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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4292) Add a debugging dump servlet to the master and regionserver
Date Tue, 30 Aug 2011 21:07:10 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HBASE-4292:
-------------------------------

    Release Note: The master and region server web UIs expose a new servlet at '/dump' which
contains a debug dump containing useful information about their state.
    Hadoop Flags: [Reviewed]
         Summary: Add a debugging dump servlet to the master and regionserver  (was: Add a
debugging dump servlet to the master)

> Add a debugging dump servlet to the master and regionserver
> -----------------------------------------------------------
>
>                 Key: HBASE-4292
>                 URL: https://issues.apache.org/jira/browse/HBASE-4292
>             Project: HBase
>          Issue Type: New Feature
>          Components: master
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.92.0
>
>         Attachments: 0007-HBASE-4292.-MasterDumpServlet-v2.patch, hbase-4292-v3.txt
>
>
> For debugging clusters, it would be nice to have a single text-only page that can be
"curled" and used for debugging. This servlet will include the following info:
> - build version
> - monitored task status
> - server list
> - recently aborted region servers (see HBASE-4275)
> - regions in transition
> - executor pool status (see HBASE-4281)
> - stack trace of all threads
> - configuration
> - last N KB of the server's logs

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