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https://issues.apache.org/jira/browse/HBASE-1583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12732103#action_12732103
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stack commented on HBASE-1583:
------------------------------

This patch adds to the previous.  It adds no compaction on open unless region 
has references.

> Start/Stop of large cluster untenable
> -------------------------------------
>
>                 Key: HBASE-1583
>                 URL: https://issues.apache.org/jira/browse/HBASE-1583
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.20.0
>
>         Attachments: 1583-nocompactonclose.patch, 
> 1583-v2-nocompactonopenclose.patch
>
>
> Starting and stopping a loaded large cluster is way too flakey and takes too 
> long.  This is 0.19.x but same issues apply to TRUNK I'd say.
> At pset with our > 100 nodes carrying 6k regions:
> + shutdown takes way too long.... maybe ten minutes or so.  We compact 
> regions inline with shutdown.  We should just go down.  It doesn't seem like 
> all regionservers go down everytime either.
> + startup is a mess with our assigning out regions an rebalancing at same 
> time.  By time that the compactions on open run, it can be near an hour 
> before whole thing settles down and becomes useable

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