName, Region, CacheHit	PT1M	No
Account Deleted Account Deleted	DeleteAccount	Count	Count	<none>	PT5M	No
Document Count Total document count reported at 5 minutes, 1 hour and 1 day granularity	DocumentCount	Count	Total (Sum), Average	CollectionName, DatabaseName, Region	PT5M, PT1H, P1D	No
Document Quota Total storage quota reported at 5 minutes granularity	DocumentQuota	Bytes	Total (Sum), Average	CollectionName, DatabaseName, Region	PT5M	No
Gremlin Database Created Gremlin Database Created	GremlinDatabaseCreate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Gremlin Database Deleted Gremlin Database Deleted	GremlinDatabaseDelete	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Gremlin Database Throughput Updated Gremlin Database Throughput Updated	GremlinDatabaseThroughputUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Gremlin Database Updated Gremlin Database Updated	GremlinDatabaseUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Gremlin Graph Created Gremlin Graph Created	GremlinGraphCreate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Gremlin Graph Deleted Gremlin Graph Deleted	GremlinGraphDelete	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Gremlin Graph Throughput Updated Gremlin Graph Throughput Updated	GremlinGraphThroughputUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Gremlin Graph Updated Gremlin Graph Updated	GremlinGraphUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Gremlin Request Charges Request Units consumed for Gremlin requests made	GremlinRequestCharges	Count	Total (Sum), Average, Minimum, Maximum	APIType, DatabaseName, CollectionName, Region	PT1M	No
Gremlin Requests Number of Gremlin requests made	GremlinRequests	Count	Count	APIType, DatabaseName, CollectionName, Region, ErrorCode	PT1M	No
Index Usage Total index usage reported at 5 minutes granularity	IndexUsage	Bytes	Total (Sum), Average, Maximum, Minimum	CollectionName, DatabaseName, Region	PT5M, PT15M, PT30M, PT1H	No
IntegratedCacheEvictedEntriesSize Size of the entries evicted from the integrated cache	IntegratedCacheEvictedEntriesSize	Bytes	Average	Region	PT5M	No
IntegratedCacheItemExpirationCount Number of items evicted from the integrated cache due to TTL expiration	IntegratedCacheItemExpirationCount	Count	Average	Region, CacheEntryType	PT5M	No
IntegratedCacheItemHitRate Number of point reads that used the integrated cache divided by number of point reads routed through the dedicated gateway with eventual consistency	IntegratedCacheItemHitRate	Percent	Average	Region, CacheEntryType	PT5M	No
IntegratedCacheQueryExpirationCount Number of queries evicted from the integrated cache due to TTL expiration	IntegratedCacheQueryExpirationCount	Count	Average	Region, CacheEntryType	PT5M	No
IntegratedCacheQueryHitRate Number of queries that used the integrated cache divided by number of queries routed through the dedicated gateway with eventual consistency	IntegratedCacheQueryHitRate	Percent	Average	Region, CacheEntryType	PT5M	No
Materialized View Catchup Gap In Minutes Maximum time difference in minutes between data in source container and data propagated to materialized view	MaterializedViewCatchupGapInMinutes	Count	Maximum	Region, TargetContainerName, BuildType	PT1M	No
Materialized Views Builder Average CPU Usage Average CPU usage across materialized view builder instances, which are used for populating data in materialized views	MaterializedViewsBuilderAverageCPUUsage	Percent	Average	Region, MetricType	PT5M	No
Materialized Views Builder Average Memory Usage Average memory usage across materialized view builder instances, which are used for populating data in materialized views	MaterializedViewsBuilderAverageMemoryUsage	Bytes	Average	Region	PT5M	No
Materialized Views Builder Maximum CPU Usage Average Maximum CPU usage across materialized view builder instances, which are used for populating data in materialized views	MaterializedViewsBuilderMaximumCPUUsage	Percent	Average, Maximum	Region, MetricType	PT5M	No
Metadata Requests Count of metadata requests. Cosmos DB maintains system metadata collection for each account, that allows you to enumerate collections, databases, etc, and their configurations, free of charge.	MetadataRequests	Count	Count	DatabaseName, CollectionName, Region, StatusCode, Role	PT1M	No
Mongo Collection Created Mongo Collection Created	MongoCollectionCreate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Mongo Collection Deleted Mongo Collection Deleted	MongoCollectionDelete	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Mongo Collection Throughput Updated Mongo Collection Throughput Updated	MongoCollectionThroughputUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Mongo Collection Updated Mongo Collection Updated	MongoCollectionUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Mongo Database Deleted Mongo Database Deleted	MongoDatabaseDelete	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Mongo Database Throughput Updated Mongo Database Throughput Updated	MongoDatabaseThroughputUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Mongo Database Created Mongo Database Created	MongoDBDatabaseCreate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Mongo Database Updated Mongo Database Updated	MongoDBDatabaseUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Mongo Request Charge Mongo Request Units Consumed	MongoRequestCharge	Count	Total (Sum), Average, Maximum	DatabaseName, CollectionName, Region, CommandName, ErrorCode, Status	PT1M	No
Mongo Requests Number of Mongo Requests Made	MongoRequests	Count	Count	DatabaseName, CollectionName, Region, CommandName, ErrorCode, Status	PT1M	No
