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From "Liu Shaohui (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12434) Add a command to compact all the regions in a regionserver
Date Thu, 06 Nov 2014 05:24:34 GMT

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

Liu Shaohui updated HBASE-12434:
--------------------------------
    Summary: Add a command to compact all the regions in a regionserver  (was: Add a command
to compact all the region in a regionserver)

> 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
>
>
> When adding 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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