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https://issues.apache.org/jira/browse/HBASE-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13099015#comment-13099015
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Daniel Einspanjer commented on HBASE-1621:
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@J-D
I noticed a potential small problem with the script while reading through it.
At the beginning, it calls HBaseAdmin.balanceSwitch(false), but after the
initial scan, there are two Trollop:die statements that would prevent the
balancer from being turned back on.
I think that you need to test the two break conditions in an if block, and then
turn the balancer back on before you call die.
> merge tool should work on online cluster, but disabled table
> ------------------------------------------------------------
>
> Key: HBASE-1621
> URL: https://issues.apache.org/jira/browse/HBASE-1621
> Project: HBase
> Issue Type: Bug
> Reporter: ryan rawson
> Assignee: stack
> Priority: Blocker
> Fix For: 0.92.0
>
> Attachments: 1621-trunk.txt, HBASE-1621-v2.patch, HBASE-1621.patch,
> hbase-onlinemerge.patch, online_merge.rb
>
>
> taking down the entire cluster to merge 2 regions is a pain, i dont see why
> the table or regions specifically couldnt be taken offline, then merged then
> brought back up.
> this might need a new API to the regionservers so they can take direction
> from not just the master.
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