"IllegalStateException: Cannot set a region to be closed if it was not already marked as pending close"

...
2009-01-13 06:56:59,060 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: Worker: MSG_REGION_OPEN: content,0d952ef7d6d31c81552d84ec99c61138,1231777275065
2009-01-13 06:56:59,060 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Opening region content,0d952ef7d6d31c81552d84ec99c61138,1231777275065/2063013531
2009-01-13 06:56:59,106 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/1731769154213178962, isReference=false, sequence id=8231740, length=255693, majorCompaction=false
2009-01-13 06:56:59,129 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/2908303503677637558, isReference=false, sequence id=8485218, length=193497, majorCompaction=false
2009-01-13 06:56:59,138 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/4011669738439968964, isReference=false, sequence id=2657244, length=628824, majorCompaction=false
2009-01-13 06:56:59,159 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/4385158897188164442, isReference=false, sequence id=7927662, length=277950, majorCompaction=false
2009-01-13 06:56:59,168 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/5107758633254723438, isReference=false, sequence id=7687719, length=195595, majorCompaction=false
2009-01-13 06:56:59,172 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/5309895098547950637, isReference=false, sequence id=8544018, length=34716, majorCompaction=false
2009-01-13 06:56:59,247 DEBUG org.apache.hadoop.hbase.regionserver.HStore: loaded /data/hbase/content/2063013531/url/info/7261360197361933359, isReference=false, sequence id=7468745, length=192133, majorCompaction=false
2009-01-13 06:56:59,247 DEBUG org.apache.hadoop.hbase.regionserver.HStore: Loaded 7 file(s) in hstore 2063013531/url, max sequence id 8544018
2009-01-13 06:56:59,416 INFO org.apache.hadoop.hdfs.DFSClient: Could not obtain block blk_7710643799735487760_4996202 from any node:  java.io.IOException: No live nodes contain current block
2009-01-13 06:57:02,452 INFO org.apache.hadoop.hdfs.DFSClient: Could not obtain block blk_7710643799735487760_4996202 from any node:  java.io.IOException: No live nodes contain current block
2009-01-13 06:57:05,458 INFO org.apache.hadoop.hdfs.DFSClient: Could not obtain block blk_7710643799735487760_4996202 from any node:  java.io.IOException: No live nodes contain current block
2009-01-13 06:57:08,464 WARN org.apache.hadoop.hdfs.DFSClient: DFS Read: java.io.IOException: Could not obtain block: blk_7710643799735487760_4996202 file=/data/hbase/content/2063013531/url/mapfiles/5309895098547950637/index
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.chooseDataNode(DFSClient.java:1707)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1535)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1662)
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at java.io.DataInputStream.readFully(DataInputStream.java:152)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.init(SequenceFile.java:1464)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1442)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1431)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1426)
        at org.apache.hadoop.hbase.io.MapFile$Reader.open(MapFile.java:301)
        at org.apache.hadoop.hbase.io.HBaseMapFile$HBaseReader.<init>(HBaseMapFile.java:79)
        at org.apache.hadoop.hbase.io.BloomFilterMapFile$Reader.<init>(BloomFilterMapFile.java:65)
        at org.apache.hadoop.hbase.regionserver.HStoreFile.getReader(HStoreFile.java:443)
        at org.apache.hadoop.hbase.regionserver.HStore.setupReaders(HStore.java:259)
        at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:240)
        at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:1764)
        at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:276)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.instantiateRegion(HRegionServer.java:1367)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:1338)
        at org.apache.hadoop.hbase.regionserver.HRegionServer$Worker.run(HRegionServer.java:1253)
        at java.lang.Thread.run(Thread.java:619)

