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https://issues.apache.org/jira/browse/PHOENIX-6052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17645915#comment-17645915
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Rushabh Shah commented on PHOENIX-6052:
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> Otherwise, I think we don't need _syscattime_ and "{_}endTime +
> syscattime{_}". Rather, we can keep _startTime_ at the beginning of
> sendBatch(), and after all three sendMutations() calls are done, we can
> calculate GLOBAL_MUTATION_COMMIT_TIME as "{_}endTime - startTime{_}". WDYT?
I like this idea. The original intention of the Jira was to capture time spent
in validateServerTimestamps in GLOBAL_MUTATION_COMMIT_TIME. Lets not add a new
metric.
I found one weird thing. We call validateAll (which internally calls
validateAndGetServerTimestamp) for mutations which has validateServerTimestamps
flag set to true
[here|https://github.com/apache/phoenix/blob/master/phoenix-core/src/main/java/org/apache/phoenix/execute/MutationState.java#L1191]
For the mutations that doesn't have validateServerTimestamps flag set to true,
we call validateServerTimestamps method
[here|https://github.com/apache/phoenix/blob/master/phoenix-core/src/main/java/org/apache/phoenix/execute/MutationState.java#L1215]
If we are calling validateServerTimestamps for all the mutations, then what is
the need for validateServerTimestamps boolean in MutationState#send method?
[~mnpoonia] If the above statement makes sense then can you please cleanup that
logic in your patch?
Cc [~vjasani]
> GLOBAL_MUTATION_COMMIT_TIME metric doesn't include the time spent in syscat
> rpc's
> ---------------------------------------------------------------------------------
>
> Key: PHOENIX-6052
> URL: https://issues.apache.org/jira/browse/PHOENIX-6052
> Project: Phoenix
> Issue Type: Bug
> Components: core
> Affects Versions: 4.14.3
> Reporter: Rushabh Shah
> Assignee: Aman Poonia
> Priority: Major
>
> Currently we measure the metric GLOBAL_MUTATION_COMMIT_TIME as the time spent
> just in htable.batch rpc for base and index tables.
> https://github.com/apache/phoenix/blob/master/phoenix-core/src/main/java/org/apache/phoenix/execute/MutationState.java#L1029-L1136
> We don't measure the time spent in
> MutationState#validateAndGetServerTimestamp which makes rpc to SYSTEM.CATALOG
> table and which is a part of commit phase.
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