Yandex Managed Service for ClickHouse® metrics
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Updated at March 28, 2024
This section describes the Managed Service for ClickHouse® metrics delivered to Monitoring.
The name of the metric is written in the name
label.
Common labels for all Managed Service for ClickHouse® metrics:
Label | Value |
---|---|
service | Service ID: managed-clickhouse |
resource_type | Resource type: cluster |
resource_id | Cluster ID |
host | Host FQDN |
node | Host type: replica , follower , or leader |
subcluster_name | Subcluster type: clickhouse_subcluster , zookeeper_subcluster |
shard | Shard ID |
CPU metrics
Processor core workload.
Name Type, units |
Description |
---|---|
cpu.fraction DGAUGE , % |
Guaranteed vCPU share |
cpu.guarantee DGAUGE , number |
Guaranteed number of cores |
cpu.limit DGAUGE , number |
Limit on CPU cores in use |
cpu.guest DGAUGE , % |
CPU core usage, guest usage type |
cpu.idle DGAUGE , % |
CPU core usage, idle usage type |
cpu.iowait DGAUGE , % |
CPU core usage, iowait usage type |
cpu.irq DGAUGE , % |
CPU core usage, irq usage type |
cpu.nice DGAUGE , % |
CPU core usage, nice usage type |
cpu.softirq DGAUGE , % |
CPU core usage, softirq usage type |
cpu.steal DGAUGE , % |
CPU core usage, steal usage type |
cpu.system DGAUGE , % |
CPU core usage, system usage type |
cpu.user DGAUGE , % |
CPU core usage, user usage type |
load.avg_15min DGAUGE , % |
Average load over 15 minutes |
load.avg_1min DGAUGE , % |
Average load over 1 minute |
load.avg_5min DGAUGE , % |
Average load over 5 minutes |
Disk metrics
Name Type, unit |
Description |
---|---|
ch_s3_disk_parts_size DGAUGE , bytes |
Space used by MergeTree |
disk.free_bytes DGAUGE , bytes |
Free space |
disk.free_inodes DGAUGE , number |
Number of free inodes |
disk.total_bytes DGAUGE , bytes |
Available space |
disk.total_inodes DGAUGE , number |
Available inodes |
disk.used_bytes DGAUGE , bytes |
Used space |
disk.used_inodes DGAUGE , number |
Used inodes |
Disk operation metrics
Name Type, units |
Description |
---|---|
io.avg_read_time DGAUGE , ms |
Average disk read time |
io.avg_write_time DGAUGE , ms |
Average disk write time |
io.disk*.avg_read_time DGAUGE , ms |
Average read time for a specific disk |
io.disk*.avg_write_time DGAUGE , ms |
Average write time for a specific disk |
io.disk*.read_bytes DGAUGE , bytes per second |
Read speed for a specific disk |
io.disk*.read_count DGAUGE , operations per second |
Read operations per second for a specific disk |
io.disk*.read_merged_count DGAUGE , operations per second |
Merged read operations per second for a specific disk |
io.disk*.utilization DGAUGE , % |
Utilization of a specific disk; disabled for network drives |
io.disk*.write_bytes DGAUGE , bytes per second |
Write speed for a specific disk |
io.disk*.write_count DGAUGE , operations per second |
Number of write operations per second for a specific disk |
io.disk*.write_merged_count DGAUGE , operations per second |
Number of merged write operations per second for a specific disk |
io.read_bytes DGAUGE , bytes/s |
Disk read speed |
io.read_count DGAUGE , operations per second |
Number of read operations per second |
io.read_merged_count DGAUGE , operations per second |
Number of merged read operations per second |
io.utilization DGAUGE , % |
Disk utilization |
io.write_bytes DGAUGE , bytes/s |
Disk write speed |
io.write_count DGAUGE , operations per second |
Number of write operations per second |
io.write_merged_count DGAUGE , operations per second |
Number of merged write operations per second |
RAM metrics
Name Type, units |
Description |
---|---|
mem.guarantee_bytes DGAUGE , bytes |
Guaranteed memory |
mem.limit_bytes DGAUGE , bytes |
Memory limit |
mem.active_bytes DGAUGE , bytes |
Amount of RAM used most often and only freed up when absolutely necessary |
mem.available_bytes DGAUGE , bytes |
RAM usage, available usage type |
mem.buffers_bytes DGAUGE , bytes |
RAM usage, buffers usage type |
mem.cached_bytes DGAUGE , bytes |
RAM usage, cached usage type |
mem.free_bytes DGAUGE , bytes |
Amount of free RAM available, excluding mem.buffers_bytes and mem.cached_bytes |
mem.shared_bytes DGAUGE , bytes |
RAM usage, shared usage type |
mem.total_bytes DGAUGE , bytes |
RAM usage, total usage type |
mem.used_bytes DGAUGE , bytes |
Amount of RAM currently used by the running processes |
Network metrics
Name Type, units |
Description |
---|---|
net.bytes_recv DGAUGE , bytes/s |
Rate of receiving data over the network |
net.bytes_sent DGAUGE , bytes/s |
Rate of sending data over the network |
net.dropin DGAUGE , number |
Packets dropped upon receipt |
net.dropout DGAUGE , number |
Packets dropped when being sent |
net.errin DGAUGE , number |
Number of errors upon receipt |
net.errout DGAUGE , number |
Number of errors at sending |
net.packets_recv DGAUGE , packets per second |
Rate of receiving packets over the network |
net.packets_sent DGAUGE , packets per second |
Rate of sending packets over the network |
Service metrics
System event metrics
ClickHouse® native metrics from the system.events
For each metric, the increment (inc
) and change rate
per unit of time are calculated.
