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Posted to issues@kylin.apache.org by "Zhong Yanghong (JIRA)" <ji...@apache.org> on 2018/09/09 05:54:03 UTC
[jira] [Closed] (KYLIN-3463) Improve optimize job by avoiding
creating empty output files on HDFS
[ https://issues.apache.org/jira/browse/KYLIN-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhong Yanghong closed KYLIN-3463.
---------------------------------
Resolved in release 2.4.1 (2018-09-09)
> 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: Minor
> 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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