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https://issues.apache.org/jira/browse/HIVE-2440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102950#comment-13102950
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jirapos...@reviews.apache.org commented on HIVE-2440:
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trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapOperator.java
<https://reviews.apache.org/r/1813/#comment4250>

    do you need childrenPaths? It's only used for adding paths, but nobody is 
reading it. 


- Ning


On 2011-09-12 19:15:54, Yongqiang He wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/1813/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-09-12 19:15:54)
bq.  
bq.  
bq.  Review request for hive and Ning Zhang.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  make hive mapper initialize faster when having tons of input files
bq.  
bq.  
bq.  This addresses bug hive-2440.
bq.      https://issues.apache.org/jira/browse/hive-2440
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapOperator.java 
1167289 
bq.  
bq.  Diff: https://reviews.apache.org/r/1813/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Yongqiang
bq.  
bq.



> 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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