Are you seeing hiccups in the scans ahead of this exception -- scan next retrying? Are the rows large? Try fetching in smaller batches, smaller than 100. St.Ack
On Mon, Sep 7, 2015 at 3:56 AM, Li Li <fancye...@gmail.com> wrote: > I am using titan which use hbase as it's storage engine. The hbase > version is 1.0.0-cdh5.4.4. > it's a full table scan over a large table. Is there any configuration > I can change to tackle this problem. > The exception stack is: > > Exception in thread "main" java.lang.RuntimeException: > org.apache.hadoop.hbase.DoNotRetryIOException: Failed after retry of > OutOfOrderScannerNextException: was there a rpc timeout? > > at > org.apache.hadoop.hbase.client.AbstractClientScanner$1.hasNext(AbstractClientScanner.java:94) > > at > com.google.common.collect.Iterators$8.computeNext(Iterators.java:686) > > at > com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143) > > at > com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) > > at > com.thinkaurelius.titan.diskstorage.hbase.HBaseKeyColumnValueStore$RowIterator.hasNext(HBaseKeyColumnValueStore.java:289) > > at > com.thinkaurelius.titan.graphdb.database.StandardTitanGraph$2.hasNext(StandardTitanGraph.java:343) > > at > com.thinkaurelius.titan.graphdb.transaction.VertexIterable$1.nextVertex(VertexIterable.java:34) > > at > com.thinkaurelius.titan.graphdb.transaction.VertexIterable$1.next(VertexIterable.java:55) > > at > com.thinkaurelius.titan.graphdb.transaction.VertexIterable$1.next(VertexIterable.java:27) > > at > com.google.common.collect.Iterators$8.computeNext(Iterators.java:687) > > at > com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143) > > at > com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) > > at > com.mobvoi.knowledgegraph.storage.v2.music.DumpAllNodesAndEdges.main(DumpAllNodesAndEdges.java:34) > > Caused by: org.apache.hadoop.hbase.DoNotRetryIOException: Failed after > retry of OutOfOrderScannerNextException: was there a rpc timeout? > > at > org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:384) > > at > org.apache.hadoop.hbase.client.AbstractClientScanner$1.hasNext(AbstractClientScanner.java:91) > > ... 12 more > > Caused by: > org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException: > org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException: > Expected nextCallSeq: 2 But the nextCallSeq > > got from client: 1; request=scanner_id: 11996 number_of_rows: 100 > close_scanner: false next_call_seq: 1 > > at > org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2144) > > at > org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:31443) > > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2035) > > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:107) > > 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:57) > > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > > 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:284) > > at > org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:198) > > at > org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:57) > > at > org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:114) > > at > org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:90) > > at > org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:336) >
