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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13054) Provide more tracing information for locking/latching events.
Date Sat, 21 Feb 2015 09:19:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14330097#comment-14330097
] 

Hudson commented on HBASE-13054:
--------------------------------

FAILURE: Integrated in HBase-TRUNK #6157 (See [https://builds.apache.org/job/HBase-TRUNK/6157/])
HBASE-13054 Provide more tracing information for locking/latching events.(Rajeshbabu) (rajeshbabu:
rev 7792dee0c36de9b3108ebf60f6394f2d7e9a1b9f)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java


> 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, 0.98.11
>
>         Attachments: HBASE-13054.patch, HBASE-13054_0.98.patch, HBASE-13054_v2.patch,
HBASE-13054_v3.patch, HBASE-13056_branch-1.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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