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https://issues.apache.org/jira/browse/YARN-8350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495648#comment-16495648
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Hudson commented on YARN-8350:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14319 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/14319/])
YARN-8350. NPE in service AM related to placement policy. Contributed by
(billie: rev 778a4a24be176382a5704f709c00bdfcfe6ddc8c)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/utils/ServiceApiUtil.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/TestServiceApiUtil.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/component/Component.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/exceptions/RestApiErrorMessages.java
> NPE in service AM related to placement policy
> ---------------------------------------------
>
> Key: YARN-8350
> URL: https://issues.apache.org/jira/browse/YARN-8350
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn-native-services
> Reporter: Billie Rinaldi
> Assignee: Gour Saha
> Priority: Critical
> Fix For: 3.2.0, 3.1.1
>
> Attachments: YARN-8350.01.patch, YARN-8350.02.patch
>
>
> It seems like this NPE is happening in a service with more than one component
> when one component has a placement policy and the other does not. It causes
> the AM to crash.
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.service.component.Component.requestContainers(Component.java:644)
> at
> org.apache.hadoop.yarn.service.component.Component$FlexComponentTransition.transition(Component.java:310)
> at
> org.apache.hadoop.yarn.service.component.Component$FlexComponentTransition.transition(Component.java:293)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory.access$500(StateMachineFactory.java:46)
> at
> org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:487)
> at
> org.apache.hadoop.yarn.service.component.Component.handle(Component.java:919)
> at
> org.apache.hadoop.yarn.service.ServiceScheduler.serviceStart(ServiceScheduler.java:344)
> at
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
> at
> org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:121)
> at
> org.apache.hadoop.yarn.service.ServiceMaster.lambda$serviceStart$0(ServiceMaster.java:253)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1682)
> at
> org.apache.hadoop.yarn.service.ServiceMaster.serviceStart(ServiceMaster.java:251)
> at
> org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
> at
> org.apache.hadoop.yarn.service.ServiceMaster.main(ServiceMaster.java:317)
> {noformat}
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