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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2019/08/28 15:55:27 UTC

[GitHub] [hadoop] avijayanhwx edited a comment on issue #1363: HDDS-1783 : Latency metric for applyTransaction in ContainerStateMach…

avijayanhwx edited a comment on issue #1363: HDDS-1783 : Latency metric for applyTransaction in ContainerStateMach…
URL: https://github.com/apache/hadoop/pull/1363#issuecomment-525808488
 
 
   > Thanks @avijayanhwx for working on this. The changes look good. In applyTransaction, we execute different cmds which will vary with latency. For example, for a write chunk commit, its a rename operation but for putBlock , it is Rocks DB operation and for close container, its again a disk sync operation of container state. Depending upon the operation the latency will vary as well. Can we have per cmd latency metric?
   
   @bshashikant Isn't the per operation latency covered in org.apache.hadoop.ozone.container.common.transport.server.ratis.CSMMetrics#opsLatency? This metric was only intended to cover the whole latency including thread scheduling. 

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