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https://issues.apache.org/jira/browse/TAJO-1271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264433#comment-14264433
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ASF GitHub Bot commented on TAJO-1271:
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GitHub user jinossy opened a pull request:
https://github.com/apache/tajo/pull/329
TAJO-1271: Improve memory usage in HashShuffleFileWriteExec.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jinossy/tajo TAJO-1271
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/329.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #329
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commit 557174ec88956406a9c5d84b8a788e05cdadde1a
Author: jhkim <[email protected]>
Date: 2015-01-04T15:48:33Z
TAJO-1271: Improve memory usage in HashShuffleFileWriteExec.
commit aa1d218040c5233ace675b2b6ed1241af1965df1
Author: jhkim <[email protected]>
Date: 2015-01-04T18:48:29Z
cleanup sync codes
commit 937f1a8f23e86c3dcea002692a5bf3f1d25257f6
Author: jhkim <[email protected]>
Date: 2015-01-05T06:55:49Z
cleanup slow codes
commit e67dc2aa624c546199eae2e568581388ab0686db
Author: jhkim <[email protected]>
Date: 2015-01-05T09:52:40Z
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into
TAJO-1271
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> Improve memory usage in HashShuffleFileWriteExec
> ------------------------------------------------
>
> Key: TAJO-1271
> URL: https://issues.apache.org/jira/browse/TAJO-1271
> Project: Tajo
> Issue Type: Improvement
> Components: data shuffle
> Affects Versions: 0.9.0
> Reporter: Jinho Kim
> Assignee: Jinho Kim
>
> Currently, HashShuffleFileWriteExec keep the cloned tuple list. and It
> written the tulples by count. This affects the jvm memory.
> We should improve it as following :
> * Keep the tuples in off-heap and reuse the row batch
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