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https://issues.apache.org/jira/browse/FLINK-21250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17278495#comment-17278495
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zhuxiaoshang commented on FLINK-21250:
--------------------------------------
[~trohrmann] [~roman_khachatryan],Could you offer some possible reasons of this
problem and some suggestions of how to investigate the problem. So we can try
to investigate by ourself. Thx very much.
> Failure to finalize checkpoint due to
> org.apache.hadoop.fs.FileAlreadyExistsException:
> /user/flink/checkpoints/9e36ed4ec2f6685f836e5ee5395f5f2e/chk-11096/_metadata
> for client xxx.xx.xx.xxx already exists
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-21250
> URL: https://issues.apache.org/jira/browse/FLINK-21250
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing
> Affects Versions: 1.10.1
> Reporter: Fangliang Liu
> Priority: Major
> Attachments: image-2021-02-03-19-39-19-611.png
>
>
> Flink Version :1.10.1
> The following exception will occasionally be thrown when the flink job is
> running on yarn. Checkpoint will always fail after the first exception is
> thrown.
> {code:java}
> level:WARNlocation:org.apache.flink.runtime.scheduler.SchedulerBase.lambda$acknowledgeCheckpoint$4(SchedulerBase.java:796)log:2021-02-03
> 15:39:03,447 bigbase_kafka_to_hive_push_push_user_date_active WARN
> org.apache.flink.runtime.jobmaster.JobMaster - Error while
> processing checkpoint acknowledgement message
> message:Error while processing checkpoint acknowledgement
> messagethread:jobmanager-future-thread-34throwable:org.apache.flink.runtime.checkpoint.CheckpointException:
> Could not finalize the pending checkpoint 11096. Failure reason: Failure to
> finalize checkpoint.
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:863)
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.receiveAcknowledgeMessage(CheckpointCoordinator.java:781)
> at
> org.apache.flink.runtime.scheduler.SchedulerBase.lambda$acknowledgeCheckpoint$4(SchedulerBase.java:794)
> at
> java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: org.apache.hadoop.fs.FileAlreadyExistsException:
> /user/flink/checkpoints/140ba889671225dea822a4e1f569379a/chk-11096/_metadata
> for client 172.xx.xx.xxx already exists
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:3021)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2908)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2792)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:615)
> at
> org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.create(AuthorizationProviderProxyClientProtocol.java:117)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:413)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$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:1073)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2278)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2274)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2272)
> 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.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1841)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1698)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1633)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:448)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$7.doCall(DistributedFileSystem.java:444)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:459)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:387)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:910)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:891)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:788)
> at
> org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.create(HadoopFileSystem.java:141)
> at
> org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.create(HadoopFileSystem.java:37)
> at
> org.apache.flink.runtime.state.filesystem.FsCheckpointMetadataOutputStream.<init>(FsCheckpointMetadataOutputStream.java:65)
> at
> org.apache.flink.runtime.state.filesystem.FsCheckpointStorageLocation.createMetadataOutputStream(FsCheckpointStorageLocation.java:109)
> at
> org.apache.flink.runtime.checkpoint.PendingCheckpoint.finalizeCheckpoint(PendingCheckpoint.java:274)
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:854)
> ... 9 more
> Caused by: org.apache.hadoop.ipc.RemoteException:
> /user/flink/checkpoints/140ba889671225dea822a4e1f569379a/chk-11096/_metadata
> for client 172.xx.xx.xxx already exists
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:3021)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2908)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2792)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:615)
> at
> org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.create(AuthorizationProviderProxyClientProtocol.java:117)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:413)
> 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:1073)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2278)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2274)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2272)
> at org.apache.hadoop.ipc.Client.call(Client.java:1476)
> at org.apache.hadoop.ipc.Client.call(Client.java:1413)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
> at com.sun.proxy.$Proxy25.create(Unknown Source)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:296)
> at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
> 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:191)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy26.create(Unknown Source)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1836)
> ... 25 more
> {code}
>
>
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