Xiaolin Ha created HBASE-21055:
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Summary: NullPointerException when balanceOverall() but server
balance info is null
Key: HBASE-21055
URL: https://issues.apache.org/jira/browse/HBASE-21055
Project: HBase
Issue Type: Bug
Components: Balancer
Affects Versions: 2.1.0
Reporter: Xiaolin Ha
Assignee: Xiaolin Ha
2018-08-15,10:07:30,456 ERROR [master/c4-hadoop-tst-ct15:42900.Chore.1]
org.apache.hadoop.hbase.ScheduledChore: Caught error
java.lang.NullPointerException
at
org.apache.hadoop.hbase.master.balancer.SimpleLoadBalancer.balanceOverall(SimpleLoadBalancer.java:482)
at
org.apache.hadoop.hbase.master.balancer.SimpleLoadBalancer.balanceCluster(SimpleLoadBalancer.java:426)
at
org.apache.hadoop.hbase.master.balancer.SimpleLoadBalancer.balanceCluster(SimpleLoadBalancer.java:592)
at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1535)
at org.apache.hadoop.hbase.master.HMaster.balance(HMaster.java:1466)
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)
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