Region assigned to two regionservers after split

After reassignment of region split, scanners (mapred tasks) fail:

org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact region server 10.30.94.49:60020 for region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257, row 'c4e518dc579ca98bf97ea13d1f7c80fc', but failed after 10 attempts.
Exceptions:
java.io.IOException: java.io.IOException: HStoreScanner failed construction
at org.apache.hadoop.hbase.regionserver.StoreFileScanner.(StoreFileScanner.java:70)
at org.apache.hadoop.hbase.regionserver.HStoreScanner.(HStoreScanner.java:84)
at org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:2113)
at org.apache.hadoop.hbase.regionserver.HRegion$HScanner.(HRegion.java:1847)
at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1158)
at org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1521)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:634)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:888)
Caused by: java.io.FileNotFoundException: File does not exist: hdfs://sjdc-atr-dc-1.atr.trendmicro.com:50000/data/hbase/content/1137747785/info/mapfiles/3405780294391796198/data
at org.apache.hadoop.dfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:394)
at org.apache.hadoop.fs.FileSystem.getLength(FileSystem.java:695)
at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:1420)
at org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:1415)
at org.apache.hadoop.io.MapFile$Reader.createDataFileReader(MapFile.java:301)
at org.apache.hadoop.hbase.io.HBaseMapFile$HBaseReader.createDataFileReader(HBaseMapFile.java:98)
at org.apache.hadoop.io.MapFile$Reader.open(MapFile.java:283)
at org.apache.hadoop.hbase.io.HBaseMapFile$HBaseReader.(HBaseMapFile.java:81)
at org.apache.hadoop.hbase.io.BloomFilterMapFile$Reader.(BloomFilterMapFile.java:66)
at org.apache.hadoop.hbase.io.HalfMapFileReader.(HalfMapFileReader.java:86)
at org.apache.hadoop.hbase.regionserver.HStoreFile.getReader(HStoreFile.java:438)
at org.apache.hadoop.hbase.regionserver.StoreFileScanner.openReaders(StoreFileScanner.java:96)
at org.apache.hadoop.hbase.regionserver.StoreFileScanner.(StoreFileScanner.java:67)
... 10 more

According to the master the regions around this row are:

content,c4580f7292ceb2f6c8d732d935302633,1228328680554 10.30.94.50:60020 693011073 c4580f7292ceb2f6c8d732d935302633 c4e518dc579ca98bf97ea13d1f7c80fc
content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257 10.30.94.49:60020 2031068422 c4e518dc579ca98bf97ea13d1f7c80fc c528c8864e67a3addcb50587586dfe38

On 10.30.94.49, just before the HStoreScanner exceptions begin:

2008-12-04 16:18:30,538 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN: content,c528c8864e67a3addcb50587586dfe38,1228407504257
2008-12-04 16:18:30,539 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:30,539 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: Worker: MSG_REGION_OPEN: content,c528c8864e67a3addcb50587586dfe38,1228407504257
2008-12-04 16:18:30,633 INFO org.apache.hadoop.hbase.regionserver.HRegion: region content,c528c8864e67a3addcb50587586dfe38,1228407504257/1813242175 available
2008-12-04 16:18:30,633 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: Worker: MSG_REGION_OPEN: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:30,725 INFO org.apache.hadoop.hbase.regionserver.HRegion: region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257/2031068422 available
2008-12-04 16:18:36,659 INFO org.apache.hadoop.hbase.regionserver.HRegion: starting compaction on region content,c528c8864e67a3addcb50587586dfe38,1228407504257
2008-12-04 16:18:36,673 ERROR org.apache.hadoop.hbase.regionserver.CompactSplitThread: Compaction failed for region content,c528c8864e67a3addcb50587586dfe38,1228407504257
java.lang.NullPointerException
at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:863)
at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:708)
at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:666)
at org.apache.hadoop.hbase.regionserver.CompactSplitThread.run(CompactSplitThread.java:87)
2008-12-04 16:18:36,689 INFO org.apache.hadoop.hbase.regionserver.HRegion: starting compaction on region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:36,691 ERROR org.apache.hadoop.hbase.regionserver.CompactSplitThread: Compaction failed for region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
java.lang.NullPointerException
at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:863)
at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:708)
at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:666)
at org.apache.hadoop.hbase.regionserver.CompactSplitThread.run(CompactSplitThread.java:87)

