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ql/src/java/org/apache/hadoop/hive/ql/exec/HiveAuxClasspathBuilder.java
<https://reviews.apache.org/r/18200/#comment64938>

    protected static member for a final class?



ql/src/java/org/apache/hadoop/hive/ql/exec/mr/JarCache.java
<https://reviews.apache.org/r/18200/#comment64973>

    What happens if file exists in cache but is outdated?


- Xuefu Zhang


On Feb. 18, 2014, 3:36 a.m., Brock Noland wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/18200/
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> 
> (Updated Feb. 18, 2014, 3:36 a.m.)
> 
> 
> Review request for hive.
> 
> 
> Bugs: HIVE-860
>     https://issues.apache.org/jira/browse/HIVE-860
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Caches auxiliary jars and remote runtime jars in /user/$user/.hiveJars by 
> their sha1 hash. This results in:
> 
> 1) faster queries
> 2) less distributed cache churn
> 3) a smaller/cleaner hive-exec jar
> 
> 
> Diffs
> -----
> 
>   bin/hive 3bd949f 
>   packaging/src/main/assembly/bin.xml a97ef7d 
>   ql/pom.xml 53d0b9e 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/HiveAuxClasspathBuilder.java 
> PRE-CREATION 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/mr/ExecDriver.java 288da8e 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/mr/JarCache.java PRE-CREATION 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/mr/MapRedTask.java 326654f 
>   shims/aggregator/pom.xml 7aa8c4c 
> 
> Diff: https://reviews.apache.org/r/18200/diff/
> 
> 
> Testing
> -------
> 
> Tested manually on a cluster.
> 
> 
> Thanks,
> 
> Brock Noland
> 
>

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