HDFS-17402. StartupSafeMode should not exit when resources are from l…

[zhuzilong2013]

Description of PR

Refer to HDFS-17402.
After HDFS-17231, NameNode can exit safemode automatically when resources are from low to available. It used org.apache.hadoop.hdfs.server.namenode.FSNamesystem#leaveSafeMode, this function will change BMSafeModeStatus. However, NameNode entering resource low safe mode doesn't change BMSafeModeStatus in org.apache.hadoop.hdfs.server.namenode.FSNamesystem#enterSafeMode. This is not equal
Now:
a. NN enter StartupSafeMode
b. NN enter ResourceLowSafeMode
c. NN resources from low to available
d. NN safemode off

Expectations：
a. NN enter StartupSafeMode
b. NN enter ResourceLowSafeMode
c. NN resources from low to available
d. NN exit ResourceLowSafeMode but in StartupSafeMode

How was this patch tested?

Add UT

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	0m 21s		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 _
+1 💚	mvninstall	32m 6s		trunk passed
+1 💚	compile	0m 42s		trunk passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+1 💚	compile	0m 40s		trunk passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	checkstyle	0m 39s		trunk passed
+1 💚	mvnsite	0m 46s		trunk passed
+1 💚	javadoc	0m 42s		trunk passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+1 💚	javadoc	1m 12s		trunk passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	spotbugs	1m 44s		trunk passed
+1 💚	shadedclient	20m 32s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 36s		the patch passed
+1 💚	compile	0m 37s		the patch passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+1 💚	javac	0m 37s		the patch passed
+1 💚	compile	0m 35s		the patch passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	javac	0m 35s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 28s		the patch passed
+1 💚	mvnsite	0m 38s		the patch passed
+1 💚	javadoc	0m 30s		the patch passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1
+1 💚	javadoc	1m 2s		the patch passed with JDK Private Build-1.8.0_392-8u392-ga-1~20.04-b08
+1 💚	spotbugs	1m 44s		the patch passed
+1 💚	shadedclient	20m 38s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	198m 13s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 31s		The patch does not generate ASF License warnings.
		286m 27s

Reason	Tests
Failed junit tests	hadoop.hdfs.server.datanode.TestDirectoryScanner
	hadoop.hdfs.tools.TestDFSAdmin

Subsystem	Report/Notes
Docker	ClientAPI=1.44 ServerAPI=1.44 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6618/1/artifact/out/Dockerfile
GITHUB PR	#6618
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 92963e9ffb69 5.15.0-94-generic #104-Ubuntu SMP Tue Jan 9 15:25:40 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 21fb4a3
Default Java	Private Build-1.8.0_392-8u392-ga-1~20.04-b08
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_392-8u392-ga-1~20.04-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6618/1/testReport/
Max. process+thread count	3962 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6618/1/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
			_ Prechecks _
+1 💚	dupname	0m 00s		No case conflicting files found.
+0 🆗	spotbugs	0m 01s		spotbugs executables are not available.
+0 🆗	codespell	0m 01s		codespell was not available.
+0 🆗	detsecrets	0m 01s		detect-secrets was not available.
+1 💚	@author	0m 00s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 00s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	96m 45s		trunk passed
+1 💚	compile	6m 36s		trunk passed
+1 💚	checkstyle	5m 03s		trunk passed
+1 💚	mvnsite	7m 14s		trunk passed
+1 💚	javadoc	6m 33s		trunk passed
+1 💚	shadedclient	155m 32s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	4m 46s		the patch passed
+1 💚	compile	3m 55s		the patch passed
+1 💚	javac	3m 55s		the patch passed
+1 💚	blanks	0m 00s		The patch has no blanks issues.
+1 💚	checkstyle	2m 28s		the patch passed
+1 💚	mvnsite	4m 23s		the patch passed
+1 💚	javadoc	3m 40s		the patch passed
+1 💚	shadedclient	163m 27s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	asflicense	5m 39s		The patch does not generate ASF License warnings.
		444m 09s

Subsystem	Report/Notes
GITHUB PR	#6618
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	MINGW64_NT-10.0-17763 e13068a72d28 3.4.10-87d57229.x86_64 2024-02-14 20:17 UTC x86_64 Msys
Build tool	maven
Personality	/c/hadoop/dev-support/bin/hadoop.sh
git revision	trunk / 21fb4a3
Default Java	Azul Systems, Inc.-1.8.0_332-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6618/1/testReport/
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6618/1/console
versions	git=2.44.0.windows.1
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.