Normalized RU Consumption Max RU consumption percentage per minute	NormalizedRUConsumption	Percent	Maximum, Average	CollectionName, DatabaseName, Region, PartitionKeyRangeId, CollectionRid, PhysicalPartitionId, OfferOwnerRid	PT1M, PT5M, PT1H, P1D	No
Region Offlined Region Offlined	OfflineRegion	Count	Count	Region, StatusCode, Role, OperationName	PT1M	No
Region Onlined Region Onlined	OnlineRegion	Count	Count	Region, StatusCode, Role, OperationName	PT1M	No
Physical Partition Count Physical Partition Count	PhysicalPartitionCount	Count	Maximum	CollectionName, DatabaseName, IsSharedThroughputOffer, OfferOwnerRid, Region	PT5M	No
Physical Partition Size Physical Partition Size in bytes	PhysicalPartitionSizeInfo	Bytes	Maximum, Average	CollectionName, DatabaseName, PhysicalPartitionId, OfferOwnerRid, Region	PT1M, PT5M, PT1H, P1D	No
Physical Partition Throughput Physical Partition Throughput	PhysicalPartitionThroughputInfo	Count	Maximum	CollectionName, DatabaseName, PhysicalPartitionId, OfferOwnerRid, Region	PT5M, PT1H, P1D	No
Provisioned Throughput Provisioned Throughput	ProvisionedThroughput	Count	Maximum	DatabaseName, CollectionName, Region	PT5M, PT1H, P1D	No
Region Failed Over Region Failed Over	RegionFailover	Count	Count	<none>	PT5M	No
Region Removed Region Removed	RemoveRegion	Count	Count	Region	PT5M	No
P99 Replication Latency P99 Replication Latency across source and target regions for geo-enabled account	ReplicationLatency	MilliSeconds	Minimum, Maximum, Average	SourceRegion, TargetRegion	PT1M	No
(deprecated) Server Side Latency "Server Side Latency" will be removed from Azure Monitor at the end of August 2025. Please use "Server Side Latency Direct" and "Server Side Latency Gateway" to monitor the latency instead. For more info about latency metrics, please refer to this /azure/cosmos-db/monitor-server-side-latency.	ServerSideLatency	MilliSeconds	Average, Minimum, Maximum, Total (Sum)	DatabaseName, CollectionName, Region, ConnectionMode, OperationType, PublicAPIType	PT1M, PT5M, PT1H, P1D	No
Server Side Latency Direct Server Side Latency in Direct Connection Mode	ServerSideLatencyDirect	MilliSeconds	Average, Minimum, Maximum, Total (Sum)	DatabaseName, CollectionName, Region, ConnectionMode, OperationType, PublicAPIType, APIType, IsExternal	PT1M, PT5M, PT1H, P1D	No
Server Side Latency Gateway Server Side Latency in Gateway Connection Mode	ServerSideLatencyGateway	MilliSeconds	Average, Minimum, Maximum, Total (Sum)	DatabaseName, CollectionName, Region, ConnectionMode, OperationType, PublicAPIType, APIType, IsExternal	PT1M, PT5M, PT1H, P1D	No
Service Availability Account requests availability at one hour, day or month granularity	ServiceAvailability	Percent	Minimum, Average, Maximum	IsExternal	PT1H	No
Sql Container Created Sql Container Created	SqlContainerCreate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Sql Container Deleted Sql Container Deleted	SqlContainerDelete	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Sql Container Throughput Updated Sql Container Throughput Updated	SqlContainerThroughputUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Sql Container Updated Sql Container Updated	SqlContainerUpdate	Count	Count	ResourceName, ChildResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Sql Database Created Sql Database Created	SqlDatabaseCreate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Sql Database Deleted Sql Database Deleted	SqlDatabaseDelete	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
Sql Database Throughput Updated Sql Database Throughput Updated	SqlDatabaseThroughputUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
Sql Database Updated Sql Database Updated	SqlDatabaseUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
AzureTable Table Created AzureTable Table Created	TableTableCreate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
AzureTable Table Deleted AzureTable Table Deleted	TableTableDelete	Count	Count	ResourceName, ApiKind, ApiKindResourceType, OperationType	PT5M	No
AzureTable Table Throughput Updated AzureTable Table Throughput Updated	TableTableThroughputUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest	PT5M	No
AzureTable Table Updated AzureTable Table Updated	TableTableUpdate	Count	Count	ResourceName, ApiKind, ApiKindResourceType, IsThroughputRequest, OperationType	PT5M	No
Total Requests Number of requests made	TotalRequests	Count	Count	DatabaseName, CollectionName, Region, StatusCode, OperationType, Status, CapacityType, PriorityLevel, ConnectionMode, IsExternal	PT1M	No
Total Requests (Preview) Number of SQL requests	TotalRequestsPreview	Count	Count	DatabaseName, CollectionName, Region, StatusCode, OperationType, Status, PriorityLevel, IsExternal	PT1M	No
Total Request Units SQL Request Units consumed	TotalRequestUnits	Count	Total (Sum), Average, Maximum	DatabaseName, CollectionName, Region, StatusCode, OperationType, Status, CapacityType, PriorityLevel	PT1M	No
Total Request Units (Preview) Request Units consumed with CapacityType	TotalRequestUnitsPreview	Count	Total (Sum), Average, Maximum	DatabaseName, CollectionName, Region, StatusCode, OperationType, Status, CapacityType, PriorityLevel	PT1M	No
Account Keys Updated Account Keys Updated	UpdateAccountKeys	Count	Count	KeyType	PT5M	No
Account Network Settings Updated Account Network Settings Updated	UpdateAccountNetworkSettings	Count	Count	<none>	PT5M	No
Account Replication Settings Updated Account Replication Settings Updated	UpdateAccountReplicationSettings	Count	Count	<none>	PT5M	No
Account Diagnostic Settings Updated Account Diagnostic Settings Updated	UpdateDiagnosticsSettings	Count	Count	DiagnosticSettingsName, ResourceGroupName	PT5M	No

