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https://issues.apache.org/jira/browse/HBASE-74?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13502398#comment-13502398
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stack commented on HBASE-74:
----------------------------
To my knowledge, this issue has yet to be tackled.
> [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: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Jim Kellerman
>
> 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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