Error while running partitioned HDHT-Operator

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Error while running partitioned HDHT-Operator

Hannes Hilbert

Hello all,

i am currently running into errors with a partitioned AbstractSinglePortHDHTWriter.
The Error is thrown while the HDHT tries to write the Data into the HDFS.
With just one Partition everything runs smoth.
So my first thought is that there is a problem with my bucket keys?
Or could it be the Datatorrent RTS Docker Sandbox Image that i am using?



2018-02-16 15:04:02,202 INFO com.datatorrent.stram.StreamingContainerParent: child msg: Stopped running due to an exception. java.lang.RuntimeException: Error while flushing write cache. at com.datatorrent.contrib.hdht.HDHTWriter.endWindow(HDHTWriter.java:704) 
at de.tudresden.inf.movebis.apex.operators.QualityPointCalculator.endWindow(QualityPointCalculator.java:103) 
at com.datatorrent.stram.engine.GenericNode.processEndWindow(GenericNode.java:153) 
at com.datatorrent.stram.engine.GenericNode.run(GenericNode.java:397) 
at com.datatorrent.stram.engine.StreamingContainer$2.run(StreamingContainer.java:1465) 
Caused by: java.io.FileNotFoundException: File does not exist: /user/dtadmin/WALQualityPointsDir/0/0-0 
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:71) 
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712) 
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:587) 
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365) 
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) 
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616) 
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969) 
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049) 
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:422) 
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) 
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043) 
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:423) 
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106) 
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73) 
at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1242) 
at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1227) 
at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1215) 
at org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:303) 
at org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:269) 
at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:261) 
at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1540) 
at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:303) 
at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:299) 
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) 
at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:299) 
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:767) 
at com.datatorrent.lib.fileaccess.FileAccessFSImpl.getInputStream(FileAccessFSImpl.java:115) 
at com.datatorrent.lib.fileaccess.TFileImpl$DefaultTFileImpl.getReader(TFileImpl.java:153) 
at com.datatorrent.contrib.hdht.HDHTWriter.writeDataFiles(HDHTWriter.java:562) 
at com.datatorrent.contrib.hdht.HDHTWriter.access$700(HDHTWriter.java:81) 
at com.datatorrent.contrib.hdht.HDHTWriter$1.run(HDHTWriter.java:795) 
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) 
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
at java.lang.Thread.run(Thread.java:748) 
Caused by: org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException): File does not exist: /user/dtadmin/WALQualityPointsDir/0/0-0 
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:71) 
at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799) 
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712) 
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:587) 
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365) 
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) 
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616) 
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969) 
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049) 
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:422) 
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) 
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043) 
at org.apache.hadoop.ipc.Client.call(Client.java:1476) 
at org.apache.hadoop.ipc.Client.call(Client.java:1407) 
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) 
at com.sun.proxy.$Proxy9.getBlockLocations(Unknown Source) 
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:255) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187) 
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) 
at com.sun.proxy.$Proxy10.getBlockLocations(Unknown Source) 
at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1240) 
... 23 more 
context: PTContainer[id=2(container_1518793292141_0001_01_000004),state=ACTIVE,operators=[PTOperator[id=2,name=qualityPointCalculator,state=ACTIVE]]]​​