Supported metrics for Microsoft.DocumentDB/cassandraClusters

The following table lists the metrics available for the Microsoft.DocumentDB/cassandraClusters 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: Cassandra Cache

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
cache capacity Cache capacity (bytes).	cassandra_cache_capacity	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
cache entries Total number of cache entries.	cassandra_cache_entries	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
cache hit rate All time cache hit rate.	cassandra_cache_hit_rate	Percent	Average	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
cache hits Number of cache hits.	cassandra_cache_hits	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
cache miss latency average (microseconds) Average cache miss latency (microseconds).	cassandra_cache_miss_latency_histogram	Count	Average	cassandra_datacenter, cassandra_node, quantile	PT1M	No
cache miss latency p99 (microseconds) p99 latency of misses.	cassandra_cache_miss_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
cache requests Number of cache requests.	cassandra_cache_requests	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, cache_name	PT1M	No
occupied cache size Size of occupied cache (bytes).	cassandra_cache_size	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, cache_name	PT1M	No

Category: Cassandra Client

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
auth failure (deprecated) Number of failed client authentication requests.	cassandra_client_auth_failure	Count	Total (Sum)	cassandra_datacenter, cassandra_node	PT1M	No
auth failure (deprecated) Number of failed client authentication requests.	cassandra_client_auth_failure2	Count	Total (Sum)	cassandra_datacenter, cassandra_node	PT1M	No
client auth failure Number of failed client authentication requests.	cassandra_client_auth_failure3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
client auth success Number of successful client authentication requests.	cassandra_client_auth_success	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
connected native clients Number of connected native clients.	cassandra_client_connected_native_clients	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No

Category: Cassandra Client Request

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
condition not met Cumulative number of transaction preconditions did not match current values.	cassandra_client_request_condition_not_met	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, request_type	PT1M	No
contention average How many contended reads/writes were encountered in average.	cassandra_client_request_contention_histogram	Count	Average	cassandra_datacenter, cassandra_node, request_type	PT1M	No
contention p99 p99 how many contended writes were encountered.	cassandra_client_request_contention_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, request_type	PT1M	No
failures (deprecated) Number of transaction failures encountered.	cassandra_client_request_failures	Count	Total (Sum)	cassandra_datacenter, cassandra_node, request_type	PT1M	No
failures (deprecated) Number of transaction failures encountered.	cassandra_client_request_failures2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, request_type	PT1M	No
client failures Cumulative number of transaction failures encountered.	cassandra_client_request_failures3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, request_type	PT1M	No
client request latency average (microseconds) Average client request latency (microseconds).	cassandra_client_request_latency_histogram	Count	Average	cassandra_datacenter, cassandra_node, quantile, request_type	PT1M	No
client request latency max (microseconds) Maximum client request latency (microseconds).	cassandra_client_request_latency_max	Count	Maximum	ClusterResourceName, DataCenterResourceName, Address, request_type	PT1M	No
client request latency p99 (microseconds) p99 client request latency (microseconds).	cassandra_client_request_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, request_type	PT1M	No
timeouts (deprecated) Number of timeouts encountered.	cassandra_client_request_timeouts	Count	Total (Sum)	cassandra_datacenter, cassandra_node, request_type	PT1M	No
timeouts (deprecated) Number of timeouts encountered.	cassandra_client_request_timeouts2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, request_type	PT1M	No
client timeouts Cumulative number of timeouts encountered in client requests.	cassandra_client_request_timeouts3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, request_type	PT1M	No
unfinished commit Cumulative number of transactions that were committed on write.	cassandra_client_request_unfinished_commit	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, request_type	PT1M	No

Category: Cassandra CommitLog

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Commit latency on waiting average (microseconds). Average time spent waiting on CL fsync (microseconds); for Periodic this is only occurs when the sync is lagging its sync interval.	cassandra_commit_log_waiting_on_commit_latency_histogram	Count	Average	cassandra_datacenter, cassandra_node, quantile	PT1M	No

Category: Cassandra CQL

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
prepared statements executed Total number of prepared statements executed.	cassandra_cql_prepared_statements_executed	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
regular statements executed Total number of non prepared statements executed.	cassandra_cql_regular_statements_executed	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No

