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From "Andrew Purtell (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4668) List HDFS enhancements to speed up backups for HBase
Date Tue, 25 Oct 2011 14:28:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135090#comment-13135090
] 

Andrew Purtell commented on HBASE-4668:
---------------------------------------

Please consider both 0.20.x and 0.23.x variants.
                
> List HDFS enhancements to speed up backups for HBase
> ----------------------------------------------------
>
>                 Key: HBASE-4668
>                 URL: https://issues.apache.org/jira/browse/HBASE-4668
>             Project: HBase
>          Issue Type: Sub-task
>          Components: documentation, regionserver
>            Reporter: Karthik Ranganathan
>
> There are a host of improvements that help:
> - HDFS fast copy
> - Various enhancements to fast copy to speed up things
> - File level hard links - which does ext3 hardlinks instead of copying blocks thereby
saving a lot of iops
> Need to list out the HDFS jira's and have patches on them.

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