> On June 12, 2014, 9:03 p.m., Eugene Koifman wrote:
> > hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/TempletonUtils.java,
> >  line 352
> > <https://reviews.apache.org/r/22329/diff/2/?file=607831#file607831line352>
> >
> >     Is there a reason 
> > org.apache.hadoop.util.ClassUtil.findContainingJar(Class<?> clazz) won't 
> > work?

ClassUtil is declared as a private interface so I don't think we should take a 
dependency on it. Besides this, there was another problem where I wanted to 
match the file name to "hive-shims". This is to avoid accidentally picking up 
"hive-exec.jar" which also contains shim classes and is a 15MB jar (not sure if 
hive-exec including shims is intentional or by accident though). 


- Ivan


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On June 12, 2014, 12:04 a.m., Ivan Mitic wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/22329/
> -----------------------------------------------------------
> 
> (Updated June 12, 2014, 12:04 a.m.)
> 
> 
> Review request for hive.
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Approach in the patch is similar to what Oozie does to handle this situation. 
> Specifically, all child map jobs get tagged with the launcher MR job id. On 
> launcher task restart, launcher queries RM for the list of jobs that have the 
> tag and kills them. After that it moves on to start the same child job again. 
> Again, similarly to what Oozie does, a new templeton.job.launch.time property 
> is introduced that captures the launcher job submit timestamp and later used 
> to reduce the search window when RM is queried. 
> 
> To validate the patch, you will need to add webhcat shim jars to 
> templeton.libjars as now webhcat launcher also has a dependency on hadoop 
> shims. 
> 
> I have noticed that in case of the SqoopDelegator webhcat currently does not 
> set the MR delegation token when optionsFile flag is used. This also creates 
> the problem in this scenario. This looks like something that should be 
> handled via a separate Jira.
> 
> 
> Diffs
> -----
> 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/HiveDelegator.java
>  23b1c4f 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/JarDelegator.java
>  41b1dc5 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/LauncherDelegator.java
>  04a5c6f 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/PigDelegator.java
>  04e061d 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/SqoopDelegator.java
>  adcd917 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/JobSubmissionConstants.java
>  a6355a6 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/LaunchMapper.java
>  556ee62 
>   
> hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/tool/TempletonUtils.java
>  fff4b68 
>   
> hcatalog/webhcat/svr/src/test/java/org/apache/hive/hcatalog/templeton/tool/TestTempletonUtils.java
>  8b46d38 
>   shims/0.20S/src/main/java/org/apache/hadoop/mapred/WebHCatJTShim20S.java 
> d3552c1 
>   shims/0.23/src/main/java/org/apache/hadoop/mapred/WebHCatJTShim23.java 
> 5a728b2 
>   shims/common/src/main/java/org/apache/hadoop/hive/shims/HadoopShims.java 
> 299e918 
> 
> Diff: https://reviews.apache.org/r/22329/diff/
> 
> 
> Testing
> -------
> 
> I have validated that MR, Pig and Hive jobs do get tagged appropriately. I 
> have also validated that previous child jobs do get killed on RM 
> failover/task failure.
> 
> 
> Thanks,
> 
> Ivan Mitic
> 
>

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