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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3836) Add facility to track currently progressing actions/workflows
Date Tue, 03 May 2011 15:22:03 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028263#comment-13028263
] 

stack commented on HBASE-3836:
------------------------------

bq. ....and hopefully don't have to wait for our next lives to make hbase easier to operate

I was more saying that rather than having to hack in this Visitor after the fact, we'd instead
have made component status and history fundamental to HBase.

> Add facility to track currently progressing actions/workflows
> -------------------------------------------------------------
>
>                 Key: HBASE-3836
>                 URL: https://issues.apache.org/jira/browse/HBASE-3836
>             Project: HBase
>          Issue Type: New Feature
>          Components: master, regionserver
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.92.0
>
>         Attachments: hbase-3836.txt
>
>
> A lot of troubleshooting involves answering the question "well, what is your server doing
right now?" Today, that involves some combination of interpreting jstack output and/or trudging
through logs. Problems with these methods are: (a) users may not have direct ssh access to
regionserver machines in production environments, (b) logs are very verbose, so hard to separate
what's still going on vs stuff that might have completed, and (c) interpreting jstack requires
a pretty good knowledge of the codebase plus diving into source code.
> I'd like to add a singleton (for now) which takes care of tracking any major actions
going on in the region server and master.

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