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From Konstantinos Kougios <kostas.koug...@googlemail.com>
Subject WARN client.ScannerCallable: Ignore, probably already closed
Date Mon, 28 Sep 2015 19:35:03 GMT
I've got a 500 mil rows table on a fairly mediocre cluster. I had some 
timeout issues running a count(*) but those are sorted. Now I get a diff 
issue, any ideas?

15/09/28 20:24:07 WARN client.ScannerCallable: Ignore, probably already 
closed
org.apache.hadoop.hbase.UnknownScannerException: 
org.apache.hadoop.hbase.UnknownScannerException: Name: 874, already closed?
     at 
org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2223)
     at 
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32205)
     at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2114)
     at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
     at 
org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
     at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
     at java.lang.Thread.run(Thread.java:745)

     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
     at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
     at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
     at 
org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
     at 
org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
     at 
org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:322)
     at 
org.apache.hadoop.hbase.client.ScannerCallable.close(ScannerCallable.java:357)
     at 
org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:195)
     at 
org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:142)
     at 
org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:61)
     at 
org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:126)
     at 
org.apache.hadoop.hbase.client.StatsTrackingRpcRetryingCaller.callWithoutRetries(StatsTrackingRpcRetryingCaller.java:56)
     at 
org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:320)
     at 
org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:258)
     at 
org.apache.hadoop.hbase.client.ClientScanner.possiblyNextScanner(ClientScanner.java:241)
     at 
org.apache.hadoop.hbase.client.ClientScanner.loadCache(ClientScanner.java:532)
     at 
org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:364)
     at 
org.apache.phoenix.iterate.ScanningResultIterator.next(ScanningResultIterator.java:55)
     at 
org.apache.phoenix.iterate.TableResultIterator.next(TableResultIterator.java:107)
     at 
org.apache.phoenix.iterate.SpoolingResultIterator.<init>(SpoolingResultIterator.java:125)
     at 
org.apache.phoenix.iterate.SpoolingResultIterator.<init>(SpoolingResultIterator.java:83)
     at 
org.apache.phoenix.iterate.SpoolingResultIterator.<init>(SpoolingResultIterator.java:62)
     at 
org.apache.phoenix.iterate.SpoolingResultIterator$SpoolingResultIteratorFactory.newIterator(SpoolingResultIterator.java:78)
     at 
org.apache.phoenix.iterate.ParallelIterators$1.call(ParallelIterators.java:109)
     at 
org.apache.phoenix.iterate.ParallelIterators$1.call(ParallelIterators.java:100)
     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
     at 
org.apache.phoenix.job.JobManager$InstrumentedJobFutureTask.run(JobManager.java:183)
     at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
     at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
     at java.lang.Thread.run(Thread.java:745)
Caused by: 
org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.UnknownScannerException):

org.apache.hadoop.hbase.UnknownScannerException: Name: 874, already closed?
     at 
org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2223)
     at 
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32205)
     at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2114)
     at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
     at 
org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:130)
     at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
     at java.lang.Thread.run(Thread.java:745)

     at 
org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1196)
     at 
org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:213)
     at 
org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:287)
     at 
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:32651)
     at 
org.apache.hadoop.hbase.client.ScannerCallable.close(ScannerCallable.java:355)
     ... 23 more


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