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From "Riley Patterson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4057) Implement HBase version of "show processlist"
Date Thu, 08 Sep 2011 15:45:09 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100401#comment-13100401
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Riley Patterson commented on HBASE-4057:
----------------------------------------

Also @Andrew, currently, the only user-facing exposure is through jamon. However, the TaskMonitor's
getTasks() method is a very straightforward internal exposure mechanism, and it would be relatively
trivial to expose show processlist to the shell or any other user interface.

My internship ends on Friday (tomorrow), so I don't have time to do this while I'm at Facebook,
but if you think shell exposure is important, I can implement it independently after my internship
ends without too much trouble. However, I would really like to get this core functionality
in before I leave Facebook.

> Implement HBase version of "show processlist"
> ---------------------------------------------
>
>                 Key: HBASE-4057
>                 URL: https://issues.apache.org/jira/browse/HBASE-4057
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, regionserver
>            Reporter: Nicolas Spiegelberg
>            Assignee: Riley Patterson
>         Attachments: HBASE-4057.patch
>
>
> One of the features that our DBAs use for MySQL analysis is "show processlist", which
gives application-level stats about the RPC threads.  Right now, we use jstack but that is
very core-developer-centric.  We need to create a similar tool that DBA/Ops/AppDevs can use.

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