YARN-10421: adding controller for handling diagnostic python script

[Hean-Chhinling]

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	9m 27s		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 💚	test4tests	0m 0s		The patch appears to include 3 new or modified test files.
			_ trunk Compile Tests _
+0 🆗	mvndep	5m 40s		Maven dependency ordering for branch
+1 💚	mvninstall	19m 8s		trunk passed
+1 💚	compile	1m 30s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	1m 19s		trunk passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	checkstyle	0m 40s		trunk passed
+1 💚	mvnsite	0m 59s		trunk passed
+1 💚	javadoc	0m 58s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 54s		trunk passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	1m 45s		trunk passed
+1 💚	shadedclient	21m 20s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 22s		Maven dependency ordering for patch
+1 💚	mvninstall	0m 47s		the patch passed
+1 💚	compile	1m 17s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javac	1m 17s		the patch passed
+1 💚	compile	1m 10s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	javac	1m 10s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 33s	/results-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server.txt	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server: The patch generated 26 new + 6 unchanged - 0 fixed = 32 total (was 6)
+1 💚	mvnsite	0m 46s		the patch passed
+1 💚	javadoc	0m 42s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 44s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
-1 ❌	spotbugs	1m 12s	/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 + 0 unchanged - 0 fixed = 1 total (was 0)
+1 💚	shadedclient	21m 2s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	128m 8s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	unit	0m 20s		hadoop-yarn-server-router in the patch passed.
-1 ❌	asflicense	0m 26s	/results-asflicense.txt	The patch generated 2 ASF License warnings.
		223m 31s

Reason	Tests
SpotBugs	module:hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
	Exception is caught when Exception is not thrown in org.apache.hadoop.yarn.server.resourcemanager.DiagnosticsService.executeCommand(ProcessBuilder) At DiagnosticsService.java:is not thrown in org.apache.hadoop.yarn.server.resourcemanager.DiagnosticsService.executeCommand(ProcessBuilder) At DiagnosticsService.java:[line 204]

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7727/1/artifact/out/Dockerfile
GITHUB PR	#7727
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 39cacaea50d8 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 2f23c24
Default Java	Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7727/1/testReport/
Max. process+thread count	952 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7727/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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