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https://issues.apache.org/jira/browse/TAJO-1130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14368503#comment-14368503
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ASF GitHub Bot commented on TAJO-1130:
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Github user navis commented on the pull request:
https://github.com/apache/tajo/pull/423#issuecomment-83319791
Yes, it's enabled just for test. I'm not implying this should be enabled by
default. We can fix things that could be caused by this in SNAPSHOT term and
disable it for release version, of course.
For performance numbers, I should admit I've not done any serious tests
with this. But when TAJO-1410 is to be included, I expect we can test this
thoroughly.
> Concurrent execution of independent execution blocks
> -----------------------------------------------------
>
> Key: TAJO-1130
> URL: https://issues.apache.org/jira/browse/TAJO-1130
> Project: Tajo
> Issue Type: Improvement
> Components: query master
> Reporter: Jihoon Son
> Assignee: Navis
>
> Currently, Tajo can execute ExecutionBlocks one by one even though there
> remain enough resources to execute two or more ExecutionBlocks.
> We can improve the query processing performance by executing two or more
> independent ExecutionBlocks if possible.
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