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https://issues.apache.org/jira/browse/HBASE-11516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064418#comment-14064418
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Andrew Purtell commented on HBASE-11516:
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Thinking about this more, we could easily do orders of magnitude more
coprocessor upcalls than HFile reads and writes and so using single aromic
variables for counting will have a big perf impact. Should consider something
like Click's high scale counters. Boundary has a maintained bug fixed version
possibly worth moving to.
If you'd like to try this while keeping all of the above in mind, great. If
not, that's fine also, please reassign to me and I'll take it up.
> Track time spent in executing coprocessors in each region.
> ----------------------------------------------------------
>
> Key: HBASE-11516
> URL: https://issues.apache.org/jira/browse/HBASE-11516
> Project: HBase
> Issue Type: Improvement
> Components: Coprocessors
> Affects Versions: 0.98.4
> Reporter: Srikanth Srungarapu
> Assignee: Srikanth Srungarapu
> Priority: Minor
> Fix For: 0.98.5
>
> Attachments: HBASE-11516.patch, HBASE-11516_v2.patch
>
>
> Currently, the time spent in executing coprocessors is not yet being tracked.
> This feature can be handy for debugging coprocessors in case of any trouble.
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