Name Type |
---|
ch_system_events_ArenaAllocBytes_inc DGAUGE |
ch_system_events_ArenaAllocBytes_rate DGAUGE |
ch_system_events_ArenaAllocChunks_inc DGAUGE |
ch_system_events_ArenaAllocChunks_rate DGAUGE |
ch_system_events_BackgroundLoadingMarksTasks_inc DGAUGE |
ch_system_events_BackgroundLoadingMarksTasks_rate DGAUGE |
ch_system_events_CreatedHTTPConnections_inc DGAUGE |
ch_system_events_CreatedHTTPConnections_rate DGAUGE |
ch_system_events_CompileExpressionsBytes_inc DGAUGE |
ch_system_events_CompileExpressionsBytes_rate DGAUGE |
ch_system_events_CompileExpressionsMicroseconds_inc DGAUGE |
ch_system_events_CompileExpressionsMicroseconds_rate DGAUGE |
ch_system_events_CompileFunction_inc DGAUGE |
ch_system_events_CompileFunction_rate DGAUGE |
ch_system_events_CompressedReadBufferBlocks_inc DGAUGE |
ch_system_events_CompressedReadBufferBlocks_rate DGAUGE |
ch_system_events_CompressedReadBufferBytes_inc DGAUGE |
ch_system_events_CompressedReadBufferBytes_rate DGAUGE |
ch_system_events_ContextLock_inc DGAUGE |
ch_system_events_ContextLock_rate DGAUGE |
ch_system_events_ContextLockWaitMicroseconds_inc DGAUGE |
ch_system_events_ContextLockWaitMicroseconds_rate DGAUGE |
ch_system_events_CreatedReadBufferOrdinary_inc DGAUGE |
ch_system_events_CreatedReadBufferOrdinary_rate DGAUGE |
ch_system_events_DiskReadElapsedMicroseconds_inc DGAUGE |
ch_system_events_DiskReadElapsedMicroseconds_rate DGAUGE |
ch_system_events_DiskS3DeleteObjects_inc DGAUGE |
ch_system_events_DiskS3DeleteObjects_rate DGAUGE |
ch_system_events_DiskS3GetObject_inc DGAUGE |
ch_system_events_DiskS3GetObject_rate DGAUGE |
ch_system_events_DiskS3PutObject_inc DGAUGE |
ch_system_events_DiskS3PutObject_rate DGAUGE |
ch_system_events_DiskS3ReadMicroseconds_inc DGAUGE |
ch_system_events_DiskS3ReadMicroseconds_rate DGAUGE |
ch_system_events_DiskS3ReadRequestsCount_inc DGAUGE |
ch_system_events_DiskS3ReadRequestsCount_rate DGAUGE |
ch_system_events_DiskS3WriteMicroseconds_inc DGAUGE |
ch_system_events_DiskS3WriteMicroseconds_rate DGAUGE |
ch_system_events_DiskS3WriteRequestsCount_inc DGAUGE |
ch_system_events_DiskS3WriteRequestsCount_rate DGAUGE |
ch_system_events_DiskWriteElapsedMicroseconds_inc DGAUGE |
ch_system_events_DiskWriteElapsedMicroseconds_rate DGAUGE |
ch_system_events_FailedInsertQuery_inc DGAUGE |
ch_system_events_FailedInsertQuery_rate DGAUGE |
ch_system_events_FailedQuery_inc DGAUGE |
ch_system_events_FailedQuery_rate DGAUGE |
ch_system_events_FailedSelectQuery_inc DGAUGE |
ch_system_events_FailedSelectQuery_rate DGAUGE |
ch_system_events_FileOpen_inc DGAUGE |
ch_system_events_FileOpen_rate DGAUGE |
ch_system_events_FileSync_inc DGAUGE |
ch_system_events_FileSync_rate DGAUGE |
ch_system_events_FileSyncElapsedMicroseconds_inc DGAUGE |
ch_system_events_FileSyncElapsedMicroseconds_rate DGAUGE |
ch_system_events_FunctionExecute_inc DGAUGE |
ch_system_events_FunctionExecute_rate DGAUGE |
ch_system_events_HardPageFaults_inc DGAUGE |
ch_system_events_HardPageFaults_rate DGAUGE |
ch_system_events_IOBufferAllocBytes_inc DGAUGE |
ch_system_events_IOBufferAllocBytes_rate DGAUGE |
ch_system_events_IOBufferAllocs_inc DGAUGE |
ch_system_events_IOBufferAllocs_rate DGAUGE |
ch_system_events_LoadedMarksCount_inc DGAUGE |
ch_system_events_LoadedMarksCount_rate DGAUGE |
ch_system_events_LoadedMarksMemoryBytes_inc DGAUGE |
ch_system_events_LoadedMarksMemoryBytes_rate DGAUGE |
ch_system_events_LogDebug_inc DGAUGE |
ch_system_events_LogDebug_rate DGAUGE |
ch_system_events_LogError_inc DGAUGE |
ch_system_events_LogError_rate DGAUGE |
ch_system_events_LogInfo_inc DGAUGE |
ch_system_events_LogInfo_rate DGAUGE |
ch_system_events_LogWarning_inc DGAUGE |
ch_system_events_LogWarning_rate DGAUGE |
