Dru, Apart from doing a 'tail' on all your region server logs, watching your number of regions in the web UI. How many regions do you have currently in your table?
J-D On Mon, Aug 11, 2008 at 2:52 PM, Dru Jensen <[EMAIL PROTECTED]> wrote: > Hi J-D, > > I am writing to the same table that I'm scanning, however I get this often > and would be surprised if its caused by a split. > > How can I determine if a split is occurring? > > thanks, > Dru > > > On Aug 11, 2008, at 11:35 AM, Jean-Daniel Cryans wrote: > > Dru, >> >> Can you tell me if your situation is the same on as in >> https://issues.apache.org/jira/browse/HBASE-810 >> >> Thx, >> >> J-D >> >> On Mon, Aug 11, 2008 at 2:35 PM, Dru Jensen <[EMAIL PROTECTED]> wrote: >> >> What causes the following error? It's coming from the >>> TableInputFormatBase >>> class. It seems to be fairly random for me. >>> >>> From what I've read so far, its related to a timeout error? I verified >>> my >>> map task doesn't take long to process. Anything else that may cause >>> this? >>> >>> org.apache.hadoop.hbase.UnknownScannerException: >>> org.apache.hadoop.hbase.UnknownScannerException: Name: >>> 4797186499140551292 >>> at >>> >>> org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1115) >>> at sun.reflect.GeneratedMethodAccessor4.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$Server.call(HbaseRPC.java:473) >>> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896) >>> >>> 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.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:885) >>> at >>> >>> org.apache.hadoop.hbase.client.HTable$ClientScanner.next(HTable.java:1321) >>> at >>> >>> org.apache.hadoop.hbase.mapred.TableInputFormatBase$TableRecordReader.next(TableInputFormatBase.java:202) >>> at >>> >>> org.apache.hadoop.hbase.mapred.TableInputFormatBase$TableRecordReader.next(TableInputFormatBase.java:84) >>> at >>> >>> org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:158) >>> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:45) >>> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219) >>> at >>> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2124) >>> >> >
