YARN-11744. Tackle flaky test testGetRunningContainersToKill

[pan3793]

Description of PR

I saw the test TestAbstractYarnScheduler.testGetRunningContainersToKill[FAIR] fails occasionally

Error:  org.apache.hadoop.yarn.server.resourcemanager.scheduler.TestAbstractYarnScheduler.testGetRunningContainersToKill[FAIR] -- Time elapsed: 0.016 s <<< FAILURE!
java.lang.AssertionError: expected:<[OPPORTUNISTIC1, OPPORTUNISTIC0, GUARANTEED1, GUARANTEED0, AM1, AM0]> but was:<[OPPORTUNISTIC0, OPPORTUNISTIC1, GUARANTEED1, GUARANTEED0, AM1, AM0]>
	at org.junit.Assert.fail(Assert.java:89)
	at org.junit.Assert.failNotEquals(Assert.java:835)
	at org.junit.Assert.assertEquals(Assert.java:120)
	at org.junit.Assert.assertEquals(Assert.java:146)
	at org.apache.hadoop.yarn.server.resourcemanager.scheduler.TestAbstractYarnScheduler.testGetRunningContainersToKill(TestAbstractYarnScheduler.java:1583)
...

this is likely due to the two System.currentTimeMillis() return same value.

Returns the current time in milliseconds. Note that while the unit of time of the return value is a millisecond, the granularity of the value depends on the underlying operating system and may be larger. For example, many operating systems measure time in units of tens of milliseconds.

How was this patch tested?

Run the modified test locally multi times.

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	12m 33s		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 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	34m 7s		trunk passed
+1 💚	compile	0m 59s		trunk passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	compile	0m 51s		trunk passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	checkstyle	0m 55s		trunk passed
+1 💚	mvnsite	0m 58s		trunk passed
+1 💚	javadoc	0m 57s		trunk passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javadoc	0m 48s		trunk passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	spotbugs	1m 55s		trunk passed
+1 💚	shadedclient	33m 53s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 45s		the patch passed
+1 💚	compile	0m 50s		the patch passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javac	0m 50s		the patch passed
+1 💚	compile	0m 45s		the patch passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	javac	0m 45s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 41s	/results-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 2 new + 14 unchanged - 0 fixed = 16 total (was 14)
+1 💚	mvnsite	0m 46s		the patch passed
+1 💚	javadoc	0m 44s		the patch passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javadoc	0m 40s		the patch passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	spotbugs	1m 51s		the patch passed
+1 💚	shadedclient	33m 33s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	103m 38s		hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 36s		The patch does not generate ASF License warnings.
		232m 35s

Subsystem	Report/Notes
Docker	ClientAPI=1.47 ServerAPI=1.47 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7227/1/artifact/out/Dockerfile
GITHUB PR	#7227
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 0f760e52db0a 5.15.0-125-generic #135-Ubuntu SMP Fri Sep 27 13:53:58 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 37a1be1
Default Java	Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7227/1/testReport/
Max. process+thread count	971 (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-7227/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[slfan1989]

@pan3793 Thanks for the contribution! Merged into trunk.