ch_system_events_InsertQueryTimeMicroseconds_inc DGAUGE |
ch_system_events_InsertQueryTimeMicroseconds_rate DGAUGE |
ch_system_events_InsertQuery_inc DGAUGE |
ch_system_events_InsertQuery_rate DGAUGE |
ch_system_events_InsertedBytes_inc DGAUGE |
ch_system_events_InsertedCompactParts_inc DGAUGE |
ch_system_events_InsertedCompactParts_rate DGAUGE |
ch_system_events_InsertedBytes_rate DGAUGE |
ch_system_events_InsertedRows_inc DGAUGE |
ch_system_events_InsertedRows_rate DGAUGE |
ch_system_events_MainConfigLoads_inc DGAUGE |
ch_system_events_MainConfigLoads_rate DGAUGE |
ch_system_events_MergeTreeDataWriterBlocksAlreadySorted_inc DGAUGE |
ch_system_events_MergeTreeDataWriterBlocksAlreadySorted_rate DGAUGE |
ch_system_events_MergeTreeDataWriterBlocks_inc DGAUGE |
ch_system_events_MergeTreeDataWriterBlocks_rate DGAUGE |
ch_system_events_MergeTreeDataWriterCompressedBytes_inc DGAUGE |
ch_system_events_MergeTreeDataWriterCompressedBytes_rate DGAUGE |
ch_system_events_MergeTreeDataWriterRows_inc DGAUGE |
ch_system_events_MergeTreeDataWriterRows_rate DGAUGE |
ch_system_events_MergeTreeDataWriterUncompressedBytes_inc DGAUGE |
ch_system_events_MergeTreeDataWriterUncompressedBytes_rate DGAUGE |
ch_system_events_Merge_inc DGAUGE |
ch_system_events_Merge_rate DGAUGE |
ch_system_events_MergedIntoCompactParts_inc DGAUGE |
ch_system_events_MergedIntoCompactParts_rate DGAUGE |
ch_system_events_MergedRows_inc DGAUGE |
ch_system_events_MergedRows_rate DGAUGE |
ch_system_events_MergedUncompressedBytes_inc DGAUGE |
ch_system_events_MergedUncompressedBytes_rate DGAUGE |
ch_system_events_MergesTimeMilliseconds_inc DGAUGE |
ch_system_events_MergesTimeMilliseconds_rate DGAUGE |
ch_system_events_NetworkReceiveBytes_inc DGAUGE |
ch_system_events_NetworkReceiveBytes_rate DGAUGE |
ch_system_events_NetworkReceiveElapsedMicroseconds_inc DGAUGE |
ch_system_events_NetworkReceiveElapsedMicroseconds_rate DGAUGE |
ch_system_events_NetworkSendBytes_inc DGAUGE |
ch_system_events_NetworkSendBytes_rate DGAUGE |
ch_system_events_NetworkSendElapsedMicroseconds_inc DGAUGE |
ch_system_events_NetworkSendElapsedMicroseconds_rate DGAUGE |
ch_system_events_OSCPUVirtualTimeMicroseconds_inc DGAUGE |
ch_system_events_OSCPUVirtualTimeMicroseconds_rate DGAUGE |
ch_system_events_OSCPUWaitMicroseconds_inc DGAUGE |
ch_system_events_OSCPUWaitMicroseconds_rate DGAUGE |
ch_system_events_OSIOWaitMicroseconds_inc DGAUGE |
ch_system_events_OSIOWaitMicroseconds_rate DGAUGE |
ch_system_events_OSReadBytes_inc DGAUGE |
ch_system_events_OSReadBytes_rate DGAUGE |
ch_system_events_OSReadChars_inc DGAUGE |
ch_system_events_OSReadChars_rate DGAUGE |
ch_system_events_OSWriteBytes_inc DGAUGE |
ch_system_events_OSWriteBytes_rate DGAUGE |
ch_system_events_OSWriteChars_inc DGAUGE |
ch_system_events_OSWriteChars_rate DGAUGE |
ch_system_events_OtherQueryTimeMicroseconds_inc DGAUGE |
ch_system_events_OtherQueryTimeMicroseconds_rate DGAUGE |
ch_system_events_PartsLockHoldMicroseconds_inc DGAUGE |
ch_system_events_PartsLockHoldMicroseconds_rate DGAUGE |
ch_system_events_PartsLockWaitMicroseconds_inc DGAUGE |
ch_system_events_PartsLockWaitMicroseconds_rate DGAUGE |
ch_system_events_QueriesWithSubqueries_inc DGAUGE |
ch_system_events_QueriesWithSubqueries_rate DGAUGE |
ch_system_events_OpenedFileCacheHits_inc DGAUGE |
ch_system_events_OpenedFileCacheHits_rate DGAUGE |
ch_system_events_OpenedFileCacheMisses_inc DGAUGE |
ch_system_events_OpenedFileCacheMisses_rate DGAUGE |
ch_system_events_QueryProfilerRuns_inc DGAUGE |
ch_system_events_QueryProfilerRuns_rate DGAUGE |
ch_system_events_QueryTimeMicroseconds_inc DGAUGE |
ch_system_events_QueryTimeMicroseconds_rate DGAUGE |
ch_system_events_Query_inc DGAUGE |
ch_system_events_Query_rate DGAUGE |
