Ashu Pachauri created HBASE-17057:
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Summary: 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
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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