[HBASE-19263] Hbase BaseLoadBalancer

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.2.6
• Labels: balancer

Environment

hbase 1.2.6

• Assignee: Unassigned
• Reporter: SuperbDong
• Created: 15/Nov/17 10:00
• Updated: 09/Apr/19 19:16

Description

hbase master as a regionserver,BaseLoadBalancer throw Exception ArrayIndexOutOfBoundsException because of count of region is contain hbase master.However,hbase master can not resign any region except hbase-site.xml config.

java.lang.ArrayIndexOutOfBoundsException: 2
at org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer$Cluster.getLocalityOfRegion(BaseLoadBalancer.java:843)
at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer$LocalityCostFunction.cost(StochasticLoadBalancer.java:1076)
at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.computeCost(StochasticLoadBalancer.java:413)
at org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.balanceCluster(StochasticLoadBalancer.java:280)
at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1341)
at org.apache.hadoop.hbase.master.balancer.BalancerChore.chore(BalancerChore.java:48)
at org.apache.hadoop.hbase.ScheduledChore.run(ScheduledChore.java:185)
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$JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecutorImpl.java:110)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

Issue Links

• is related to: HBASE-20936 BaseLoadBalancer throws ArrayIndexOutOfBoundsException