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From Aihua Xu <...@cloudera.com>
Subject Re: Review Request 53966: HIVE-15199: INSERT INTO data on S3 is replacing the old rows with the new ones
Date Mon, 21 Nov 2016 22:48:59 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/53966/#review156517
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ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java (line 2789)
<https://reviews.apache.org/r/53966/#comment226704>

    Do you think that will be a performance impact for HDFS if there are many files in the
folder? Looks like recursive is not needed, at least for HDFS since it's to mv to 'destPath
= new Path(destf, name + ("_copy_" + counter) + filetype);'?
    
    The other changes are more like refactoring, correct?


- Aihua Xu


On Nov. 21, 2016, 10:29 p.m., Sergio Pena wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/53966/
> -----------------------------------------------------------
> 
> (Updated Nov. 21, 2016, 10:29 p.m.)
> 
> 
> Review request for hive.
> 
> 
> Bugs: HIVE-15199
>     https://issues.apache.org/jira/browse/HIVE-15199
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> The patch helps execute repeated INSERT INTO statements on S3 tables when the scratch
directory is on S3.
> 
> 
> Diffs
> -----
> 
>   common/src/java/org/apache/hadoop/hive/common/FileUtils.java 1d8c04160c35e48781b20f8e6e14760c19df9ca5

>   itests/hive-blobstore/src/test/queries/clientpositive/insert_into.q 919ff7d9c7cb40062d68b876d6acbc8efb8a8cf1

>   itests/hive-blobstore/src/test/results/clientpositive/insert_into.q.out c25d0c4eec6983b6869e2eba711b39ba91a4c6e0

>   ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java 61b8bd0ac40cffcd6dca0fc874940066bc0aeffe

> 
> Diff: https://reviews.apache.org/r/53966/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Sergio Pena
> 
>


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