Category: Cassandra DroppedMessage

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
dropped messages count Total count of dropped messages.	cassandra_dropped_message_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, message_type	PT1M	No
cross-node dropped latency Average dropped latency across nodes.	cassandra_dropped_message_cross_node_latency	MilliSeconds	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, message_type	PT1M	No
cross-node dropped latency p99 99th percentile of dropped latency across nodes.	cassandra_dropped_message_cross_node_latency_p99	MilliSeconds	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, message_type	PT1M	No
internal dropped latency Average dropped latency within node.	cassandra_dropped_message_internal_latency	MilliSeconds	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, message_type	PT1M	No
dropped messages rate Rate of dropped messages.	cassandra_dropped_message_rate	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, message_type	PT1M	No

Category: Cassandra HintsService

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
hints failed rate Rate of the hints that failed deliver.	cassandra_hints_failed_rate	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
hints succeeded rate Rate of the hints successfully delivered.	cassandra_hints_succeeded_rate	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
hints timed out rate Rate of the hints that timed out.	cassandra_hints_timed_out_rate	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No

Category: Cassandra JVM

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
jvm gc count Total number of collections that have occurred.	cassandra_jvm_gc_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
jvm gc time Approximate accumulated collection elapsed time.	cassandra_jvm_gc_time	MilliSeconds	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No

Category: Cassandra Storage

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
total hints Cumulative number of total hints in storage.	cassandra_storage_total_hints_counter_total	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No
total hints in progress Number of total hints in progress.	cassandra_storage_total_hints_in_progress_counter_total	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node	PT1M	No

