YARN-11900: NullPointerException in ZKConfigurationStore during RM st…

[susheelgupta7]

…artup when HA enabled and configuration store is ZK

Description of PR

How was this patch 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 13s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+0 🆗	mvndep	9m 38s		Maven dependency ordering for branch
+1 💚	mvninstall	35m 51s		trunk passed
+1 💚	compile	6m 11s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	compile	5m 50s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	checkstyle	1m 48s		trunk passed
+1 💚	mvnsite	2m 30s		trunk passed
+1 💚	javadoc	2m 4s		trunk passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javadoc	1m 59s		trunk passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
-1 ❌	spotbugs	2m 58s	/branch-spotbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api-warnings.html	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api in trunk has 87 extant spotbugs warnings.
-1 ❌	spotbugs	3m 25s	/branch-spotbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-warnings.html	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager in trunk has 1299 extant spotbugs warnings.
+1 💚	shadedclient	33m 58s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 30s		Maven dependency ordering for patch
+1 💚	mvninstall	1m 44s		the patch passed
+1 💚	compile	5m 12s		the patch passed with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04
+1 💚	javac	5m 12s		the patch passed
+1 💚	compile	5m 46s		the patch passed with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
+1 💚	javac	5m 46s		the patch passed
-1 ❌	blanks	0m 0s	/blanks-eol.txt	The patch has 7 line(s) that end in blanks. Use git apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
-0 ⚠️	checkstyle	1m 35s	/results-checkstyle-hadoop-yarn-project_hadoop-yarn.txt	hadoop-yarn-project/hadoop-yarn: The patch generated 2 new + 165 unchanged - 0 fixed = 167 total (was 165)
+1 💚	mvnsite	2m 20s		the patch passed
-1 ❌	javadoc	0m 49s	/results-javadoc-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 generated 4 new + 2313 unchanged - 0 fixed = 2317 total (was 2313)
-1 ❌	javadoc	1m 0s	/results-javadoc-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04.txt	hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkUbuntu-21.0.7+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 generated 2 new + 5634 unchanged - 0 fixed = 5636 total (was 5634)
-1 ❌	javadoc	0m 49s	/results-javadoc-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04 generated 4 new + 2054 unchanged - 0 fixed = 2058 total (was 2054)
-1 ❌	javadoc	1m 0s	/results-javadoc-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04.txt	hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager-jdkUbuntu-17.0.15+6-Ubuntu-0ubuntu120.04 with JDK Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04 generated 2 new + 5436 unchanged - 0 fixed = 5438 total (was 5436)
-1 ❌	spotbugs	3m 37s	/new-spotbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.html	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager generated 1 new + 1299 unchanged - 0 fixed = 1300 total (was 1299)
+1 💚	shadedclient	34m 19s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	1m 14s	/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-api.txt	hadoop-yarn-api in the patch passed.
-1 ❌	unit	116m 25s	/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt	hadoop-yarn-server-resourcemanager in the patch passed.
-1 ❌	asflicense	0m 57s	/results-asflicense.txt	The patch generated 1 ASF License warnings.
		287m 38s

Reason	Tests
SpotBugs	module:hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
	org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.conf.ZKConfigurationStore.retrieve() calls Thread.sleep() with a lock held At ZKConfigurationStore.java:lock held At ZKConfigurationStore.java:[line 227]
Failed junit tests	hadoop.yarn.conf.TestYarnConfigurationFields
	hadoop.yarn.server.resourcemanager.TestRMHA

Subsystem	Report/Notes
Docker	ClientAPI=1.52 ServerAPI=1.52 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8103/1/artifact/out/Dockerfile
GITHUB PR	#8103
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 6460fbbfe916 5.15.0-156-generic #166-Ubuntu SMP Sat Aug 9 00:02:46 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / e6c5d5e
Default Java	Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.7+6-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.15+6-Ubuntu-0ubuntu120.04
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8103/1/testReport/
Max. process+thread count	889 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8103/1/console
versions	git=2.25.1 maven=3.9.11 spotbugs=4.9.7
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.