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From "Jonathan Hurley (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMBARI-22628) YARN Shuffle Service Can't Be Found On Client-Only Nodes After New Cluster Install
Date Tue, 12 Dec 2017 13:31:00 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-22628?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Hurley resolved AMBARI-22628.
--------------------------------------
    Resolution: Fixed

> YARN Shuffle Service Can't Be Found On Client-Only Nodes After New Cluster Install
> ----------------------------------------------------------------------------------
>
>                 Key: AMBARI-22628
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22628
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 2.6.1
>            Reporter: Kishor Ramakrishnan
>            Assignee: Jonathan Hurley
>            Priority: Blocker
>             Fix For: 2.6.1
>
>         Attachments: AMBARI-22628.patch
>
>
> Installing a new cluster can create values in yarn-site.xml which have {{None}} specified
in the classpath for Spark
> {code:java}
> <property>
>       <name>yarn.nodemanager.aux-services.spark2_shuffle.classpath</name>
>       <value>/usr/hdp/None/spark2/aux/*</value>
>     </property>
>  <property>
>       <name>yarn.nodemanager.aux-services.spark_shuffle.classpath</name>
>       <value>/usr/hdp/None/spark/aux/*</value>
>     </property>
> <property>
>       <name>yarn.timeline-service.entity-group-fs-store.group-id-plugin-classpath</name>
>       <value>/usr/hdp/None/spark/hdpLib/*</value>
>     </property>
> {code}
> The cause for this is that YARN Clients on hosts without daemons never get a restart
command after the initial {{yarn-site.xml}}, and can never fill in the correct values. This
causes problems when jobs are run on these nodes:
> {code}
> 2017-12-04 10:16:41,789 INFO  service.AbstractService (AbstractService.java:noteFailure(272))
- Service org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices failed in
state INITED; cause: java.lang.ClassNotFoundException: org.apache.spark.network.yarn.YarnShuffleService
> java.lang.ClassNotFoundException: org.apache.spark.network.yarn.YarnShuffleService
> {code}



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