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Posted to issues@tajo.apache.org by "Byunghwa Yun (JIRA)" <ji...@apache.org> on 2016/01/11 08:08:39 UTC
[jira] [Commented] (TAJO-2044) Add MINIMUM_SPLIT_SIZE to session
variables
[ https://issues.apache.org/jira/browse/TAJO-2044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15091528#comment-15091528 ]
Byunghwa Yun commented on TAJO-2044:
------------------------------------
If MINIMUM_SPLIT_SIZE will be a session variable, the getSplits method of FileTablespace need a QueryContext.
> Add MINIMUM_SPLIT_SIZE to session variables
> -------------------------------------------
>
> Key: TAJO-2044
> URL: https://issues.apache.org/jira/browse/TAJO-2044
> Project: Tajo
> Issue Type: Improvement
> Components: conf and scripts
> Reporter: Jaehwa Jung
> Priority: Minor
> Labels: newbie
> Fix For: 0.12.0, 0.11.1
>
>
> Currently, users can set their output file size with {{MAX_OUTPUT_FILE_SIZE}} which is one of session variables. But it looks a bit iffy because it can't exceed the size of minimum split size. So, users can adjust the output size by setting {{MINIMUM_SPLIT_SIZE}} of configuration file. But they might want to adjust partly queries instead of all queries. For above case, we need to add {{MINIMUM_SPLIT_SIZE}} to session variables.
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