ch_system_events_RWLockAcquiredReadLocks_inc DGAUGE |
ch_system_events_RWLockAcquiredReadLocks_rate DGAUGE |
ch_system_events_RWLockReadersWaitMilliseconds_inc DGAUGE |
ch_system_events_RWLockReadersWaitMilliseconds_rate DGAUGE |
ch_system_events_S3DeleteObjects_inc DGAUGE |
ch_system_events_S3DeleteObjects_rate DGAUGE |
ch_system_events_S3GetObject_inc DGAUGE |
ch_system_events_S3GetObject_rate DGAUGE |
ch_system_events_S3PutObject_inc DGAUGE |
ch_system_events_S3PutObject_rate DGAUGE |
ch_system_events_S3ReadMicroseconds_inc DGAUGE |
ch_system_events_S3ReadMicroseconds_rate DGAUGE |
ch_system_events_S3ReadRequestsCount_inc DGAUGE |
ch_system_events_S3ReadRequestsCount_rate DGAUGE |
ch_system_events_S3WriteMicroseconds_inc DGAUGE |
ch_system_events_S3WriteMicroseconds_rate DGAUGE |
ch_system_events_S3WriteRequestsCount_inc DGAUGE |
ch_system_events_S3WriteRequestsCount_rate DGAUGE |
ch_system_events_ReadBufferFromFileDescriptorReadBytes_inc DGAUGE |
ch_system_events_ReadBufferFromFileDescriptorReadBytes_rate DGAUGE |
ch_system_events_ReadBufferFromS3Bytes_inc DGAUGE |
ch_system_events_ReadBufferFromS3Bytes_rate DGAUGE |
ch_system_events_ReadBufferFromS3InitMicroseconds_inc DGAUGE |
ch_system_events_ReadBufferFromS3InitMicroseconds_rate DGAUGE |
ch_system_events_ReadBufferFromS3Microseconds_inc DGAUGE |
ch_system_events_ReadBufferFromS3Microseconds_rate DGAUGE |
ch_system_events_ReadBufferFromS3PreservedSessions_inc DGAUGE |
ch_system_events_ReadBufferFromS3PreservedSessions_rate DGAUGE |
ch_system_events_ReadBufferFromFileDescriptorRead_inc DGAUGE |
ch_system_events_ReadBufferFromFileDescriptorRead_rate DGAUGE |
ch_system_events_ReadCompressedBytes_inc DGAUGE |
ch_system_events_ReadCompressedBytes_rate DGAUGE |
ch_system_events_RealTimeMicroseconds_inc DGAUGE |
ch_system_events_RealTimeMicroseconds_rate DGAUGE |
ch_system_events_RegexpCreated_inc DGAUGE |
ch_system_events_RegexpCreated_rate DGAUGE |
ch_system_events_RemoteFSBuffers_inc DGAUGE |
ch_system_events_RemoteFSBuffers_rate DGAUGE |
ch_system_events_RemoteFSSeeks_inc DGAUGE |
ch_system_events_RemoteFSSeeks_rate DGAUGE |
ch_system_events_RemoteFSSeeksWithReset_inc DGAUGE |
ch_system_events_RemoteFSSeeksWithReset_rate DGAUGE |
ch_system_events_RemoteFSUnprefetchedBytes_inc DGAUGE |
ch_system_events_RemoteFSUnprefetchedBytes_rate DGAUGE |
ch_system_events_RemoteFSUnprefetchedReads_inc DGAUGE |
ch_system_events_RemoteFSUnprefetchedReads_rate DGAUGE |
ch_system_events_Seek_inc DGAUGE |
ch_system_events_Seek_rate DGAUGE |
ch_system_events_SelectQueryTimeMicroseconds_inc DGAUGE |
ch_system_events_SelectQueryTimeMicroseconds_rate DGAUGE |
ch_system_events_ServerStartupMilliseconds_inc DGAUGE |
ch_system_events_ServerStartupMilliseconds_rate DGAUGE |
ch_system_events_SelectQuery_inc DGAUGE |
ch_system_events_SelectQuery_rate DGAUGE |
ch_system_events_SelectedBytes_inc DGAUGE |
ch_system_events_SelectedBytes_rate DGAUGE |
ch_system_events_SelectedRows_inc DGAUGE |
ch_system_events_SelectedRows_rate DGAUGE |
ch_system_events_SelectQueriesWithSubqueries_inc DGAUGE |
ch_system_events_SelectQueriesWithSubqueries_rate DGAUGE |
ch_system_events_SoftPageFaults_inc DGAUGE |
ch_system_events_SoftPageFaults_rate DGAUGE |
ch_system_events_SynchronousRemoteReadWaitMicroseconds_inc DGAUGE |
ch_system_events_SynchronousRemoteReadWaitMicroseconds_rate DGAUGE |
ch_system_events_SystemTimeMicroseconds_inc DGAUGE |
ch_system_events_SystemTimeMicroseconds_rate DGAUGE |
ch_system_events_UserTimeMicroseconds_inc DGAUGE |
ch_system_events_UserTimeMicroseconds_rate DGAUGE |
ch_system_events_WaitMarksLoadMicroseconds_inc DGAUGE |
ch_system_events_WaitMarksLoadMicroseconds_rate DGAUGE |
