HBASE-25626 Possible Resource Leak in HeterogeneousRegionCountCostFunction (branch-2)

[Nargeshdb]

This PR addresses this comment.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 8s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	hbaseanti	0m 0s	Patch does not have any anti-patterns.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
		_ branch-2 Compile Tests _
+1 💚	mvninstall	3m 45s	branch-2 passed
+1 💚	compile	3m 9s	branch-2 passed
+1 💚	checkstyle	1m 9s	branch-2 passed
+1 💚	spotbugs	1m 59s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	3m 19s	the patch passed
+1 💚	compile	3m 3s	the patch passed
+1 💚	javac	3m 3s	the patch passed
+1 💚	checkstyle	1m 6s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	hadoopcheck	11m 59s	Patch does not cause any errors with Hadoop 3.1.2 3.2.1.
+1 💚	spotbugs	2m 8s	the patch passed
		_ Other Tests _
+1 💚	asflicense	0m 15s	The patch does not generate ASF License warnings.
		40m 50s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#3017
Optional Tests	dupname asflicense javac spotbugs hadoopcheck hbaseanti checkstyle compile
uname	Linux 0505552b55fb 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / e57c73a
Default Java	AdoptOpenJDK-1.8.0_282-b08
Max. process+thread count	96 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/console
versions	git=2.17.1 maven=3.6.3 spotbugs=3.1.12
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 53s	Docker mode activated.
-0 ⚠️	yetus	0m 7s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ branch-2 Compile Tests _
+1 💚	mvninstall	5m 45s	branch-2 passed
+1 💚	compile	1m 26s	branch-2 passed
+1 💚	shadedjars	9m 47s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 52s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	5m 48s	the patch passed
+1 💚	compile	1m 34s	the patch passed
+1 💚	javac	1m 34s	the patch passed
+1 💚	shadedjars	9m 29s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 50s	the patch passed
		_ Other Tests _
+1 💚	unit	136m 21s	hbase-server in the patch passed.
		175m 18s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#3017
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux 722443edd194 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / e57c73a
Default Java	AdoptOpenJDK-11.0.10+9
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/testReport/
Max. process+thread count	3921 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/console
versions	git=2.17.1 maven=3.6.3
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 16s	Docker mode activated.
-0 ⚠️	yetus	0m 8s	Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --whitespace-eol-ignore-list --whitespace-tabs-ignore-list --quick-hadoopcheck
		_ Prechecks _
		_ branch-2 Compile Tests _
+1 💚	mvninstall	3m 58s	branch-2 passed
+1 💚	compile	1m 0s	branch-2 passed
+1 💚	shadedjars	6m 35s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 37s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	3m 56s	the patch passed
+1 💚	compile	1m 5s	the patch passed
+1 💚	javac	1m 5s	the patch passed
+1 💚	shadedjars	6m 39s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 37s	the patch passed
		_ Other Tests _
+1 💚	unit	263m 6s	hbase-server in the patch passed.
		291m 1s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/artifact/yetus-jdk8-hadoop2-check/output/Dockerfile
GITHUB PR	#3017
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux 7fe5531cabdc 4.15.0-136-generic #140-Ubuntu SMP Thu Jan 28 05:20:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / e57c73a
Default Java	AdoptOpenJDK-1.8.0_282-b08
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/testReport/
Max. process+thread count	2226 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-3017/1/console
versions	git=2.17.1 maven=3.6.3
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

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