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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13054) Provide more tracing information for locking/latching events.
Date Thu, 19 Feb 2015 17:49:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327788#comment-14327788
] 

Andrew Purtell commented on HBASE-13054:
----------------------------------------

The HRegion changes don't wrap the scope and span allocations in blocks conditional on Trace.isTracing().
We should have this there too? 
Otherwise patch lgtm.



> Provide more tracing information for locking/latching events.
> -------------------------------------------------------------
>
>                 Key: HBASE-13054
>                 URL: https://issues.apache.org/jira/browse/HBASE-13054
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Rajeshbabu Chintaguntla
>            Assignee: Rajeshbabu Chintaguntla
>             Fix For: 2.0.0, 1.0.1, 1.1.0
>
>         Attachments: HBASE-13054.patch
>
>
> Currently not much tracing information available for locking and latching events like
row level locking during do mini batch mutations, region level locking during flush, close
and so on. It will be better to add the trace information for such events so that it will
be useful for finding time spent on locking and waiting time on locks while analyzing performance
issues in queries using trace information.



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