ch_system_events_WriteBufferFromFileDescriptorWrite_inc DGAUGE |
ch_system_events_WriteBufferFromFileDescriptorWrite_rate DGAUGE |
ch_system_events_WriteBufferFromFileDescriptorWriteBytes_inc DGAUGE |
ch_system_events_WriteBufferFromFileDescriptorWriteBytes_rate DGAUGE |
ch_system_events_WriteBufferFromS3Bytes_inc DGAUGE |
ch_system_events_WriteBufferFromS3Bytes_rate DGAUGE |
ch_system_events_WriteBufferFromS3Microseconds_inc DGAUGE |
ch_system_events_WriteBufferFromS3Microseconds_rate DGAUGE |
Current event metrics
ClickHouse® native metrics from the system.metrics
Name Type |
---|
ch_system_metrics_ActiveTimersInQueryProfiler DGAUGE |
ch_system_metrics_AggregatorThreads DGAUGE |
ch_system_metrics_AggregatorThreadsActive DGAUGE |
ch_system_metrics_AsynchronousInsertThreads DGAUGE |
ch_system_metrics_AsynchronousInsertThreadsActive DGAUGE |
ch_system_metrics_AsynchronousReadWait DGAUGE |
ch_system_metrics_AsyncInsertCacheSize DGAUGE |
ch_system_metrics_BackgroundBufferFlushSchedulePoolSize DGAUGE |
ch_system_metrics_BackgroundBufferFlushSchedulePoolTask DGAUGE |
ch_system_metrics_BackgroundCommonPoolSize DGAUGE |
ch_system_metrics_BackgroundCommonPoolTask DGAUGE |
ch_system_metrics_BackgroundDistributedSchedulePoolSize DGAUGE |
ch_system_metrics_BackgroundDistributedSchedulePoolTask DGAUGE |
ch_system_metrics_BackgroundFetchesPoolSize DGAUGE |
ch_system_metrics_BackgroundFetchesPoolTask DGAUGE |
ch_system_metrics_BackgroundMergesAndMutationsPoolSize DGAUGE |
ch_system_metrics_BackgroundMergesAndMutationsPoolTask DGAUGE |
ch_system_metrics_BackgroundMessageBrokerSchedulePoolSize DGAUGE |
ch_system_metrics_BackgroundMessageBrokerSchedulePoolTask DGAUGE |
ch_system_metrics_BackgroundMovePoolSize DGAUGE |
ch_system_metrics_BackgroundMovePoolTask DGAUGE |
ch_system_metrics_BackgroundSchedulePoolSize DGAUGE |
ch_system_metrics_BackgroundSchedulePoolTask DGAUGE |
ch_system_metrics_BackgroundSchedulePoolTask DGAUGE |
ch_system_metrics_BackupsIOThreads DGAUGE |
ch_system_metrics_BackupsIOThreadsActive DGAUGE |
ch_system_metrics_BackupsThreads DGAUGE |
ch_system_metrics_BackupsThreadsActive DGAUGE |
ch_system_metrics_BrokenDistributedFilesToInsert DGAUGE |
ch_system_metrics_BrokenDistributedFilesToInsert DGAUGE |
ch_system_metrics_CacheDetachedFileSegments DGAUGE |
ch_system_metrics_CacheDictionaryThreads DGAUGE |
ch_system_metrics_CacheDictionaryThreadsActive DGAUGE |
ch_system_metrics_CacheDictionaryUpdateQueueBatches DGAUGE |
ch_system_metrics_CacheDictionaryUpdateQueueKeys DGAUGE |
ch_system_metrics_CacheFileSegments DGAUGE |
ch_system_metrics_Connection DGAUGE |
ch_system_metrics_ContextLockWait DGAUGE |
ch_system_metrics_CreatedTimersInQueryProfiler DGAUGE |
ch_system_metrics_DatabaseCatalogThreads DGAUGE |
ch_system_metrics_DatabaseCatalogThreadsActive DGAUGE |
ch_system_metrics_DatabaseOnDiskThreads DGAUGE |
ch_system_metrics_DatabaseOnDiskThreadsActive DGAUGE |
ch_system_metrics_DatabaseOrdinaryThreads DGAUGE |
ch_system_metrics_DatabaseOrdinaryThreadsActive DGAUGE |
ch_system_metrics_DDLWorkerThreads DGAUGE |
ch_system_metrics_DDLWorkerThreadsActive DGAUGE |
ch_system_metrics_DelayedInserts DGAUGE |
ch_system_metrics_DestroyAggregatesThreads DGAUGE |
ch_system_metrics_DestroyAggregatesThreadsActive DGAUGE |
ch_system_metrics_DictCacheRequests DGAUGE |
ch_system_metrics_DiskObjectStorageAsyncThreads DGAUGE |
ch_system_metrics_DiskObjectStorageAsyncThreadsActive DGAUGE |
ch_system_metrics_DiskSpaceReservedForMerge DGAUGE |
ch_system_metrics_DistributedBytesToInsert DGAUGE |
ch_system_metrics_DistributedFilesToInsert DGAUGE |
ch_system_metrics_DistributedInsertThreads DGAUGE |
ch_system_metrics_DistributedInsertThreadsActive DGAUGE |
ch_system_metrics_DistributedSend DGAUGE |