2009-01-13 06:57:08,466 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: Error opening content,0d952ef7d6d31c81552d84ec99c61138,1231777275065
java.io.IOException: Could not obtain block: blk_7710643799735487760_4996202 file=/data/hbase/content/2063013531/url/mapfiles/5309895098547950637/index
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.chooseDataNode(DFSClient.java:1707)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1535)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1662)
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at java.io.DataInputStream.readFully(DataInputStream.java:152)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.init(SequenceFile.java:1464)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1442)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1431)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1426)
        at org.apache.hadoop.hbase.io.MapFile$Reader.open(MapFile.java:301)
        at org.apache.hadoop.hbase.io.HBaseMapFile$HBaseReader.<init>(HBaseMapFile.java:79)
        at org.apache.hadoop.hbase.io.BloomFilterMapFile$Reader.<init>(BloomFilterMapFile.java:65)
        at org.apache.hadoop.hbase.regionserver.HStoreFile.getReader(HStoreFile.java:443)
        at org.apache.hadoop.hbase.regionserver.HStore.setupReaders(HStore.java:259)
        at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:240)
        at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:1764)
        at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:276)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.instantiateRegion(HRegionServer.java:1367)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:1338)
        at org.apache.hadoop.hbase.regionserver.HRegionServer$Worker.run(HRegionServer.java:1253)
        at java.lang.Thread.run(Thread.java:619)
2009-01-13 06:57:08,737 WARN org.apache.hadoop.hbase.regionserver.HRegionServer: Processing message (Retry: 0) java.io.IOException: java.io.IOException: java.lang.IllegalStateException: Cannot set a region to be closed if it was not already marked as pending close. State: name=content,0d952ef7d6d31c81552d84ec99c61138,1231777275065, unassigned=false, pendingOpen=true, open=false, closing=false, pendingClose=false, closed=false, offlined=false
        at org.apache.hadoop.hbase.master.RegionManager$RegionState.setClosed(RegionManager.java:1178)
        at org.apache.hadoop.hbase.master.RegionManager.setClosed(RegionManager.java:823)
        at org.apache.hadoop.hbase.master.ServerManager.processRegionClose(ServerManager.java:569)
        at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:404)
        at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:374)
...

2009-01-13 06:57:08,450 INFO org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_PROCESS_OPEN: content,810e91fecfad126862a26774bf34df75,1231783565254 from XX.XX.XX.50:60020
2009-01-13 06:57:08,734 INFO org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_CLOSE: content,0d952ef7d6d31c81552d84ec99c61138,1231777275065: java.io.IOException: Could not obtain block: blk_7710643799735487760_4996202 file=/data/hbase/content/2063013531/url/mapfiles/5309895098547950637/index
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.chooseDataNode(DFSClient.java:1707)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1535)
        at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1662)
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at java.io.DataInputStream.readFully(DataInputStream.java:152)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.init(SequenceFile.java:1464)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1442)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1431)
        at org.apache.hadoop.hbase.io.SequenceFile$Reader.<init>(SequenceFile.java:1426)
        at org.apache.hadoop.hbase.io.MapFile$Reader.open(MapFile.java:301)
        at org.apache.hadoop.hbase.io.HBaseMapFile$HBaseReader.<init>(HBaseMapFile.java:79)
        at org.apache.hadoop.hbase.io.BloomFilterMapFile$Reader.<init>(BloomFilterMapFile.java:65)
        at org.apache.hadoop.hbase.regionserver.HStoreFile.getReader(HStoreFile.java:443)
        at org.apache.hadoop.hbase.regionserver.HStore.setupReaders(HStore.java:259)
        at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:240)
        at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:1764)
        at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:276)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.instantiateRegion(HRegionServer.java:1367)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:1338)
        at org.apache.hadoop.hbase.regionserver.HRegionServer$Worker.run(HRegionServer.java:1253)
        at java.lang.Thread.run(Thread.java:619)
 from 10.30.94.33:60020
2009-01-13 06:57:08,735 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 4 on 60000, call regionServerReport(address: XX.XX.XX.33:60020, startcode: 1231829713428, load: (requests=0, regions=21, usedHeap=158, maxHeap=1774), [Lorg.apache.hadoop.hbase.HMsg;@17496e57, [Lorg.apache.hadoop.hbase.HRegionInfo;@55eb1db2) from 10.30.94.33:37051: error: java.io.IOException: java.lang.IllegalStateException: Cannot set a region to be closed if it was not already marked as pending close. State: name=content,0d952ef7d6d31c81552d84ec99c61138,1231777275065, unassigned=false, pendingOpen=true, open=false, closing=false, pendingClose=false, closed=false, offlined=false
java.io.IOException: java.lang.IllegalStateException: Cannot set a region to be closed if it was not already marked as pending close. State: name=content,0d952ef7d6d31c81552d84ec99c61138,1231777275065, unassigned=false, pendingOpen=true, open=false, closing=false, pendingClose=false, closed=false, offlined=false
        at org.apache.hadoop.hbase.master.RegionManager$RegionState.setClosed(RegionManager.java:1178)
        at org.apache.hadoop.hbase.master.RegionManager.setClosed(RegionManager.java:823)
        at org.apache.hadoop.hbase.master.ServerManager.processRegionClose(ServerManager.java:569)
        at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:404)
        at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:374)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:285)
        at org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:569)
        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$Server.call(HBaseRPC.java:632)
        at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:894)