8000 YARN-11449. Fix for Intermittent NPE while getting node labels for queue by skalva404 · Pull Request #5466 · apache/hadoop · GitHub
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YARN-11449. Fix for Intermittent NPE while getting node labels for queue #5466

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@skalva404 skalva404 commented Mar 9, 2023

Description of PR

Jira: YARN-11449
Accessing "QueueNodeLabelsSettings#accessibleLabels" can cause NPE without ReadLock (writes to this variable is happening with write lock).
Since QueueNodeLabelsSettings.getAccessibleNodeLabels() can return null and If someone accesses QueueNodeLabelsSettings##accessibleLabels before assigning it from the parent can cause NPE.

The issue was found in 2.10

How was this patch tested?

Unit Tested

For code changes:

  • [✅] Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
  • Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
  • If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
  • If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

@slfan1989 slfan1989 changed the title Fix for Intermittent NPE while getting node labels for queue YARN-11449. Fix for Intermittent NPE while getting node labels for queue Mar 9, 2023
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GITHUB PR #5466
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51m 51s
Subsystem Report/Notes
Docker ClientAPI=1.42 ServerAPI=1.42 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/3/artifact/out/Dockerfile
GITHUB PR #5466
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201m 4s
Reason Tests
Failed junit tests hadoop.yarn.server.resourcemanager.scheduler.capacity.TestLeafQueue
Subsystem Report/Notes
Docker ClientAPI=1.42 ServerAPI=1.42 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/4/artifact/out/Dockerfile
GITHUB PR #5466
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
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Max. process+thread count 930 (vs. ulimit of 5500)
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Console output https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/4/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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