Category: Cassandra Table

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
all memtables live data size Total amount of live data stored in the memtables (2i and pending flush memtables included) that resides off-heap, excluding any data structure overhead.	cassandra_table_all_memtables_live_data_size	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
all memtables off heap size Total amount of data stored in the memtables (2i and pending flush memtables included) that resides off-heap.	cassandra_table_all_memtables_off_heap_size	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
bloom filter disk space used Disk space used by bloom filter (bytes).	cassandra_table_bloom_filter_disk_space_used	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
bloom filter false positives Number of false positives on table's bloom filter.	cassandra_table_bloom_filter_false_positives	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
bloom filter false ratio False positive ratio of table's bloom filter.	cassandra_table_bloom_filter_false_ratio	Percent	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
bloom filter off-heap memory used Off-heap memory used by bloom filter.	cassandra_table_bloom_filter_off_heap_memory_used	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
bytes flushed Total number of bytes flushed since server [re]start.	cassandra_table_bytes_flushed	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas commit average (microseconds) Average latency of paxos commit round.	cassandra_table_cas_commit	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas commit p99 (microseconds) p99 latency of paxos commit round.	cassandra_table_cas_commit_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas prepare average (microseconds) Average latency of paxos prepare round.	cassandra_table_cas_prepare	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas prepare p99 (microseconds) p99 latency of paxos prepare round.	cassandra_table_cas_prepare_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas propose average (microseconds) Average latency of paxos propose round.	cassandra_table_cas_propose	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
cas propose p99 (microseconds) p99 latency of paxos propose round.	cassandra_table_cas_propose_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
col update time delta average Average column update time delta on this table.	cassandra_table_col_update_time_delta_histogram	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
col update time delta p99 p99 column update time delta on this table.	cassandra_table_col_update_time_delta_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
compaction bytes written Total number of bytes written by compaction since server [re]start.	cassandra_table_compaction_bytes_written	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
compression metadata off-heap memory used Off-heap memory used by compression metadata.	cassandra_table_compression_metadata_off_heap_memory_used	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
compression ratio Current compression ratio for all SSTables.	cassandra_table_compression_ratio	Percent	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
coordinator read latency average (microseconds) Average coordinator read latency for this table.	cassandra_table_coordinator_read_latency	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
coordinator read latency p99 (microseconds) p99 coordinator read latency for this table.	cassandra_table_coordinator_read_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
coordinator scan latency average (microseconds) Average coordinator range scan latency for this table.	cassandra_table_coordinator_scan_latency	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
coordinator scan latency p99 (microseconds) p99 coordinator range scan latency for this table.	cassandra_table_coordinator_scan_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
dropped mutations (deprecated) Number of dropped mutations on this table.	cassandra_table_dropped_mutations	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
dropped mutations (deprecated) Number of dropped mutations on this table.	cassandra_table_dropped_mutations2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
dropped mutations Total number of dropped mutations on this table.	cassandra_table_dropped_mutations3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
estimated column count average Estimated number of columns in average.	cassandra_table_estimated_column_count_histogram	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
estimated column count p99 p99 estimated number of columns.	cassandra_table_estimated_column_count_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
estimated partition count Approximate number of keys in table.	cassandra_table_estimated_partition_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
estimated partition size average Estimated partition size in average.	cassandra_table_estimated_partition_size_histogram	Bytes	Average	cassandra_datacenter, cassandra_node, quantile, table, keyspace	PT1M	No
estimated partition size p99 p99 estimated partition size (bytes).	cassandra_table_estimated_partition_size_histogram_p99	Bytes	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
index summary off-heap memory used Off-heap memory used by index summary.	cassandra_table_index_summary_off_heap_memory_used	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
key cache hit rate Key cache hit rate for this table.	cassandra_table_key_cache_hit_rate	Percent	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
live disk space used Disk space used by SSTables belonging to this table (bytes).	cassandra_table_live_disk_space_used	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
live scanned average Average live cells scanned in queries on this table.	cassandra_table_live_scanned_histogram	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
live scanned p99 p99 live cells scanned in queries on this table.	cassandra_table_live_scanned_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
live sstable count Number of SSTables on disk for this table.	cassandra_table_live_sstable_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
max partition size Size of the largest compacted partition (bytes).	cassandra_table_max_partition_size	Bytes	Maximum	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
mean partition size Size of the average compacted partition (bytes).	cassandra_table_mean_partition_size	Bytes	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
memtable columns count Total number of columns present in the memtable.	cassandra_table_memtable_columns_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
memtable off heap size Total amount of data stored in the memtable that resides off-heap, including column related overhead and partitions overwritten.	cassandra_table_memtable_off_heap_size	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
memtable on heap size Total amount of data stored in the memtable that resides on-heap, including column related overhead and partitions overwritten.	cassandra_table_memtable_on_heap_size	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
memtable switch count Number of times flush has resulted in the memtable being switched out.	cassandra_table_memtable_switch_count	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
min partition size Size of the smallest compacted partition (bytes).	cassandra_table_min_partition_size	Bytes	Minimum	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending compactions (deprecated) Estimate of number of pending compactions for this table.	cassandra_table_pending_compactions	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending compactions (deprecated) Estimate of number of pending compactions for this table.	cassandra_table_pending_compactions2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending compactions Estimate of number of pending compactions for this table.	cassandra_table_pending_compactions3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending flushes (deprecated) Estimated number of flush tasks pending for this table.	cassandra_table_pending_flushes	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending flushes (deprecated) Estimated number of flush tasks pending for this table.	cassandra_table_pending_flushes2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
pending flushes Estimated number of flush tasks pending for this table.	cassandra_table_pending_flushes3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
percent repaired Percent of table data that is repaired on disk.	cassandra_table_percent_repaired	Percent	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
range latency average (microseconds) Average local range scan latency for this table.	cassandra_table_range_latency	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
range latency p99 (microseconds) p99 local range scan latency for this table.	cassandra_table_range_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
read latency average (microseconds) Average local read latency for this table.	cassandra_table_read_latency	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
read latency p99 (microseconds) p99 local read latency for this table.	cassandra_table_read_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
row cache hit Number of table row cache hits.	cassandra_table_row_cache_hit	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
row cache hit out of range Number of table row cache hits that do not satisfy the query filter, thus went to disk.	cassandra_table_row_cache_hit_out_of_range	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
row cache miss Number of table row cache misses.	cassandra_table_row_cache_miss	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
speculative retries Number of times speculative retries were sent for this table.	cassandra_table_speculative_retries	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
sstables per read average Average number of sstable data files accessed per single partition read. SSTables skipped due to Bloom Filters, min-max key or partition index lookup are not taken into account.	cassandra_table_sstables_per_read_histogram	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
sstables per read p99 p99 number of sstable data files accessed per single partition read. SSTables skipped due to Bloom Filters, min-max key or partition index lookup are not taken into account.	cassandra_table_sstables_per_read_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
tombstone scanned average Average tombstones scanned in queries on this table.	cassandra_table_tombstone_scanned_histogram	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
tombstone scanned p99 p99 tombstones scanned in queries on this table.	cassandra_table_tombstone_scanned_histogram_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
total disk space used (deprecated) Total disk space used by SSTables belonging to this table, including obsolete ones waiting to be GC'd.	cassandra_table_total_disk_space_used	Bytes	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M, PT5M, PT15M, PT30M, PT1H, PT6H, PT12H, P1D	No
total disk space used (deprecated) Total disk space used by SSTables belonging to this table, including obsolete ones waiting to be GC'd.	cassandra_table_total_disk_space_used2	Bytes	Total (Sum)	cassandra_datacenter, cassandra_node, table, keyspace	PT1M, PT5M, PT15M, PT30M, PT1H, PT6H, PT12H, P1D	No
total disk space used Total disk space used by SSTables belonging to this table, including obsolete ones waiting to be GC'd.	cassandra_table_total_disk_space_used3	Bytes	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
view lock acquire time average Average time taken acquiring a partition lock for materialized view updates on this table.	cassandra_table_view_lock_acquire_time	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
view lock acquire time p99 p99 time taken acquiring a partition lock for materialized view updates on this table.	cassandra_table_view_lock_acquire_time_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
view read time average Average time taken during the local read of a materialized view update.	cassandra_table_view_read_time	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
view read time p99 p99 time taken during the local read of a materialized view update.	cassandra_table_view_read_time_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
waiting on free memtable space average Average time spent waiting for free memtable space, either on- or off-heap.	cassandra_table_waiting_on_free_memtable_space	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
waiting on free memtable space p99 p99 time spent waiting for free memtable space, either on- or off-heap.	cassandra_table_waiting_on_free_memtable_space_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
write latency average (microseconds) Average local write latency for this table.	cassandra_table_write_latency	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No
write latency p99 (microseconds) p99 local write latency for this table.	cassandra_table_write_latency_p99	Count	Average	cassandra_datacenter, cassandra_node, table, keyspace	PT1M	No

