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