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https://issues.apache.org/jira/browse/HBASE-12434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206708#comment-14206708
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stack commented on HBASE-12434:
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Oh, I tried the patch and it worked for me.
> Add a command to compact all the regions in a regionserver
> ----------------------------------------------------------
>
> Key: HBASE-12434
> URL: https://issues.apache.org/jira/browse/HBASE-12434
> Project: HBase
> Issue Type: Improvement
> Components: shell
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
> Fix For: 2.0.0, 0.99.2
>
> Attachments: HBASE-12434-v1.diff
>
>
> When adding a new regionserver to the hbase cluster, the data locality of the
> regions in the new regionserver is very low. Most read hdfs requests from
> these regions are remote read, not local read. So, the latency of read
> request to these regions is not stable.
> Usually we can compact all the regions in the new regionserver to improve the
> data locality in offpeak.
> So we add a command: compact_rs in hbase shell.
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