Category: Cassandra ThreadPool

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
active tasks Number of tasks being actively worked on by this pool.	cassandra_thread_pools_active_tasks	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
currently blocked tasks (deprecated) Number of tasks that are currently blocked due to queue saturation but on retry will become unblocked.	cassandra_thread_pools_currently_blocked_tasks	Count	Total (Sum)	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
currently blocked tasks (deprecated) Number of tasks that are currently blocked due to queue saturation but on retry will become unblocked.	cassandra_thread_pools_currently_blocked_tasks2	Count	Total (Sum)	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
currently blocked tasks Number of tasks that are currently blocked due to queue saturation but on retry will become unblocked.	cassandra_thread_pools_currently_blocked_tasks3	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
max pool size Maximum number of threads in this pool.	cassandra_thread_pools_max_pool_size	Count	Maximum	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
pending tasks Number of queued tasks queued up on this pool.	cassandra_thread_pools_pending_tasks	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No
total blocked tasks Total number of tasks that were blocked due to queue saturation.	cassandra_thread_pools_total_blocked_tasks	Count	Average, Minimum, Maximum, Count	cassandra_datacenter, cassandra_node, pool_name, pool_type	PT1M	No

Category: System

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
CPU usage active CPU usage (active).	cpu	Percent	Average	ClusterResourceName, DataCenterResourceName, Address, Kind, CPU	PT1M	Yes
disk utilization Disk utilization rate.	disk_utilization	Percent	Average	ClusterResourceName, DataCenterResourceName, Address	PT1M	Yes
disk I/O merged reads Cumulative disk I/O merged reads.	diskio_merged_reads	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O merged writes Cumulative disk I/O merged writes.	diskio_merged_writes	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O read bytes Cumulative disk I/O read bytes.	diskio_read_bytes	Bytes	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O read time (milliseconds) Cumulative disk I/O read time (milliseconds).	diskio_read_time	MilliSeconds	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O read counts Cumulative disk I/O read counts.	diskio_reads	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O write bytes Cumulative disk I/O write bytes.	diskio_write_bytes	Bytes	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O write time (milliseconds) Cumulative disk I/O write time (milliseconds).	diskio_write_time	MilliSeconds	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
disk I/O write counts Cumulative disk I/O write counts.	diskio_writes	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
network received bytes Cumulative network received bytes.	ethtool_rx_bytes	Bytes	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
network received packets Cumulative network received packets.	ethtool_rx_packets	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
network transmitted bytes Cumulative network transmitted bytes.	ethtool_tx_bytes	Bytes	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
network transmitted packets Cumulative network transmitted packets.	ethtool_tx_packets	Count	Average, Minimum, Maximum, Count	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	No
IOPS (including throughput) I/O operations and bytes per second.	iops	Count	Average	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	Yes
memory utilization Memory utilization rate.	percent_mem	Percent	Average	ClusterResourceName, DataCenterResourceName, Address	PT1M	Yes
RAID array degraded Whether RAID array is degraded. 1 means degraded, 0 means not degraded.	raid_array_degraded	Count	Average, Maximum, Minimum	DataCenterResourceName, Address, RaidArrayName, RaidArrayType	PT1M	No
RAID array rebuild Percentage of RAID array rebuild.	raid_array_rebuild	Percent	Average, Minimum, Maximum	DataCenterResourceName, Address, RaidArrayName, RaidArrayType	PT1M	No
average CPU usage active Average CPU usage (active) across all the CPUs.	total_cpu	Percent	Average	ClusterResourceName, DataCenterResourceName, Address, Kind	PT1M	Yes

Supported metrics for Microsoft.DocumentDB/mongoClusters

The following table lists the metrics available for the Microsoft.DocumentDB/mongoClusters 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: Latency

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Mongo request duration The end-to-end duration in milliseconds of client Mongo DB requests handled by the Mongo cluster. Updated every 60 seconds.	MongoRequestDurationMs	Milliseconds	Average, Count, Maximum, Minimum, Total (Sum)	Authentication, CollectionName, DatabaseName, ErrorCode, Operation, Protocol, ServerName, StatusCode, StatusCodeClass, StatusText	PT1M	Yes

Category: Saturation

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
Autoscale Utilization percent Percent Autoscale utilization	AutoscaleUtilizationPercent	Percent	Average, Maximum, Minimum	<none>	PT1M	No
Committed Memory percent Percentage of Commit Memory Limit allocated by applications on node	CommittedMemoryPercent	Percent	Average, Maximum, Minimum	ServerName	PT1M	No
CPU percent Percent CPU utilization on node	CpuPercent	Percent	Average, Maximum, Minimum	ServerName	PT1M	No
Memory percent Percent memory utilization on node	MemoryPercent	Percent	Average, Maximum, Minimum	ServerName	PT1M	No
Storage percent Percent of available storage used on node	StoragePercent	Percent	Average, Maximum, Minimum	ServerName	PT1M	No
Storage used Quantity of available storage used on node	StorageUsed	Bytes	Average, Maximum, Minimum	ServerName	PT1M	No

Category: Traffic

Metric	Name in REST API	Unit	Aggregation	Dimensions	Time Grains	DS Export
IOPS Disk IO operations per second on node	IOPS	Count	Average, Maximum, Minimum	ServerName	PT1M	Yes

Metrics by category

The following tables list Azure Cosmos DB metrics categorized by metric type.

