Multiple partitions do write to the same directory but they write to different files in that directory.
I didn't see other failures in the log - as an aside, is it possible to increase the length of the log in the DT UI itself? Sent with Good (www.good.com) ________________________________ From: Thomas Weise <[email protected]> Sent: Friday, March 11, 2016 10:24:11 AM To: [email protected] Subject: Re: Long-running HDFS Write errors Does this happen after operator recovery or before any other failure occurs? Is it possible that multiple partitions write to the same directory? On Fri, Mar 11, 2016 at 7:12 AM, Ganelin, Ilya <[email protected]> wrote: > This is 3.0.0. > > > > Sent with Good (www.good.com<http://www.good.com>) > ________________________________ > From: Thomas Weise <[email protected]> > Sent: Friday, March 11, 2016 2:02:13 AM > To: [email protected] > Subject: Re: Long-running HDFS Write errors > > Which version of Malhar is this? > > > On Thu, Mar 10, 2016 at 10:56 PM, Ganelin, Ilya < > [email protected] > > wrote: > > > Hello – I have a long-running job which simultaneously writes to multiple > > files on HDFS. I am seeing the following error come up: > > > > I would appreciate any insight into what’s going on here. > > > > > > Stopped running due to an exception. > > com.google.common.util.concurrent.UncheckedExecutionException: > > java.lang.RuntimeException: > > > org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException): > > Failed to create file > > > [/user/vault8/citadel_out/2016_03_20_17_34_339/records/[email protected] > ] > > for [DFSClient_NONMAPREDUCE_232430238_1207] for client [10.24.28.64], > > because this file is already being created by > > [DFSClient_NONMAPREDUCE_-1482819983_1172] on [10.24.28.64] > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:3122) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInternal(FSNamesystem.java:2905) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInt(FSNamesystem.java:3186) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:3149) > > at > > > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.append(NameNodeRpcServer.java:611) > > at > > > org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.append(AuthorizationProviderProxyClientProtocol.java:124) > > at > > > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.append(ClientNamenodeProtocolServerSideTranslatorPB.java:416) > > at > > > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) > > at > > > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617) > > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082) > > at java.security.AccessController.doPrivileged(Native Method) > > at javax.security.auth.Subject.doAs(Subject.java:415) > > at > > > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671) > > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080) > > > > at > > com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2234) > > at com.google.common.cache.LocalCache.get(LocalCache.java:3965) > > at > > com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969) > > at > > > com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4829) > > at > > > com.datatorrent.lib.io.fs.AbstractFileOutputOperator.processTuple(AbstractFileOutputOperator.java:667) > > at > > > com.datatorrent.lib.io.fs.AbstractFileOutputOperator$1.process(AbstractFileOutputOperator.java:236) > > at > > com.datatorrent.api.DefaultInputPort.put(DefaultInputPort.java:67) > > at > > > com.datatorrent.stram.stream.BufferServerSubscriber$BufferReservoir.sweep(BufferServerSubscriber.java:244) > > at > > com.datatorrent.stram.engine.GenericNode.run(GenericNode.java:226) > > at > > > com.datatorrent.stram.engine.StreamingContainer$2.run(StreamingContainer.java:1365) > > Caused by: java.lang.RuntimeException: > > > org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException): > > Failed to create file > > > [/user/vault8/citadel_out/2016_03_20_17_34_339/records/[email protected] > ] > > for [DFSClient_NONMAPREDUCE_232430238_1207] for client [10.24.28.64], > > because this file is already being created by > > [DFSClient_NONMAPREDUCE_-1482819983_1172] on [10.24.28.64] > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:3122) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInternal(FSNamesystem.java:2905) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInt(FSNamesystem.java:3186) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:3149) > > at > > > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.append(NameNodeRpcServer.java:611) > > at > > > org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.append(AuthorizationProviderProxyClientProtocol.java:124) > > at > > > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.append(ClientNamenodeProtocolServerSideTranslatorPB.java:416) > > at > > > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) > > at > > > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617) > > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082) > > at java.security.AccessController.doPrivileged(Native Method) > > at javax.security.auth.Subject.doAs(Subject.java:415) > > at > > > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671) > > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080) > > > > at > > > com.datatorrent.lib.io.fs.AbstractFileOutputOperator$3.load(AbstractFileOutputOperator.java:414) > > at > > > com.datatorrent.lib.io.fs.AbstractFileOutputOperator$3.load(AbstractFileOutputOperator.java:334) > > at > > > com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3568) > > at > > com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2350) > > at > > > com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2313) > > at > > com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2228) > > ... 9 more > > Caused by: > > > org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException): > > Failed to create file > > > [/user/vault8/citadel_out/2016_03_20_17_34_339/records/[email protected] > ] > > for [DFSClient_NONMAPREDUCE_232430238_1207] for client [10.24.28.64], > > because this file is already being created by > > [DFSClient_NONMAPREDUCE_-1482819983_1172] on [10.24.28.64] > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.recoverLeaseInternal(FSNamesystem.java:3122) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInternal(FSNamesystem.java:2905) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFileInt(FSNamesystem.java:3186) > > at > > > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:3149) > > at > > > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.append(NameNodeRpcServer.java:611) > > at > > > org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.append(AuthorizationProviderProxyClientProtocol.java:124) > > at > > > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.append(ClientNamenodeProtocolServerSideTranslatorPB.java:416) > > at > > > org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java) > > at > > > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617) > > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086) > > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082) > > at java.security.AccessController.doPrivileged(Native Method) > > at javax.security.auth.Subject.doAs(Subject.java:415) > > at > > > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671) > > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080) > > > > at org.apache.hadoop.ipc.Client.call(Client.java:1472) > > at org.apache.hadoop.ipc.Client.call(Client.java:1403) > > at > > > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230) > > at com.sun.proxy.$Proxy14.append(Unknown Source) > > at > > > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.append(ClientNamenodeProtocolTranslatorPB.java:313) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > > at > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > > at java.lang.reflect.Method.invoke(Method.java:606) > > at > > > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:252) > > at > > > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104) > > at com.sun.proxy.$Proxy15.append(Unknown Source) > > at > org.apache.hadoop.hdfs.DFSClient.callAppend(DFSClient.java:1842) > > at org.apache.hadoop.hdfs.DFSClient.append(DFSClient.java:1878) > > at org.apache.hadoop.hdfs.DFSClient.append(DFSClient.java:1871) > > at > > > org.apache.hadoop.hdfs.DistributedFileSystem$4.doCall(DistributedFileSystem.java:329) > > at > > > org.apache.hadoop.hdfs.DistributedFileSystem$4.doCall(DistributedFileSystem.java:325) > > at > > > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > > at > > > org.apache.hadoop.hdfs.DistributedFileSystem.append(DistributedFileSystem.java:325) > > at org.apache.hadoop.fs.FileSystem.append(FileSystem.java:1172) > > at > > > com.datatorrent.lib.io.fs.AbstractFileOutputOperator$3.load(AbstractFileOutputOperator.java:371) > > ... 14 more > > ________________________________________________________ > > > > The information contained in this e-mail is confidential and/or > > proprietary to 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