ch_system_metrics_EphemeralNode DGAUGE |
ch_system_metrics_FilesystemCacheDelayedCleanupElements DGAUGE |
ch_system_metrics_FilesystemCacheDownloadQueueElements DGAUGE |
ch_system_metrics_FilesystemCacheElements DGAUGE |
ch_system_metrics_FilesystemCacheReadBuffers DGAUGE |
ch_system_metrics_FilesystemCacheSize DGAUGE |
ch_system_metrics_FilesystemCacheSizeLimit DGAUGE |
ch_system_metrics_GlobalThread DGAUGE |
ch_system_metrics_GlobalThreadActive DGAUGE |
ch_system_metrics_HashedDictionaryThreads DGAUGE |
ch_system_metrics_HashedDictionaryThreadsActive DGAUGE |
ch_system_metrics_HTTPConnection DGAUGE |
ch_system_metrics_IDiskCopierThreads DGAUGE |
ch_system_metrics_IDiskCopierThreadsActive DGAUGE |
ch_system_metrics_InterserverConnection DGAUGE |
ch_system_metrics_IOPrefetchThreads DGAUGE |
ch_system_metrics_IOPrefetchThreadsActive DGAUGE |
ch_system_metrics_IOThreads DGAUGE |
ch_system_metrics_IOThreadsActive DGAUGE |
ch_system_metrics_IOUringInFlightEvents DGAUGE |
ch_system_metrics_IOUringPendingEvents DGAUGE |
ch_system_metrics_IOWriterThreads DGAUGE |
ch_system_metrics_IOWriterThreadsActive DGAUGE |
ch_system_metrics_KafkaAssignedPartitions DGAUGE |
ch_system_metrics_KafkaBackgroundReads DGAUGE |
ch_system_metrics_KafkaConsumers DGAUGE |
ch_system_metrics_KafkaConsumersInUse DGAUGE |
ch_system_metrics_KafkaConsumersWithAssignment DGAUGE |
ch_system_metrics_KafkaLibrdkafkaThreads DGAUGE |
ch_system_metrics_KafkaProducers DGAUGE |
ch_system_metrics_KafkaWrites DGAUGE |
ch_system_metrics_KeeperAliveConnections DGAUGE |
ch_system_metrics_KeeperOutstandingRequets DGAUGE |
ch_system_metrics_LocalThread DGAUGE |
ch_system_metrics_LocalThreadActive DGAUGE |
ch_system_metrics_MarksLoaderThreads DGAUGE |
ch_system_metrics_MarksLoaderThreadsActive DGAUGE |
ch_system_metrics_MaxDDLEntryID DGAUGE |
ch_system_metrics_MaxPushedDDLEntryID DGAUGE |
ch_system_metrics_MemoryTracking DGAUGE |
ch_system_metrics_Merge DGAUGE |
ch_system_metrics_MergesMutationsMemoryTracking DGAUGE |
ch_system_metrics_MergeTreeAllRangesAnnouncementsSent DGAUGE |
ch_system_metrics_MergeTreeBackgroundExecutorThreads DGAUGE |
ch_system_metrics_MergeTreeBackgroundExecutorThreadsActive DGAUGE |
ch_system_metrics_MergeTreeDataSelectExecutorThreads DGAUGE |
ch_system_metrics_MergeTreeDataSelectExecutorThreadsActive DGAUGE |
ch_system_metrics_MergeTreeOutdatedPartsLoaderThreads DGAUGE |
ch_system_metrics_MergeTreeOutdatedPartsLoaderThreadsActive DGAUGE |
ch_system_metrics_MergeTreePartsCleanerThreads DGAUGE |
ch_system_metrics_MergeTreePartsCleanerThreadsActive DGAUGE |
ch_system_metrics_MergeTreePartsLoaderThreads DGAUGE |
ch_system_metrics_MergeTreePartsLoaderThreadsActive DGAUGE |
ch_system_metrics_MergeTreeReadTaskRequestsSent DGAUGE |
ch_system_metrics_MMappedAllocBytes DGAUGE |
ch_system_metrics_MMappedAllocs DGAUGE |
ch_system_metrics_MMappedFileBytes DGAUGE |
ch_system_metrics_MMappedFiles DGAUGE |
ch_system_metrics_Move DGAUGE |
ch_system_metrics_MySQLConnection DGAUGE |
ch_system_metrics_NetworkReceive DGAUGE |
ch_system_metrics_NetworkSend DGAUGE |
ch_system_metrics_ObjectStorageAzureThreads DGAUGE |
ch_system_metrics_ObjectStorageAzureThreadsActive DGAUGE |
ch_system_metrics_ObjectStorageS3Threads DGAUGE |
ch_system_metrics_ObjectStorageS3ThreadsActive DGAUGE |
ch_system_metrics_OpenFileForRead DGAUGE |
ch_system_metrics_OpenFileForWrite DGAUGE |
ch_system_metrics_OutdatedPartsLoadingThreads DGAUGE |
ch_system_metrics_OutdatedPartsLoadingThreadsActive DGAUGE |
ch_system_metrics_ParallelFormattingOutputFormatThreads DGAUGE |
ch_system_metrics_ParallelFormattingOutputFormatThreadsActive DGAUGE |
ch_system_metrics_ParallelParsingInputFormatThreads DGAUGE |
