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From "Jie Huang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2730) Expose RS work queue contents on web UI
Date Thu, 28 Jun 2012 02:52:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402796#comment-13402796

Jie Huang commented on HBASE-2730:

bq. Why not add this to the debug dump? Why do we need a separate dump/report? Why should
it be disabled by default?

1. Yes. we can put it into debug dump. However the current debug dump is a little bit long,
it is quite convenient and clear to view the queue dump in a new page in our test environment.
That is why we create a separate report here.
2. Good point. Actually, we make it enabled by default in our test environment. We can turn
on this dump by default if it is acceptable. 

Thank you for your time and comment. 
> Expose RS work queue contents on web UI
> ---------------------------------------
>                 Key: HBASE-2730
>                 URL: https://issues.apache.org/jira/browse/HBASE-2730
>             Project: HBase
>          Issue Type: New Feature
>          Components: monitoring, regionserver
>            Reporter: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.96.0
>         Attachments: hbase-2730-0_94_0.patch, queuedump, queuedump_sample.png
> Would be nice to be able to see the contents of the various work queues - eg to know
what regions are pending compaction/split/flush/etc. This is handy for debugging why a region
might be blocked, etc.

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