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https://issues.apache.org/jira/browse/HBASE-10076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13850710#comment-13850710
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Bryan Keller commented on HBASE-10076:
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In some simple tests, I saw a 4-5x speed improvement, which is similar to what
you are seeing. In production, we saw a lower 3x improvement in our main jobs,
but that is because we are more bound by CPU now than before. I did some quick
profiling and it appears there is room for some optimization in HRegion to
reduce CPU usage, which would further improve performance for more CPU
intensive jobs.
> Backport MapReduce over snapshot files [0.94]
> ---------------------------------------------
>
> Key: HBASE-10076
> URL: https://issues.apache.org/jira/browse/HBASE-10076
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Jesse Yates
> Attachments: hbase-10076-v0.patch
>
>
> MapReduce over Snapshots would be valuable on 0.94.
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