Create table fails if we keep refreshing master's UI for task monitor status
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Key: HBASE-5675
URL: https://issues.apache.org/jira/browse/HBASE-5675
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 0.90.4
Reporter: Mubarak Seyed
I tried to create a table with 2K pre-split regions, region assignment was in
middle and i was keep refreshing master's web UI to find the status of the task
using task monitor, table creation was failed and {{META}} was showing 2K
regions with server location value is {{null}} and regions weren't deployed
onto region-servers.
{code}
table_ACreating table table_A
java.io.IOException: java.io.IOException:
java.util.ConcurrentModificationException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:95)
at
org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:79)
at
org.apache.hadoop.hbase.client.HBaseAdmin.createTableAsync(HBaseAdmin.java:384)
at
org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:294)
at com.test.tools.hbase.schema.createIfNotExists(schema.java:520)
at com.test.tools.hbase.schema.main(schema.java:627)
Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException:
java.util.ConcurrentModificationException
at java.util.SubList.checkForComodification(AbstractList.java:752)
at java.util.SubList.add(AbstractList.java:632)
at java.util.SubList.add(AbstractList.java:633)
at java.util.SubList.add(AbstractList.java:633)
..
..
at java.util.SubList.add(AbstractList.java:633)
at java.util.AbstractList.add(AbstractList.java:91)
at
org.apache.hadoop.hbase.monitoring.TaskMonitor.createStatus(TaskMonitor.java:76)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:510)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:490)
at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:853)
at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:813)
at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:780)
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1039)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:771)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257)
at $Proxy5.createTable(Unknown Source)
at
org.apache.hadoop.hbase.client.HBaseAdmin.createTableAsync(HBaseAdmin.java:382)
{code}
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