2013-07-16 16:25:26,052 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: 
java.lang.NullPointerException
	at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.getMaxTimestamp(StoreFile.java:1702)
	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.requestSeek(StoreFileScanner.java:301)
	at org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:127)
	at org.apache.hadoop.hbase.regionserver.Store.getScanner(Store.java:2070)
	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3383)
	at org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1628)
	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1620)
	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1596)
	at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4196)
	at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4170)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1990)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1400)
2013-07-16 16:25:27,178 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: 
java.lang.NullPointerException
	at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.getMaxTimestamp(StoreFile.java:1702)
	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.requestSeek(StoreFileScanner.java:301)
	at org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:127)
	at org.apache.hadoop.hbase.regionserver.Store.getScanner(Store.java:2070)
	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3383)
	at org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1628)
	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1620)
	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1596)
	at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4196)
	at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4170)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1990)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1400)