Dru, Using another table, but we're still not so sure that it does something bad apart from restarting the Map task (see the discussion between sebastien and stack in 810).
J-D On Mon, Aug 11, 2008 at 3:58 PM, Dru Jensen <[EMAIL PROTECTED]> wrote: > J-D, > > I have 4 regions for this table all on the same server. > > It looks like it may be related. I have started another test and will > verify. > > Is there a fix for this issue or should I create a intermediary table for > now? > > thanks, > Dru > > > On Aug 11, 2008, at 11:54 AM, Jean-Daniel Cryans wrote: > > 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) >>>>> >>>>> >>>> >>> >
