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https://issues.apache.org/jira/browse/YARN-9965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prabhu Joseph updated YARN-9965:
--------------------------------
Attachment: YARN-9965-001.patch
> Fix NodeManager failing to start when Hdfs Auxillary Jar is set
> ---------------------------------------------------------------
>
> Key: YARN-9965
> URL: https://issues.apache.org/jira/browse/YARN-9965
> Project: Hadoop YARN
> Issue Type: Bug
> Components: auxservices, nodemanager
> Affects Versions: 3.2.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-9965-001.patch
>
>
> Loading an auxiliary jar from a Hdfs location on a node manager works as
> expected on first time. The subsequent restart fails with
> ClassNotFoundException
> {code:java}
> 2019-11-08 03:59:49,256 INFO org.apache.hadoop.util.ApplicationClassLoader:
> classpath: []
> 2019-11-08 03:59:49,256 INFO org.apache.hadoop.util.ApplicationClassLoader:
> system classes: [java., javax.accessibility., javax.activation.,
> javax.activity., javax.annotation., javax.annotation.processing.,
> javax.crypto., javax.imageio., javax.jws., javax.lang.model.,
> -javax.management.j2ee., javax.management., javax.naming., javax.net.,
> javax.print., javax.rmi., javax.script., -javax.security.auth.message.,
> javax.security.auth., javax.security.cert., javax.security.sasl.,
> javax.sound., javax.sql., javax.swing., javax.tools., javax.transaction.,
> -javax.xml.registry., -javax.xml.rpc., javax.xml., org.w3c.dom.,
> org.xml.sax., org.apache.commons.logging., org.apache.log4j.,
> -org.apache.hadoop.hbase., org.apache.hadoop., core-default.xml,
> hdfs-default.xml, mapred-default.xml, yarn-default.xml]
> 2019-11-08 03:59:49,257 INFO org.apache.hadoop.service.AbstractService:
> Service
> org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices failed
> in state INITED
> java.lang.ClassNotFoundException: org.apache.auxtest.AuxServiceFromHDFS
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at
> org.apache.hadoop.util.ApplicationClassLoader.loadClass(ApplicationClassLoader.java:189)
> at
> org.apache.hadoop.util.ApplicationClassLoader.loadClass(ApplicationClassLoader.java:157)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxiliaryServiceWithCustomClassLoader.getInstance(AuxiliaryServiceWithCustomClassLoader.java:169)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices.serviceInit(AuxServices.java:270)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
> at
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceInit(ContainerManagerImpl.java:321)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
> at
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:478)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:936)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:1016)
> {code}
>
> The issue happens when the previous localized auxillary service jar location
> is present when setup of auxillary services. Removing
> /yarn/nm/nmAuxService/org.apache.auxtest.AuxServiceFromHDFS_1573205385991 and
> restart NM works fine.
>
>
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