This is the region history:

content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
Thu, 4 Dec 2008 11:18:33 open Region opened on server : 10.30.94.49
Thu, 4 Dec 2008 11:18:30 assignment Region assigned to server 10.30.94.49:60020
Thu, 4 Dec 2008 11:18:28 open Region opened on server : 10.30.94.54:60020
Thu, 4 Dec 2008 11:18:25 assignment Region assigned to server 10.30.94.54:60020
Thu, 4 Dec 2008 11:18:25 split Region split from: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554

On 10.30.94.49:

2008-12-04 16:17:39,550 INFO org.apache.hadoop.hbase.regionserver.HRegionServer:
MSG_REGION_OPEN: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554
2008-12-04 16:17:39,550 INFO org.apache.hadoop.hbase.regionserver.HRegionServer:
MSG_REGION_OPEN: content,61938ad11c92493c1aac82932651b873,1228317826934
2008-12-04 16:18:17,469 INFO org.apache.hadoop.hbase.regionserver.HRegion: starting compaction on region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554
2008-12-04 16:18:24,255 INFO org.apache.hadoop.hbase.regionserver.HRegion: compac
tion completed on region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554 in 6sec
2008-12-04 16:18:24,255 INFO org.apache.hadoop.hbase.regionserver.HRegion: Starting split of region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554
2008-12-04 16:18:24,258 INFO org.apache.hadoop.hbase.regionserver.HRegion: Closed content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554
2008-12-04 16:18:24,745 INFO org.apache.hadoop.hbase.regionserver.HRegion: region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257/2031068422 available
2008-12-04 16:18:24,746 INFO org.apache.hadoop.hbase.regionserver.HRegion: Closed content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:25,051 INFO org.apache.hadoop.hbase.regionserver.HRegion: region content,c528c8864e67a3addcb50587586dfe38,1228407504257/1813242175 available
2008-12-04 16:18:25,052 INFO org.apache.hadoop.hbase.regionserver.HRegion: Closed content,c528c8864e67a3addcb50587586dfe38,1228407504257
2008-12-04 16:18:25,066 INFO org.apache.hadoop.hbase.regionserver.CompactSplitThread: region split, META updated, and report to master all successful. Old region=
REGION => {NAME => content,c4e518dc579ca98bf97ea13d1f7c80fc,1228328680554', STARTKEY => 'c4e518dc579ca98bf97ea13d1f7c80fc', ENDKEY => c56eb508be0009d04429b6977c
91a425', ENCODED => 1137747785, OFFLINE => true, SPLIT => true, TABLE => {{NAME => 'content', IS_ROOT => 'false', IS_META => 'false', FAMILIES => [

{NAME => 'url', BLOOMFILTER => 'false', VERSIONS => '1', COMPRESSION => 'NONE', LENGTH => '2147483647', TTL => '2592000', IN_MEMORY => 'false', BLOCKCACHE => 'false'}

,

{NAME => 'info', BLOOMFILTER => 'false', VERSIONS => '1', COMPRESSION => 'NONE', LENGTH => '2147483647', TTL => '2592000', IN_MEMORY => 'false', BLOCKCACHE => 'false'}

,

{NAME => 'content', BLOOMFILTER => 'false', VERSIONS => '1', COMPRESSION => 'NONE', LENGTH => '2147483647', TTL => '2592000', IN_MEMORY => 'false', BLOCKCACHE => 'false'}

]}}, new regions: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257, content,c528c8864e67a3addcb50587586dfe38,1228407504257. Split took 0sec

On 10.30.94.54:

2008-12-04 16:18:25,681 INFO org.apache.hadoop.hbase.regionserver.HRegionServer:
Worker: MSG_REGION_OPEN: content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:25,681 INFO org.apache.hadoop.hbase.regionserver.HRegion: starting compaction on region content,c528c8864e67a3addcb50587586dfe38,1228407504257
2008-12-04 16:18:25,867 INFO org.apache.hadoop.hbase.regionserver.HRegion: region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257/2031068422 available
2008-12-04 16:18:32,951 INFO org.apache.hadoop.hbase.regionserver.HRegion: compaction completed on region content,c528c8864e67a3addcb50587586dfe38,1228407504257 in 7sec
2008-12-04 16:18:32,951 INFO org.apache.hadoop.hbase.regionserver.HRegion: starting compaction on region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257
2008-12-04 16:18:35,882 INFO org.apache.hadoop.hbase.regionserver.HRegion: compaction completed on region content,c4e518dc579ca98bf97ea13d1f7c80fc,1228407504257 in 2sec