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https://issues.apache.org/jira/browse/HBASE-17057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15703718#comment-15703718
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Ashu Pachauri commented on HBASE-17057:
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Picking this up.
> Minor compactions should also drop page cache behind reads
> ----------------------------------------------------------
>
> Key: HBASE-17057
> URL: https://issues.apache.org/jira/browse/HBASE-17057
> Project: HBase
> Issue Type: Improvement
> Components: Compaction
> Reporter: Ashu Pachauri
> Assignee: Ashu Pachauri
>
> Long compactions currently drop cache behind reads so that they don't pollute
> the page cache but short compactions don't do that. The bulk of the data is
> actually read during minor compactions instead of major compactions, and
> thrashes the page cache since it's mostly not needed.
> We should drop page cache behind reads for minor compactions too.
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