Request metrics

• TotalRequests (Total Requests)
• MetadataRequests (Metadata Requests)
• MongoRequests (Mongo Requests)

Request Unit metrics

• MongoRequestCharge (Mongo Request Charge)
• TotalRequestUnits (Total Request Units)
• ProvisionedThroughput (Provisioned Throughput)
• AutoscaleMaxThroughput (Autoscale Max Throughput)
• PhysicalPartitionThroughputInfo (Physical Partition Throughput Info)

Storage metrics

• AvailableStorage (Available Storage)
• DataUsage (Data Usage)
• IndexUsage (Index Usage)
• DocumentQuota (Document Quota)
• DocumentCount (Document Count)
• PhysicalPartitionSizeInfo (Physical Partition Size Info)

Latency metrics

• ReplicationLatency (Replication Latency)
• Server Side Latency

Availability metrics

• ServiceAvailability (Service Availability)

API for Cassandra metrics

• CassandraRequests (Cassandra Requests)
• CassandraRequestCharges (Cassandra Request Charges)
• CassandraConnectionClosures (Cassandra Connection Closures)

Error codes for Cassandra

The following table lists error codes for your API for Cassandra account. For sample queries, see Server diagnostics for Azure Cosmos DB for Apache Cassandra

Status code	Error code	Description
200	-1	Successful
400	8704	The query is correct but an invalid syntax.
400	8192	The submitted query has a syntax error. Review your query.
400	8960	The query is invalid because of some configuration issue.
401	8448	The logged user does not have the right permissions to perform the query.
403	8448	Forbidden response as the user may not have the necessary permissions to carry out the request.
404	5376	A non-timeout exception during a write request as a result of response not found.
405	0	Server-side Cassandra error. The error rarely occurs, open a support ticket.
408	4608	Timeout during a read request.
408	4352	Timeout exception during a write serviceRequest.
409	9216	Attempting to create a keyspace or table that already exist.
412	5376	Precondition failure. To ensure data integrity, we ensure that the write request based on the read response is true. A non-timeout write request exception is returned.
413	5376	This non-timeout exception during a write request is because of payload maybe too large. Currently, there is a limit of 2MB per row.
417	9472	The exception is thrown when a prepared statement is not cached on the server node. It should be transient/non-blocking.
423	5376	There is a lock because a write request that is currently processing.
429	4097	Overload exception is as a result of RU shortage or high request rate. Probably need more RU to handle the higher volume request. In, native Cassandra this can be interpreted as one of the VMs not having enough CPU. We advise reviewing current data model to ensure that you do not have excessive skews that might be causing hot partitions.
449	5376	Concurrent execution exception. This occurs to ensure only one write update at a time for a given row.
500	0	Server cassandraError: something unexpected happened. This indicates a server-side bug.
503	4096	Service unavailable.
	256	This may be because of invalid connection credentials. Please check your connection credentials.
	10	A client message triggered protocol violation. An example is query message sent before a startup one has been sent.

Metric dimensions

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

This service has the following dimensions associated with its metrics.

Microsoft.DocumentDB/DatabaseAccounts

• ApiKindResourceType
• APIType
• ApplicationType
• BuildType
• CacheEntryType
• CacheExercised
• CacheHit
• CapacityType
• ChildResourceName
• ClosureReason
• CommandName
• ConnectionMode
• DiagnosticSettingsName
• Error
• ErrorCode
• IsExternal
• IsSharedThroughputOffer
• IsThroughputRequest
• KeyType
• MetricType
• NotStarted
• OfferOwnerRid
• PartitionKeyRangeId
• PhysicalPartitionId
• PhysicalPartitionId
• PriorityLevel
• PublicAPIType
• ReplicationInProgress
• ResourceGroupName
• ResourceName
• Role
• SourceRegion
• TargetContainerName
• TargetRegion

Microsoft.DocumentDB/cassandraClusters

• cassandra_datacenter
• cassandra_node
• cache_name

Microsoft.DocumentDB/mongoClusters

• ServerName

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.DocumentDB/DatabaseAccounts

Category	Category display name	Log table	Supports basic log plan	Supports ingestion-time transformation	Example queries	Costs to export
CassandraRequests	CassandraRequests	CDBCassandraRequests This table details data plane operations, specifically for Cassandra API accounts.	Yes	Yes		No
ControlPlaneRequests	ControlPlaneRequests	CDBControlPlaneRequests This table details all control plane operations executed on the account, which include modifications to the regional failover policy, indexing policy, IAM role assignments, backup/restore policies, VNet and firewall rules, private links as well as updates and deletes of the account.	Yes	Yes		No
DataPlaneRequests	DataPlaneRequests	CDBDataPlaneRequests The DataPlaneRequests table captures every data plane operation for the Cosmos DB account. Data Plane requests are operations executed to create, update, delete or retrieve data within the account.	Yes	Yes		No
GremlinRequests	GremlinRequests	CDBGremlinRequests This table details data plane operations, specifically for Graph API accounts.	Yes	Yes		No
MongoRequests	MongoRequests	CDBMongoRequests This table details data plane operations, specifically for Mongo API accounts.	Yes	Yes		No
PartitionKeyRUConsumption	PartitionKeyRUConsumption	CDBPartitionKeyRUConsumption This table details the RU (Request Unit) consumption for logical partition keys in each region, within each of their physical partitions. This data can be used to identify hot partitions from a request volume perspective.	Yes	Yes		No
PartitionKeyStatistics	PartitionKeyStatistics	CDBPartitionKeyStatistics This table provides outlier logical partition keys that have consumed more storage space than others. Statistics are based on a sub-sampling of partition keys within the collection and hence these are approximate. Partition keys that are below 1GB of storage may not show up in the reported statistics.	Yes	Yes		No
QueryRuntimeStatistics	QueryRuntimeStatistics	CDBQueryRuntimeStatistics This table details query operations executed against a SQL API account. By default, the query text and its parameters are obfuscated to avoid logging PII data with full text query logging available by request.	Yes	Yes		No
TableApiRequests	TableApiRequests	CDBTableApiRequests This table details data plane operations, specifically for Table API accounts.	Yes	No		Yes

