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From "Xuefu Zhang" <xzh...@cloudera.com>
Subject Re: Review Request 33251: HIVE-10302 Cache small tables in memory [Spark Branch]
Date Fri, 24 Apr 2015 01:51:13 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/33251/#review81444
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Ship it!


Ship It!

- Xuefu Zhang


On April 23, 2015, 11:22 p.m., Jimmy Xiang wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/33251/
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> 
> (Updated April 23, 2015, 11:22 p.m.)
> 
> 
> Review request for hive, Chao Sun, Szehon Ho, and Xuefu Zhang.
> 
> 
> Bugs: HIVE-10302
>     https://issues.apache.org/jira/browse/HIVE-10302
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Cached the small table containter so that mapjoin tasks can use it if the task is executed
on the same Spark executor.
> The cache is released right before the next job after the mapjoin job is done.
> 
> 
> Diffs
> -----
> 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/spark/HashTableLoader.java fe108c4 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/spark/HivePairFlatMapFunction.java 2f137f9

>   ql/src/java/org/apache/hadoop/hive/ql/exec/spark/SmallTableCache.java PRE-CREATION

>   ql/src/java/org/apache/hadoop/hive/ql/exec/spark/SparkUtilities.java 72ab913 
> 
> Diff: https://reviews.apache.org/r/33251/diff/
> 
> 
> Testing
> -------
> 
> Ran several queries in live cluster. ptest pending.
> 
> 
> Thanks,
> 
> Jimmy Xiang
> 
>


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