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From "Jonathan Hsieh (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5628) Improve performance of uberhbck
Date Wed, 04 Apr 2012 13:27:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246248#comment-13246248
] 

Jonathan Hsieh commented on HBASE-5628:
---------------------------------------

- parallelize the reads of .regioninfo files in the "diagnostic" section of repairs.
                
> Improve performance of uberhbck
> -------------------------------
>
>                 Key: HBASE-5628
>                 URL: https://issues.apache.org/jira/browse/HBASE-5628
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbck
>    Affects Versions: 0.90.7, 0.92.2, 0.94.0, 0.96.0
>            Reporter: Jonathan Hsieh
>
> During reviews of HBASE-5128 there are several opportunities investigate for improving
the performance of the tool.
> - Change regionInfoMap and tablesInfo from TreeMap to HashMap.
> - Change some full region set reloads to be incremental to require fewer passes.
> - Cache meta for subsequent calls of closeRegionSileneglyAndWait

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