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https://issues.apache.org/jira/browse/HBASE-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl resolved HBASE-4657.
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Resolution: Fixed
Fix Version/s: 0.96.0
Hadoop Flags: Reviewed
Committed to 0.94 and trunk. Thanks for the reviews.
> Improve the efficiency of our MR jobs with a few configurations
> ---------------------------------------------------------------
>
> Key: HBASE-4657
> URL: https://issues.apache.org/jira/browse/HBASE-4657
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.4
> Reporter: Jean-Daniel Cryans
> Assignee: Lars Hofhansl
> Fix For: 0.94.0, 0.96.0
>
> Attachments: 4657.txt
>
>
> This is a low hanging fruit, some of our MR jobs like RowCounter and
> CopyTable don't even setCacheBlocks on the scan object which out of the box
> completely screws up a running system. Another thing would be to disable
> speculative execution.
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