Title |
Metric |
Unit |
Description |
Network connections |
tcp |
- |
Number of TCP server connections |
http |
- |
Number of HTTP server connections |
ZooKeeper event subscriptions |
watches |
- |
Number of ZooKeeper event subscriptions |
Ephemeral nodes held in ZooKeeper |
ephemeralNode |
- |
Number of ephemeral nodes held in ZooKeeper |
Active tasks in BackgroundPool |
backgroundPoolTask |
- |
Number of active tasks in BackgroundProcessingPool |
backgroundSchedulePoolTask |
- |
Number of active tasks in BackgroundSchedulePool |
Threads waiting for locks in Context |
contextLockWait |
- |
Number of threads waiting for locks in Context |
Throttled INSERT queries |
delayedInserts |
- |
Number of throttled INSERT queries |
Requests in fly to data sources of dictionaries of cache type |
dictCacheRequests |
- |
Number of requests in fly to data sources of dictionaries of cache type |
Pending files to process for asynchronous insertion into distributed tables |
distributedSend |
- |
Number of pending files to process for asynchronous insertion into distributed tables |
Threads |
global |
- |
Number of threads in the global thread pool |
globalActive |
- |
Number of active threads in the global thread pool |
local |
- |
Number of threads in the local thread pool |
localActive |
- |
Number of active threads in the local thread pool |
Replicas participating in leader election |
leaderElection |
- |
Number of replicas participating in leader election |
Replicated tables |
leaderReplica |
- |
Number of replicated tables that are leaders |
readonlyReplica |
- |
Number of replicated tables in read-only status |
Total allocated memory size |
memoryTracking |
GB |
Total memory size allocated to queries being executed |
backgroundProcessingPool |
GB |
Total memory size allocated to the background processing pool |
backgroundSchedulePool |
GB |
Total memory size allocated to the background scheduling pool |
memoryTrackingForMerges |
GB |
Total memory size allocated to background merges |
Merges being executed in the background |
merge |
- |
Number of merges being executed in the background |
Opened files |
read |
- |
Number of opened readable files |
write |
- |
Number of opened writable files |
Table changes |
partMutation |
- |
Number of table changes |
Query processing threads |
queryThread |
- |
Number of query processing threads |
Stopped or waiting queries |
queryPreempted |
- |
Number of stopped or waiting queries |
System calls |
read |
- |
Number of read system calls |
write |
- |
Number of write system calls |
Blocks |
fetch |
- |
Number of blocks collected from replicas |
send |
- |
Number of blocks sent to replicas |
check |
- |
Number of blocks for consistency check |
Server change |
revision |
- |
Number of server changes |
Version number |
version |
1 |
Version number |
Threads waiting for read/write locks |
waitingRead |
- |
Number of threads waiting for read/write locks to read from tables |
waitingWrite |
- |
Number of threads waiting for read/write locks to write to tables |
activeRead |
- |
Number of threads holding read locks on tables |
activeWrite |
- |
Number of threads holding write locks on tables |
Rows in buffer tables |
storageBufferRows |
- |
Number of rows in buffer tables |
Bytes in buffer tables |
storageBufferBytes |
MB |
Number of bytes in buffer tables |
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