Shashikant Banerjee created HDDS-1890:
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Summary: Add metrics for data pipeline performance monitoring in
ContainerStateMachine
Key: HDDS-1890
URL: https://issues.apache.org/jira/browse/HDDS-1890
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Datanode
Affects Versions: 0.5.0
Reporter: Shashikant Banerjee
Assignee: Shashikant Banerjee
Fix For: 0.5.0
Following metrics have been identified to be incorporated inside
containerStateMachine in order to measure and monitor the data pipeline
performance in datanode:
|containerDbAvgLoadLatency|Avg time to load a container db|
|avgWriteStateMachineDataLatency|Avg time to write stateMachine Data|
|stateMachineCacheMissRatio|Ratio of stateMachine machine cache misses to total
no of readStateMachine calls|
|avgTransactionalLatency|Avg transactional time for a client request inside the
stateMachine(i.e, time from startTransaction call till applyTransaction of the
request completion)|
|avgContainerDbReadLatency|Avg Rocks Db write latency during putBlock|
|avgContainerDbWriteLatency|Avg Rocks DB read latency during getBlock|
|avgCommitChunkLatency|Avg time taken to rename a chunk file|
|numNotifyNoLeaderCallCount|This indicates how many times stateMachine has been
notified of no leader for extended period of time|
|numNotifySlownessCallCount|Number of times a follower is notified to be slow
to the stateMachine|
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