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https://issues.apache.org/jira/browse/YARN-6130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130754#comment-16130754
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Aaron Gresch commented on YARN-6130:
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With security off, no collector token is created:
https://github.com/apache/hadoop/blob/YARN-5355/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/collector/NodeTimelineCollectorManager.java#L205-L206
This code later causes an NPE, not handling a missing token:
https://github.com/apache/hadoop/blob/YARN-5355/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/NodeHeartbeatRequestPBImpl.java#L174
> [ATSv2 Security] Generate a delegation token for AM when app collector is
> created and pass it to AM via NM and RM
> -----------------------------------------------------------------------------------------------------------------
>
> Key: YARN-6130
> URL: https://issues.apache.org/jira/browse/YARN-6130
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Labels: yarn-5355-merge-blocker
> Fix For: YARN-5355, YARN-5355-branch-2
>
> Attachments: YARN-6130-YARN-5355.01.patch,
> YARN-6130-YARN-5355.02.patch, YARN-6130-YARN-5355.03.patch,
> YARN-6130-YARN-5355.04.patch, YARN-6130-YARN-5355.05.patch,
> YARN-6130-YARN-5355.06.patch, YARN-6130-YARN-5355_branch2.01.patch,
> YARN-6130-YARN-5355_branch2.02.patch
>
>
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