HBASE-29652 Chaos testing in ZK mode does not work on hosts with ZNode persistence issue

[ningjize]

Full description of bug can be found https://issues.apache.org/jira/browse/HBASE-29652

Add a Watcher to prevent the ephemeral ZNode of the agent from being accidentally deleted or timing out.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 30s		Docker mode activated.
-0 ⚠️	yetus	0m 2s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ master Compile Tests _
+1 💚	mvninstall	3m 52s		master passed
+1 💚	compile	0m 22s		master passed
+1 💚	javadoc	0m 15s		master passed
+1 💚	shadedjars	6m 22s		branch has no errors when building our shaded downstream artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	3m 12s		the patch passed
+1 💚	compile	0m 21s		the patch passed
+1 💚	javac	0m 21s		the patch passed
+1 💚	javadoc	0m 12s		the patch passed
+1 💚	shadedjars	6m 18s		patch has no errors when building our shaded downstream artifacts.
			_ Other Tests _
+1 💚	unit	0m 40s		hbase-it in the patch passed.
		23m 4s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7383/1/artifact/yetus-jdk17-hadoop3-check/output/Dockerfile
GITHUB PR	#7383
Optional Tests	javac javadoc unit compile shadedjars
uname	Linux a08036fbf54f 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 586ac41
Default Java	Eclipse Adoptium-17.0.11+9
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7383/1/testReport/
Max. process+thread count	612 (vs. ulimit of 30000)
modules	C: hbase-it U: hbase-it
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7383/1/console
versions	git=2.34.1 maven=3.9.8
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 44s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	hbaseanti	0m 0s		Patch does not have any anti-patterns.
			_ master Compile Tests _
+1 💚	mvninstall	4m 44s		master passed
+1 💚	compile	0m 55s		master passed
+1 💚	checkstyle	0m 24s		master passed
+1 💚	spotbugs	0m 49s		master passed
+1 💚	spotless	1m 19s		branch has no errors when running spotless:check.
			_ Patch Compile Tests _
+1 💚	mvninstall	4m 28s		the patch passed
+1 💚	compile	0m 47s		the patch passed
+1 💚	javac	0m 47s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 23s		the patch passed
+1 💚	spotbugs	0m 51s		the patch passed
+1 💚	hadoopcheck	16m 36s		Patch does not cause any errors with Hadoop 3.3.6 3.4.1.
+1 💚	spotless	1m 14s		patch has no errors when running spotless:check.
			_ Other Tests _
+1 💚	asflicense	0m 20s		The patch does not generate ASF License warnings.
		43m 30s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7383/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#7383
Optional Tests	dupname asflicense javac spotbugs checkstyle codespell detsecrets compile hadoopcheck hbaseanti spotless
uname	Linux 5af78da2a0ea 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 586ac41
Default Java	Eclipse Adoptium-17.0.11+9
Max. process+thread count	83 (vs. ulimit of 30000)
modules	C: hbase-it U: hbase-it
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7383/1/console
versions	git=2.34.1 maven=3.9.8 spotbugs=4.7.3
Powered by	Apache Yetus 0.15.0 https://yetus.apache.org

This message was automatically generated.

[mnpoonia]

Good change. I recently faced same issue in one of my test environment.

[droudnitsky]

Looks good , thank you for contributing the improvement