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https://issues.apache.org/jira/browse/HIVE-2440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102935#comment-13102935
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[email protected] commented on HIVE-2440:
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https://reviews.apache.org/r/1813/
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Review request for hive and Ning Zhang.
Summary
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make hive mapper initialize faster when having tons of input files
This addresses bug hive-2440.
https://issues.apache.org/jira/browse/hive-2440
Diffs
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trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapOperator.java 1167289
Diff: https://reviews.apache.org/r/1813/diff
Testing
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Thanks,
Yongqiang
> make hive mapper initialize faster when having tons of input files
> ------------------------------------------------------------------
>
> Key: HIVE-2440
> URL: https://issues.apache.org/jira/browse/HIVE-2440
> Project: Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HIVE-2440.1.patch, HIVE-2440.2.patch
>
>
> when one hive job has tons of input files, a lot of mappers may fail because
> of slow initialization.
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