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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3767) Yarn Scheduler Load Simulator does not work
Date Thu, 16 Mar 2017 18:20:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-3767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15928579#comment-15928579
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Yufei Gu commented on YARN-3767:
--------------------------------

SLS is broken in some ways. We are trying to fix it in Umbrella JIRA YARN-5065.

> Yarn Scheduler Load Simulator does not work
> -------------------------------------------
>
>                 Key: YARN-3767
>                 URL: https://issues.apache.org/jira/browse/YARN-3767
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.0
>         Environment: OS X 10.10.  JDK 1.7
>            Reporter: David Kjerrumgaard
>
> Running the SLS, as per the instructions on the web results in a NullPointerException
being thrown.
> Steps followed to create error:
> 1) Download Apache Hadoop 2.7.0 tarball from Apache site
> 2) Untar 2.7.0 tarball into /opt directory
> 3) Execute the following command: 
> /opt/hadoop-2.7.0/share/hadoop/tools/sls//bin/slsrun.sh --input-rumen=/opt/hadoop-2.7.0/share/hadoop/tools/sls/sample-data/2jobs2min-rumen-jh.json
--output-dir=/tmp
> Results in the following error:
> 15/06/04 10:25:41 INFO rmnode.RMNodeImpl: a2118.smile.com:2 Node Transitioned from NEW
to RUNNING
> 15/06/04 10:25:41 INFO capacity.CapacityScheduler: Added node a2118.smile.com:2 clusterResource:
<memory:30720, vCores:30>
> 15/06/04 10:25:41 INFO util.RackResolver: Resolved a2115.smile.com to /default-rack
> 15/06/04 10:25:41 INFO resourcemanager.ResourceTrackerService: NodeManager from node
a2115.smile.com(cmPort: 3 httpPort: 80) registered with capability: <memory:10240, vCores:10>,
assigned nodeId a2115.smile.com:3
> 15/06/04 10:25:41 INFO rmnode.RMNodeImpl: a2115.smile.com:3 Node Transitioned from NEW
to RUNNING
> 15/06/04 10:25:41 INFO capacity.CapacityScheduler: Added node a2115.smile.com:3 clusterResource:
<memory:40960, vCores:40>
> Exception in thread "main" java.lang.RuntimeException: java.lang.NullPointerException
> 	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:134)
> 	at org.apache.hadoop.yarn.sls.SLSRunner.startAMFromRumenTraces(SLSRunner.java:398)
> 	at org.apache.hadoop.yarn.sls.SLSRunner.startAM(SLSRunner.java:250)
> 	at org.apache.hadoop.yarn.sls.SLSRunner.start(SLSRunner.java:145)
> 	at org.apache.hadoop.yarn.sls.SLSRunner.main(SLSRunner.java:528)
> Caused by: java.lang.NullPointerException
> 	at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)
> 	at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:988)
> 	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:126)
> 	... 4 more



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