ch_system_metrics_ParallelParsingInputFormatThreadsActive DGAUGE |
ch_system_metrics_ParquetDecoderThreads DGAUGE |
ch_system_metrics_ParquetDecoderThreadsActive DGAUGE |
ch_system_metrics_ParquetEncoderThreads DGAUGE |
ch_system_metrics_ParquetEncoderThreadsActive DGAUGE |
ch_system_metrics_PartMutation DGAUGE |
ch_system_metrics_PartsActive DGAUGE |
ch_system_metrics_PartsCommitted DGAUGE |
ch_system_metrics_PartsCompact DGAUGE |
ch_system_metrics_PartsDeleteOnDestroy DGAUGE |
ch_system_metrics_PartsDeleting DGAUGE |
ch_system_metrics_PartsInMemory DGAUGE |
ch_system_metrics_PartsOutdated DGAUGE |
ch_system_metrics_PartsPreActive DGAUGE |
ch_system_metrics_PartsPreCommitted DGAUGE |
ch_system_metrics_PartsTemporary DGAUGE |
ch_system_metrics_PartsWide DGAUGE |
ch_system_metrics_PendingAsyncInsert DGAUGE |
ch_system_metrics_PostgreSQLConnection DGAUGE |
ch_system_metrics_Query DGAUGE |
ch_system_metrics_QueryPipelineExecutorThreads DGAUGE |
ch_system_metrics_QueryPipelineExecutorThreadsActive DGAUGE |
ch_system_metrics_QueryPreempted DGAUGE |
ch_system_metrics_QueryThread DGAUGE |
ch_system_metrics_Read DGAUGE |
ch_system_metrics_ReadonlyReplica DGAUGE |
ch_system_metrics_ReadTaskRequestsSent DGAUGE |
ch_system_metrics_RemoteRead DGAUGE |
ch_system_metrics_ReplicatedChecks DGAUGE |
ch_system_metrics_ReplicatedFetch DGAUGE |
ch_system_metrics_ReplicatedSend DGAUGE |
ch_system_metrics_RestartReplicaThreads DGAUGE |
ch_system_metrics_RestartReplicaThreadsActive DGAUGE |
ch_system_metrics_RestoreThreads DGAUGE |
ch_system_metrics_RestoreThreadsActive DGAUGE |
ch_system_metrics_Revision DGAUGE |
ch_system_metrics_RWLockActiveReaders DGAUGE |
ch_system_metrics_RWLockActiveTotal DGAUGE |
ch_system_metrics_RWLockActiveWriters DGAUGE |
ch_system_metrics_RWLockWaitingReaders DGAUGE |
ch_system_metrics_RWLockWaitingTotal DGAUGE |
ch_system_metrics_RWLockWaitingWriters DGAUGE |
ch_system_metrics_S3Requests DGAUGE |
ch_system_metrics_SendExternalTables DGAUGE |
ch_system_metrics_SendScalars DGAUGE |
ch_system_metrics_StartupSystemTablesThreads DGAUGE |
ch_system_metrics_StartupSystemTablesThreadsActive DGAUGE |
ch_system_metrics_StorageBufferBytes DGAUGE |
ch_system_metrics_StorageBufferRows DGAUGE |
ch_system_metrics_StorageDistributedThreads DGAUGE |
ch_system_metrics_StorageDistributedThreadsActive DGAUGE |
ch_system_metrics_StorageHiveThreads DGAUGE |
ch_system_metrics_StorageHiveThreadsActive DGAUGE |
ch_system_metrics_StorageS3Threads DGAUGE |
ch_system_metrics_StorageS3ThreadsActive DGAUGE |
ch_system_metrics_SystemReplicasThreads DGAUGE |
ch_system_metrics_SystemReplicasThreadsActive DGAUGE |
ch_system_metrics_TablesLoaderThreads DGAUGE |
ch_system_metrics_TablesLoaderThreadsActive DGAUGE |
ch_system_metrics_TablesToDropQueueSize DGAUGE |
ch_system_metrics_TCPConnection DGAUGE |
ch_system_metrics_TemporaryFilesForAggregation DGAUGE |
ch_system_metrics_TemporaryFilesForJoin DGAUGE |
ch_system_metrics_TemporaryFilesForSort DGAUGE |
ch_system_metrics_TemporaryFilesUnknown DGAUGE |
ch_system_metrics_ThreadPoolFSReaderThreads DGAUGE |
ch_system_metrics_ThreadPoolFSReaderThreadsActive DGAUGE |
ch_system_metrics_ThreadPoolRemoteFSReaderThreads DGAUGE |
ch_system_metrics_ThreadPoolRemoteFSReaderThreadsActive DGAUGE |
ch_system_metrics_ThreadsInOvercommitTracker DGAUGE |
ch_system_metrics_TotalTemporaryFiles DGAUGE |
ch_system_metrics_VersionInteger DGAUGE |
ch_system_metrics_Write DGAUGE |
ch_system_metrics_ZooKeeperRequest DGAUGE |
ch_system_metrics_ZooKeeperSession DGAUGE |
ch_system_metrics_ZooKeeperWatch DGAUGE |
Query queue metrics
ClickHouse® native metrics from the system.query_log
For each metric, the increment per unit of time (second) is calculated.
