check regionIndex

[casuallc]

if regionIndex not in regions, there will be ArrayIndexOutOfBoundsException.
such as
2019-07-25 15:19:59,828 ERROR [master/nna:16000.Chore.1] hbase.ScheduledChore: Caught error
java.lang.ArrayIndexOutOfBoundsException: 3171
at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.removeRegion(BaseLoadBalancer.java:873)
at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.doAction(BaseLoadBalancer.java:716)
at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:407)
at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:318)
at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1650)
at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1567)
at org.apache.hadoop.hbase.master.balancer.BalancerChore.chore(BalancerChore.java:49)
at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:186)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at org.apache.hadoop.hbase.JitterScheduledThreadPoolExecutorImpl$JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecutorImpl.java:111)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

[Reidddddd]

Please file a JIRA first.

[casuallc]

Please file a JIRA first.

I did not do this before, what should I do?

[Reidddddd]

Please refer to Getting Involved

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	45	Docker mode activated.
		_ Prechecks _
+1	dupname	0	No case conflicting files found.
+1	hbaseanti	0	Patch does not have any anti-patterns.
+1	@author	0	The patch does not contain any @author tags.
-0	test4tests	0	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ branch-2.2 Compile Tests _
+1	mvninstall	275	branch-2.2 passed
+1	compile	50	branch-2.2 passed
+1	checkstyle	71	branch-2.2 passed
+1	shadedjars	234	branch has no errors when building our shaded downstream artifacts.
+1	javadoc	33	branch-2.2 passed
0	spotbugs	156	Used deprecated FindBugs config; considering switching to SpotBugs.
+1	findbugs	154	branch-2.2 passed
		_ Patch Compile Tests _
+1	mvninstall	277	the patch passed
+1	compile	49	the patch passed
+1	javac	49	the patch passed
+1	checkstyle	70	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedjars	229	patch has no errors when building our shaded downstream artifacts.
+1	hadoopcheck	857	Patch does not cause any errors with Hadoop 2.8.5 2.9.2 or 3.1.2.
+1	javadoc	32	the patch passed
+1	findbugs	172	the patch passed
		_ Other Tests _
-1	unit	8705	hbase-server in the patch failed.
+1	asflicense	21	The patch does not generate ASF License warnings.
		11635

Reason	Tests
Failed junit tests	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaMidCluster
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaHighReplication
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerBalanceCluster
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplica
	hadoop.hbase.master.procedure.TestProcedurePriority
	hadoop.hbase.TestRegionRebalancing
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerMidCluster
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaWithRacks
	hadoop.hbase.master.balancer.TestBaseLoadBalancer
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerSmallCluster
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaReplicationGreaterThanNumNodes
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerLargeCluster
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaSameHosts
	hadoop.hbase.master.balancer.TestStochasticLoadBalancer
	hadoop.hbase.master.balancer.TestStochasticLoadBalancerRegionReplicaLargeCluster

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-410/1/artifact/out/Dockerfile
GITHUB PR	#410
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux ae5cf5096655 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-slave/workspace/HBase-PreCommit-GitHub-PR_PR-410/out/precommit/personality/provided.sh
git revision	branch-2.2 / ac03756
Default Java	1.8.0_181
unit	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-410/1/artifact/out/patch-unit-hbase-server.txt
Test Results	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-410/1/testReport/
Max. process+thread count	4570 (vs. ulimit of 10000)
modules	C: hbase-server U: hbase-server
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-410/1/console
versions	git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11
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