HBASE-26712 Balancer encounters NPE in rare case

[comnetwork]

No description provided.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 54s	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 5s	branch-2 passed
+1 💚	compile	1m 53s	branch-2 passed
+1 💚	checkstyle	0m 39s	branch-2 passed
+1 💚	spotbugs	1m 16s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 16s	the patch passed
+1 💚	compile	1m 51s	the patch passed
+1 💚	javac	1m 51s	the patch passed
-0 ⚠️	checkstyle	0m 38s	hbase-server: The patch generated 2 new + 86 unchanged - 0 fixed = 88 total (was 86)
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	hadoopcheck	7m 42s	Patch does not cause any errors with Hadoop 3.1.2 3.2.1.
+1 💚	spotbugs	1m 19s	the patch passed
		_ Other Tests _
+1 💚	asflicense	0m 9s	The patch does not generate ASF License warnings.
		26m 28s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#4112
Optional Tests	dupname asflicense javac spotbugs hadoopcheck hbaseanti checkstyle compile
uname	Linux dafe0a150804 5.4.0-1025-aws #25~18.04.1-Ubuntu SMP Fri Sep 11 12:03:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / a2e64ff
Default Java	AdoptOpenJDK-1.8.0_282-b08
checkstyle	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/artifact/yetus-general-check/output/diff-checkstyle-hbase-server.txt
Max. process+thread count	60 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/console
versions	git=2.17.1 maven=3.6.3 spotbugs=4.2.2
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

This message was automatically generated.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 26s	Docker mode activated.
-0 ⚠️	yetus	0m 5s	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 12s	branch-2 passed
+1 💚	compile	0m 44s	branch-2 passed
+1 💚	shadedjars	4m 15s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 28s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 41s	the patch passed
+1 💚	compile	0m 44s	the patch passed
+1 💚	javac	0m 44s	the patch passed
+1 💚	shadedjars	4m 11s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 26s	the patch passed
		_ Other Tests _
+1 💚	unit	336m 38s	hbase-server in the patch passed.
		356m 7s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#4112
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux 175716b8d667 5.4.0-90-generic #101-Ubuntu SMP Fri Oct 15 20:00:55 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / a2e64ff
Default Java	AdoptOpenJDK-11.0.10+9
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/testReport/
Max. process+thread count	1906 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/console
versions	git=2.17.1 maven=3.6.3
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

This message was automatically generated.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 13s	Docker mode activated.
-0 ⚠️	yetus	0m 5s	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	2m 33s	branch-2 passed
+1 💚	compile	0m 37s	branch-2 passed
+1 💚	shadedjars	3m 42s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 25s	branch-2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	2m 18s	the patch passed
+1 💚	compile	0m 36s	the patch passed
+1 💚	javac	0m 36s	the patch passed
+1 💚	shadedjars	3m 40s	patch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 24s	the patch passed
		_ Other Tests _
+1 💚	unit	342m 8s	hbase-server in the patch passed.
		358m 58s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/artifact/yetus-jdk8-hadoop2-check/output/Dockerfile
GITHUB PR	#4112
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux e39a3f4cd776 5.4.0-90-generic #101-Ubuntu SMP Fri Oct 15 20:00:55 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2 / a2e64ff
Default Java	AdoptOpenJDK-1.8.0_282-b08
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/testReport/
Max. process+thread count	1930 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-4112/1/console
versions	git=2.17.1 maven=3.6.3
Powered by	Apache Yetus 0.12.0 https://yetus.apache.org

This message was automatically generated.