Name Type |
---|
ch_system_query_log_insert_requests_inc DGAUGE |
ch_system_query_log_read_bytes_inc DGAUGE |
ch_system_query_log_read_rows_inc DGAUGE |
ch_system_query_log_requests_inc DGAUGE |
ch_system_query_log_result_bytes_inc DGAUGE |
ch_system_query_log_result_rows_inc DGAUGE |
ch_system_query_log_select_requests_inc DGAUGE |
ch_system_query_log_written_bytes_inc DGAUGE |
ch_system_query_log_written_rows_inc DGAUGE |
Replication metrics
Name Type, units |
Description |
---|---|
ch_replication-future_parts DGAUGE , number |
Number of data parts after MERGE and INSERT operations are completed |
ch_replication-inserts_in_queue DGAUGE , number |
Number of enqueued data parts to be inserted |
ch_replication-is_alive DGAUGE , 0/1 |
Replication performance indicator.1 if DB replication is alive, 0 if it is not. |
ch_replication-max_absolute_delay DGAUGE , seconds |
Maximum replication delay |
ch_replication-merges_in_queue DGAUGE , number |
Merges enqueued |
ch_replication-parts_to_check DGAUGE , number |
Number of data parts to be checked |
ch_replication-queue_size DGAUGE , number |
Merge and insert queue size |
ch_replication-tables DGAUGE , number |
Number of replicated tables |
System metrics
Name Type, units |
Description |
---|---|
ch_config_merge_tree_parts_to_throw_insert DGAUGE , number |
Threshold value of active table data parts for ClickHouse® to throw a Too many parts ... exception if exceeded. Set in the settings. It pays to analyze it along with the ch_system_async_metrics_MaxPartCountForPartition metric. |
ch_local_disk_parts_size DGAUGE , bytes |
Local disk partition size |
ch_system_async_metrics_MaxPartCountForPartition DGAUGE , number |
Maximum number of data parts per partition |
ch_system_async_metrics_NumberOfDatabases DGAUGE , number |
Total number of databases on the server |
ch_system_async_metrics_NumberOfTables DGAUGE , number |
Total number of tables across all databases on the server, excluding those databases that cannot contain MergeTree tables. Excluded database engines are those that generate a set of tables on the fly, such as Lazy, MySQL®, PostgreSQL, and SQLite. |
ch_system_async_metrics_NumberOfTablesSystem DGAUGE , number |
Total number of system database tables stored as MergeTree tables on the server |
ch_system_async_metrics_ReplicasMaxAbsoluteDelay DGAUGE , seconds |
Maximum replication delay |
ch_system_async_metrics_ReplicasMaxInsertsInQueue DGAUGE , number |
Maximum number of queued (still subject to replication) insert operations in the replicated tables |
ch_system_async_metrics_ReplicasMaxMergesInQueue DGAUGE , number |
Maximum number of queued merge operations (to be applied yet) for the replicated tables |
ch_system_async_metrics_ReplicasMaxQueueSize DGAUGE , number |
Maximum replication queue size |
ch_system_async_metrics_ReplicasMaxRelativeDelay DGAUGE , seconds |
Maximum difference between the replica delay and the delay of the most recent replica of the same table in different replicated tables |
ch_system_async_metrics_ReplicasSumInsertsInQueue DGAUGE , number |
Total number of queued (still subject to replication) insert operations for the replicated tables |
ch_system_async_metrics_ReplicasSumMergesInQueue DGAUGE , number |
Total number of queued merge operations (to be applied yet) across the replicated tables |
ch_system_async_metrics_ReplicasSumQueueSize DGAUGE , bytes |
Total number of queued operations (e.g., fetch, merge) across the replicated tables |
ch_system_async_metrics_TotalBytesOfMergeTreeTables DGAUGE , bytes |
Total number of compressed bytes (including data and indexes) across all MergeTree tables |
ch_system_async_metrics_TotalBytesOfMergeTreeTablesSystem DGAUGE , bytes |
Total number of compressed bytes (including data and indexes) in MergeTree tables within the system database |
ch_system_async_metrics_TotalPartsOfMergeTreeTables DGAUGE , number |
Total number of data parts across all MergeTree tables. Values greater than 10,000 will impact the server startup time and may indicate a bad choice of partition key. |
ch_system_async_metrics_TotalPartsOfMergeTreeTablesSystem DGAUGE , number |
Total number of data parts in MergeTree tables within the system database |
ch_system_async_metrics_TotalRowsOfMergeTreeTables DGAUGE , number |
Total number of strings (records) across all MergeTree tables |
ch_system_async_metrics_TotalRowsOfMergeTreeTablesSystem DGAUGE , number |
Total number of strings (records) in MergeTree tables within the system database |
ch_system_async_metrics_Uptime DGAUGE , seconds |
Total server uptime in seconds. Includes the server initialization time before it starts accepting connections. |
Other metrics
Name Type, units |
Description |
---|---|
can_read DGAUGE , 0/1 |
Read access indicator.1 if a cluster is available for reads, 0 if it is not. |
can_write DGAUGE , 0/1 |
Write access indicator.1 if a cluster is available for writes, 0 if it is not. |
is_alive DGAUGE , 0/1 |
Host health indicator.1 if a DB host is alive, 0 if it is not. |
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