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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10544) Surface completion state of global administrative actions
Date Thu, 06 Nov 2014 21:50:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201001#comment-14201001

Matteo Bertozzi commented on HBASE-10544:

I'm working on that right now as part of our hackathon I've opened HBASE-12439 with the current
code that I have... but it is still early stage

> Surface completion state of global administrative actions
> ---------------------------------------------------------
>                 Key: HBASE-10544
>                 URL: https://issues.apache.org/jira/browse/HBASE-10544
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Andrew Purtell
>             Fix For: 0.99.2
> When issuing requests for global administrative actions, such as major compaction, users
have to look for indirect evidence the action has completed, and cannot really be sure of
the final state. 
> Hat tip to [~jdcryans] and [~stack].
> We can approach this a couple of ways. We could add a per regionserver metric for percentage
of admin requests complete, maybe also aggregated by the master. This would provide a single
point of reference. However if we also want to insure 100% completion even in the presence
of node failures, or provide separate completion feedback for each request, I think we need
to redo flush and compaction requests as Procedures. 

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