I tried scan a 1 thousand * 1 thousand table twice on mapreduce.
BTW, What is this exception mean?
----
08/02/18 11:34:53 INFO mapred.JobClient: Task Id :
task_200802181109_0002_m_000000_1, Status : FAILED
org.apache.hadoop.hbase.UnknownScannerException:
org.apache.hadoop.hbase.UnknownScannerException: -4925937627020823950
at org.apache.hadoop.hbase.HRegionServer.close(HRegionServer.java:1543)
at sun.reflect.GeneratedMethodAccessor11.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$Server.call(HbaseRPC.java:413)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:910)
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.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:82)
at org.apache.hadoop.hbase.HTable$ClientScanner.close(HTable.java:1169)
at
org.apache.hadoop.hama.mapred.TableInputFormat$TableRecordReader.close(Unknown
Source)
at
org.apache.hadoop.mapred.MapTask$TrackedRecordReader.close(MapTask.java:155)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:212)
at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2065)
--
B. Regards,
Edward yoon @ NHN, corp.
