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https://issues.apache.org/jira/browse/KYLIN-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571367#comment-16571367
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ASF subversion and git services commented on KYLIN-3463:
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Commit e22341d1b2023f16aa625d3d2e01dfc68fc0b658 in kylin's branch
refs/heads/2.4.x from Zhong
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=e22341d ]
KYLIN-3463 use LazyOutputFormat to prevent to create zero-sized default output
for optimize jobs
Signed-off-by: shaofengshi <[email protected]>
> Improve optimize job by avoiding creating empty output files on HDFS
> --------------------------------------------------------------------
>
> Key: KYLIN-3463
> URL: https://issues.apache.org/jira/browse/KYLIN-3463
> Project: Kylin
> Issue Type: Improvement
> Reporter: Zhong Yanghong
> Assignee: Zhong Yanghong
> Priority: Major
> Fix For: v2.4.1, v2.5.0
>
> Attachments: APACHE-KYLIN-3463.patch
>
>
> For steps in an optimize job, like {{FilterRecommendCuboidDataJob}} &
> {{UpdateOldCuboidShardJob}}, {{MultipleOutputs}} is used to output data into
> different directories. Therefore, the default output file is empty.
> {{LazyOutputFormat}} should be used to prevent to create zero-sized default
> output.
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