YARN-11449. Fix for Intermittent NPE while getting node labels for queue

[skalva404]

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?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 6s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
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-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	44m 6s	/branch-mvninstall-root.txt	root in trunk failed.
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+1 💚	shadedclient	22m 14s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 52s		the patch passed
+1 💚	compile	0m 57s		the patch passed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1
+1 💚	javac	0m 57s		the patch passed
+1 💚	compile	0m 51s		the patch passed with JDK Private Build-1.8.0_362-8u362-ga-0ubuntu1~20.04.1-b09
+1 💚	javac	0m 51s		the patch passed
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+1 💚	javadoc	0m 39s		the patch passed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1
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+1 💚	spotbugs	1m 59s		the patch passed
+1 💚	shadedclient	22m 1s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	107m 16s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 40s		The patch does not generate ASF License warnings.
		212m 37s

Subsystem	Report/Notes
Docker	ClientAPI=1.42 ServerAPI=1.42 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/1/artifact/out/Dockerfile
GITHUB PR	#5466
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux e6100e24a0d7 4.15.0-200-generic #211-Ubuntu SMP Thu Nov 24 18:16:04 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
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Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/1/testReport/
Max. process+thread count	969 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 54s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
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			_ trunk Compile Tests _
+1 💚	mvninstall	39m 30s		trunk passed
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			_ Patch Compile Tests _
+1 💚	mvninstall	0m 53s		the patch passed
+1 💚	compile	0m 58s		the patch passed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1
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+1 💚	javac	0m 51s		the patch passed
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+1 💚	mvnsite	0m 53s		the patch passed
+1 💚	javadoc	0m 40s		the patch passed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1
+1 💚	javadoc	0m 37s		the patch passed with JDK Private Build-1.8.0_362-8u362-ga-0ubuntu1~20.04.1-b09
+1 💚	spotbugs	1m 56s		the patch passed
+1 💚	shadedclient	21m 8s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	102m 14s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 39s		The patch does not generate ASF License warnings.
		201m 5s

Subsystem	Report/Notes
Docker	ClientAPI=1.42 ServerAPI=1.42 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/2/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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Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/2/testReport/
Max. process+thread count	934 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/2/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 14s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
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			_ trunk Compile Tests _
-1 ❌	mvninstall	25m 47s	/branch-mvninstall-root.txt	root in trunk failed.
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			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 22s	/patch-mvninstall-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt	hadoop-yarn-server-resourcemanager in the patch failed.
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-1 ❌	javac	0m 23s	/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkUbuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1.txt	hadoop-yarn-server-resourcemanager in the patch failed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1.
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-1 ❌	javac	0m 23s	/patch-compile-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkPrivateBuild-1.8.0_362-8u362-ga-0ubuntu1~20.04.1-b09.txt	hadoop-yarn-server-resourcemanager in the patch failed with JDK Private Build-1.8.0_362-8u362-ga-0ubuntu1~20.04.1-b09.
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			_ Other Tests _
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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
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
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Max. process+thread count	92 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5466/3/console
versions	git=2.25.1 maven=3.6.3
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[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 54s		Docker mode activated.
			_ Prechecks _
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+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	39m 26s		trunk passed
+1 💚	compile	1m 5s		trunk passed with JDK Ubuntu-11.0.18+10-post-Ubuntu-0ubuntu120.04.1
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			_ Patch Compile Tests _
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+1 💚	spotbugs	1m 57s		the patch passed
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			_ Other Tests _
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+1 💚	asflicense	0m 38s		The patch does not generate ASF License warnings.
		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
uname	Linux 6d1e3eecc38a 4.15.0-206-generic #217-Ubuntu SMP Fri Feb 3 19:10:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
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Max. process+thread count	930 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
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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[github-actions]

We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you feel like this was a mistake, or you would like to continue working on it, please feel free to re-open it and ask for a committer to remove the stale tag and review again.
Thanks all for your contribution.