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Sqoop, mail # dev - Review Request 14085: Review request for SQOOP-1192 Add option "--skip-dist-cache" to allow Sqoop not copying jars in %SQOOP_HOME%\lib folder when launched by Oozie and use Oozie share lib


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Re: Review Request 14085: Review request for SQOOP-1192 Add option "--skip-dist-cache" to allow Sqoop not copying jars in %SQOOP_HOME%\lib folder when launched by Oozie and use Oozie share lib
Venkat Ranganathan 2013-09-11, 18:01

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https://reviews.apache.org/r/14085/#review26039
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Thanks for working on this Shuaishuai Nie.  Can you add some unit tests (this option being recognized properly for example).   Also, documentation can be updated to describe this feature

- Venkat Ranganathan
On Sept. 11, 2013, 5:12 p.m., Shuaishuai Nie wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/14085/
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> (Updated Sept. 11, 2013, 5:12 p.m.)
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> Review request for Sqoop.
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> Bugs: SQOOP-1192
>     https://issues.apache.org/jira/browse/SQOOP-1192
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> Repository: sqoop-trunk
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> Description
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> Now Sqoop will copy jar files in %SQOOP_HOME%\lib folder to the job cache every time a Sqoop job is launched. When Oozie launch a Sqoop job, this behavior can be optimized by add these jars in Oozie Sqoop sharelib. In this case, the jar files in share lib only needed be localized to each worker node once and reuse by all Sqoop job launched by Oozie. This can reduce massive disk I/O on worker node when using Sqoop by Oozie. To enable this, Sqoop need to have an option which enable the job to skip adding lib jars to the job cache. For now, this option should only be used by Oozie started Sqoop job. The patch attached introduce "--skip-dist-cache" option to enable this feature.
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> Diffs
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>   src/java/org/apache/sqoop/SqoopOptions.java 01805f9
>   src/java/org/apache/sqoop/mapreduce/JobBase.java 322df1c
>   src/java/org/apache/sqoop/mapreduce/hcat/SqoopHCatUtilities.java b05f587
>   src/java/org/apache/sqoop/tool/BaseSqoopTool.java ebb1857
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> Diff: https://reviews.apache.org/r/14085/diff/
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> Testing
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> Tested the new option with Oozie-Sqoop workflow to ensure it doesn't break Sqoop library dependencies when launched by Oozie
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> Thanks,
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> Shuaishuai Nie
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