| Metric Name |
Unit |
Description |
| BlockCacheHit |
- |
Number of block cache hits. When the cache efficiency is confirmed, use the value of this metric instead of that of cache_hits. |
| BlockCacheMiss |
- |
Number of block cache misses. When the cache efficiency is confirmed, use the value of this metric instead of that of cache_misses. |
| ActiveScanners |
- |
Number of active scanners |
| ExpiredScanners |
- |
Number of expired scanners |
| OpenClientSessions |
- |
Number of opened sessions of tablet copying client on the server |
| OpemSourceSessions |
- |
Number of opened sessions of tablet copying source on the server |
| TabletBootstrapping |
- |
Number of bootstrapping tablets |
| TabletFailed |
- |
Number of failed tablets |
| TabletInitialized |
- |
Number of initialized tablets |
| TabletNotInitialized |
- |
Number of uninitialized tablets |
| TabletRunning |
- |
Number of running tablets or threads |
| TabletShutdown |
- |
Number of tablets shut down |
| TabletStopped |
- |
Number of stopped tablets |
| TabletStopping |
- |
Number of stopping tablets |
| TotalCount |
- |
Total number of operations |
| Min |
s |
Minimum number of waiting tasks, minimum running time, minimum waiting time, or minimum processing time in the queue |
| Max |
s |
Maximum number of waiting tasks, maximum running time, maximum waiting time, or maximum processing time in the queue |
| Mean |
s |
Average number of waiting tasks, average running time, average waiting time, or average processing time in the queue |
| Percentile_99_9 |
s |
99.9th percentile value of waiting tasks, 99.9th percentile value of running time, 99.9th percentile value of waiting time, or 99.9th percentile value of processing time in the queue |
| BlockCacheUsage |
Bytes |
Memory occupied by block cache |
| FileCacheHit |
- |
Number of file descriptor cache hits. When the cache efficiency is confirmed, use the value of this metric instead of that of cache_hits. |
| FileCacheMiss |
- |
Number of file descriptor cache misses. When the cache efficiency is confirmed, use the value of this metric instead of that of cache_misses. |
| FileCacheUsage |
- |
Number of file cache entries |
| BlockUnderManagement |
- |
Number of data blocks under management |
| BlockOpenReading |
- |
Number of data blocks open for reading |
| BlockOpenWriting |
- |
Number of data blocks open for writing |
| BytesUnderManagement |
Bytes |
Number of bytes of data blocks under management |
| ContainersUnderManagement |
- |
Number of log block containers |
| FullContainersUnderManagement |
- |
Number of full log block containers |
| CpuStime |
ms |
Total system CPU time used by processes |
| CpuUtime |
ms |
Total user CPU time used by processes |
| DataDirsFailed |
- |
Number of data directories in a failed disk |
| DataDirsFull |
- |
Number of data directories in a full disk |
| AllocatedBytes |
- |
Number of bytes used by applications. This usually does not match the memory usage reported by the operating system because it does not include TCMalloc overhead or memory fragments. |
| ErrorMessages |
- |
Number of ERROR log messages sent by applications |
| WarningMessages |
- |
Number of WARNING log messages send by applications |
| InvoluntarySwitches |
- |
Number of involuntary context switches |
| VoluntarySwitches |
- |
Number of voluntary context switches |
| SpinlockContentionTime |
ms |
Time consumed by internal spinlock contention since the server starts |
| OversizedWriteRequests |
- |
Number of oversize write requests for system catalog tablet rejected after startup |
| HybridClockError |
ms |
Biggest server clock error. 2^64-1 is returned when the basic clock cannot be read. |
| HybridClockTimestamp |
ms |
Hybrid clock timestamp. 2^64-1 is returned when the basic clock cannot be read. |
| ClusterReplicaSkew |
- |
Difference between the number of replicas on the tablet server hosting the most replicas and the number of replicas on the tablet server hosting the fewest replicas |
| NumRaftLeaders |
- |
Number of raft leader replicas on the tablet |
| HeapSize |
Bytes |
System memory reserved by TCMalloc |
| CurrentThreadCacheBytes |
Bytes |
Memory measure used by TCMalloc for small objects |
| TotalThreadCacheBytes |
Bytes |
Memory limit used by TCMalloc for small objects |
| FreeBytes |
Bytes |
Number of bytes of the available mapped pages in the page heap |
| UnMappedBytes |
Bytes |
Number of bytes of the available unmapped pages in the page heap |
| ConnectionsAccepted |
- |
Number TCP connections to RPC servers |
| QueueOverflow |
- |
Number of RPCs dropped because the service queue is full |
| TimesOutInQueue |
- |
Number of unprocessed RPCs because they times out while waiting in the service queue |
| ThreadsRunning |
- |
Number of threads currently running in all tablet servers or number of threads currently running in all master servers |
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