Supported resource logs for Microsoft.DocumentDB/cassandraClusters

Category	Category display name	Log table	Supports basic log plan	Supports ingestion-time transformation	Example queries	Costs to export
CassandraAudit	CassandraAudit	AzureDiagnostics Logs from multiple Azure resources.	No	No	Queries	Yes
CassandraLogs	CassandraLogs	AzureDiagnostics Logs from multiple Azure resources.	No	No	Queries	Yes

Supported resource logs for Microsoft.DocumentDB/mongoClusters

Category	Category display name	Log table	Supports basic log plan	Supports ingestion-time transformation	Example queries	Costs to export
vCoreMongoRequests	vCoreMongoRequests	AzureDiagnostics Logs from multiple Azure resources.	No	No	Queries	Yes

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.

Azure Cosmos DB

Microsoft.DocumentDb/databaseAccounts

• AzureActivity
• CDBDataPlaneRequests
• CDBPartitionKeyStatistics
• CDBPartitionKeyRUConsumption
• CDBQueryRuntimeStatistics
• CDBMongoRequests
• CDBCassandraRequests
• CDBGremlinRequests
• CDBControlPlaneRequests
• AzureMetrics
• AzureDiagnostics. Logs are collected in the AzureDiagnostics table under the resource provider name of MICROSOFT.DOCUMENTDB.

Azure Managed Instance for Apache Cassandra

Microsoft.DocumentDB/cassandraClusters

• AzureActivity
• CassandraAudit
• CassandraLogs

Azure Cosmos DB for MongoDB (vCore)

Microsoft.DocumentDB/mongoClusters

• VCoreMongoRequests

Azure Cosmos DB resource logs properties

The following table lists properties of resource logs in Azure Cosmos DB. The resource logs are collected into Azure Monitor Logs or Azure Storage.

Azure Storage field or property	Azure Monitor Logs property	Description
time	TimeGenerated	The date and time (UTC) when the operation occurred.
resourceId	Resource	The Azure Cosmos DB account for which logs are enabled.
category	Category	For Azure Cosmos DB, DataPlaneRequests, MongoRequests, QueryRuntimeStatistics, PartitionKeyStatistics, PartitionKeyRUConsumption, ControlPlaneRequests, CassandraRequests, GremlinRequests are the available log types.
operationName	OperationName	Name of the operation. The operation name can be Create, Update, Read, ReadFeed, Delete, Replace, Execute, SqlQuery, Query, JSQuery, Head, HeadFeed, or Upsert.
properties	n/a	The contents of this field are described in the rows that follow.
activityId	activityId_g	The unique GUID for the logged operation.
userAgent	userAgent_s	A string that specifies the client user agent from which, the request was sent. The format of user agent is {user agent name}/{version}.
requestResourceType	requestResourceType_s	The type of the resource accessed. This value can be database, container, document, attachment, user, permission, stored procedure, trigger, user-defined function, or an offer.
statusCode	statusCode_s	The response status of the operation.
requestResourceId	ResourceId	The resourceId that pertains to the request. Depending on the operation performed, this value may point to databaseRid, collectionRid, or documentRid.
clientIpAddress	clientIpAddress_s	The client's IP address.
requestCharge	requestCharge_s	The number of RUs that are used by the operation
collectionRid	collectionId_s	The unique ID for the collection.
duration	duration_d	The duration of the operation, in milliseconds.
requestLength	requestLength_s	The length of the request, in bytes.
responseLength	responseLength_s	The length of the response, in bytes.
resourceTokenPermissionId	resourceTokenPermissionId_s	This property indicates the permission ID that you have specified for an alternative authentication method.
resourceTokenPermissionMode	resourceTokenPermissionMode_s	This property indicates the permission mode that you have set when creating the resource token. The permission mode can have values such as "all" or "read".
resourceTokenUserRid	resourceTokenUserRid_s	The value points to the resource ID of the user for alternate authentication methods.
responseLength	responseLength_s	The length of the response, in bytes.

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.

• Microsoft.DocumentDB resource provider operations

Related content

• See Monitor Azure Cosmos DB for a description of monitoring Azure Cosmos DB.
• See Monitor Azure resources with Azure Monitor for details on monitoring Azure resources.