[HBASE-2293] CME in RegionManager#isMetaServer

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.20.4, 0.90.0
• Hadoop Flags: Reviewed
• Assignee: Jean-Daniel Cryans
• Reporter: Michael Stack
• Created: 05/Mar/10 22:43
• Updated: 12/Oct/12 06:14
• Resolved: 06/Mar/10 07:03

Description

2010-03-05 14:26:17,990 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 84 on 60000, call regionServerReport(address: 98.137.30.50:60020, startcode: 1267824847596, load: (requests=0, regions=163, usedHeap=3113, maxHeap=5983), [Lorg.apache.hadoop.hbase.HMsg;@5446315a, [Lorg.apache.hadoop.hbase.HRegionInfo;@4c5236ef) from 98.137.30.50:48101: error: java.io.IOException: java.util.ConcurrentModificationException
java.io.IOException: java.util.ConcurrentModificationException
       at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
       at java.util.TreeMap$ValueIterator.next(TreeMap.java:1145)
       at org.apache.hadoop.hbase.master.RegionManager.isMetaServer(RegionManager.java:832)
       at org.apache.hadoop.hbase.master.RegionManager.regionsAwaitingAssignment(RegionManager.java:391)
       at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:196)
       at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:488)
       at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:414)
       at org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:323)
       at org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:724)
       at sun.reflect.GeneratedMethodAccessor2.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$Server.call(HBaseRPC.java:657)
       at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)