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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12434) Add a command to compact all the regions in a regionserver
Date Tue, 11 Nov 2014 17:41:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack updated HBASE-12434:
       Resolution: Fixed
    Fix Version/s: 0.99.2
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Pushed to branch-1+  Thank you for the patch [~liushaohui] (I tried going back to 0.98 but
APIs on compaction in HBA are different).

> 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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