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https://issues.apache.org/jira/browse/HBASE-74?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-74:
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Priority: Critical (was: Trivial)
Summary: [performance] When a get or scan request spans multiple columns,
execute the reads in parallel (was: [hbase] When a get or scan request spans
multiple columns, execute the reads in parallel)
Upping priority because its performance. If many families, this could help.
We need to talk to our Eitan. He has written a paper on when to parallelize
based on pset frontend experience.
> [performance] When a get or scan request spans multiple columns, execute the
> reads in parallel
> ----------------------------------------------------------------------------------------------
>
> Key: HBASE-74
> URL: https://issues.apache.org/jira/browse/HBASE-74
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Jim Kellerman
> Priority: Critical
> Fix For: 0.20.0
>
>
> When a get or scan request spans multiple columns, execute the reads in
> parallel and use a CountDownLatch to wait for them to complete before
> returning the results.
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