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https://issues.apache.org/jira/browse/HIVE-2218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13049426#comment-13049426
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jirapos...@reviews.apache.org commented on HIVE-2218:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/898/
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Review request for hive.
Summary
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speedup addInputPaths
This addresses bug HIVE-2218.
https://issues.apache.org/jira/browse/HIVE-2218
Diffs
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trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExecDriver.java 1135335
trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java 1135335
trunk/ql/src/java/org/apache/hadoop/hive/ql/io/CombineHiveInputFormat.java
1135335
trunk/ql/src/java/org/apache/hadoop/hive/ql/plan/MapredWork.java 1135335
Diff: https://reviews.apache.org/r/898/diff
Testing
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yes.
Thanks,
Yongqiang
> speedup addInputPaths
> ---------------------
>
> Key: HIVE-2218
> URL: https://issues.apache.org/jira/browse/HIVE-2218
> Project: Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HIVE-2218.1.patch
>
>
> Speedup the addInputPaths for combined symlink inputformat, and added some
> other micro optimizations which also work for normal cases.
> This can help reducing the start time of one query from 5 hours to less than
> 20 mins.
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