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