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From "Kai Sasaki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5706) Fail to launch SLSRunner due to NPE
Date Thu, 22 Dec 2016 00:40:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15768600#comment-15768600
] 

Kai Sasaki commented on YARN-5706:
----------------------------------

[~leftnoteasy] Thanks!

The change was introduced in [this commit|https://github.com/apache/hadoop/commit/f990e9d229d3b83e2f2ce5b1921e2d3e7d318dca].
 It seems to be merged into {{trunk}} and {{release-3.0.0-alpha1-RC0}}.
So I think it isn't necessary to backport to branch-2/branch-2.8.

> Fail to launch SLSRunner due to NPE
> -----------------------------------
>
>                 Key: YARN-5706
>                 URL: https://issues.apache.org/jira/browse/YARN-5706
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler-load-simulator
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Kai Sasaki
>            Assignee: Kai Sasaki
>              Labels: oct16-easy
>         Attachments: YARN-5706.01.patch, YARN-5706.02.patch, YARN-5706.03.patch
>
>
> {code}
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.sls.web.SLSWebApp.<init>(SLSWebApp.java:88)
> 	at org.apache.hadoop.yarn.sls.scheduler.SLSCapacityScheduler.initMetrics(SLSCapacityScheduler.java:459)
> 	at org.apache.hadoop.yarn.sls.scheduler.SLSCapacityScheduler.setConf(SLSCapacityScheduler.java:153)
> 	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:76)
> {code}
> CLASSPATH for html resource is not configured properly.
> {code}
> DEBUG: Injecting share/hadoop/tools/sls/html into CLASSPATH
> DEBUG: Rejected CLASSPATH: share/hadoop/tools/sls/html (does not exist)
> {code}
> This issue can be reproduced when doing according to the documentation instruction.
> http://hadoop.apache.org/docs/current/hadoop-sls/SchedulerLoadSimulator.html
> {code}
> $ cd $HADOOP_ROOT/share/hadoop/tools/sls
> $ bin/slsrun.sh
>   --input-rumen |--input-sls=<TRACE_FILE1,TRACE_FILE2,...>
>   --output-dir=<SLS_SIMULATION_OUTPUT_DIRECTORY> [--nodes=<SLS_NODES_FILE>]
>     [--track-jobs=<JOBID1,JOBID2,...>] [--print-simulation]
> {code}



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