[HADOOP-15633] fs.TrashPolicyDefault: Can't create trash directory

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.3, 3.1.0, 3.0.3, 2.7.7
• Fix Version/s: 3.2.0, 3.1.2
• Component/s: common
• Assignee: Hui Fei
• Reporter: Hui Fei
• Created: 26/Jul/18 10:27
• Updated: 09/Mar/20 23:10
• Resolved: 27/Aug/18 19:03

Description

Reproduce it as follow

hadoop fs -mkdir /user/hadoop/aaa
hadoop fs -touchz /user/hadoop/aaa/bbb
hadoop fs -rm /user/hadoop/aaa/bbb
hadoop fs -mkdir /user/hadoop/aaa/bbb
hadoop fs -touchz /user/hadoop/aaa/bbb/ccc
hadoop fs -rm /user/hadoop/aaa/bbb/ccc

Then we get errors

18/07/26 17:55:24 WARN fs.TrashPolicyDefault: Can't create trash directory: hdfs://xxx/user/hadoop/.Trash/Current/user/hadoop/aaa/bbb
org.apache.hadoop.fs.FileAlreadyExistsException: Path is not a directory: /user/hadoop/.Trash/Current/user/hadoop/aaa/bbb
        at org.apache.hadoop.hdfs.server.namenode.FSDirMkdirOp.mkdirs(FSDirMkdirOp.java:65)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3961)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:984)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:622)
        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:982)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2115)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2111)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1867)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2111)

        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.primitiveMkdir(DFSClient.java:3002)
        at org.apache.hadoop.hdfs.DFSClient.mkdirs(DFSClient.java:2970)
        at org.apache.hadoop.hdfs.DistributedFileSystem$21.doCall(DistributedFileSystem.java:1047)
        at org.apache.hadoop.hdfs.DistributedFileSystem$21.doCall(DistributedFileSystem.java:1043)
        at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
        at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirsInternal(DistributedFileSystem.java:1061)
        at org.apache.hadoop.hdfs.DistributedFileSystem.mkdirs(DistributedFileSystem.java:1036)
        at org.apache.hadoop.fs.TrashPolicyDefault.moveToTrash(TrashPolicyDefault.java:136)
        at org.apache.hadoop.fs.Trash.moveToTrash(Trash.java:114)
        at org.apache.hadoop.fs.Trash.moveToAppropriateTrash(Trash.java:95)
        at org.apache.hadoop.fs.shell.Delete$Rm.moveToTrash(Delete.java:118)
        at org.apache.hadoop.fs.shell.Delete$Rm.processPath(Delete.java:105)
        at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:317)
        at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:289)
        at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:271)
        at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:255)
        at org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:201)
        at org.apache.hadoop.fs.shell.Command.run(Command.java:165)
        at org.apache.hadoop.fs.FsShell.run(FsShell.java:287)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
        at org.apache.hadoop.fs.FsShell.main(FsShell.java:340)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.fs.FileAlreadyExistsException): Path is not a directory: /user/hadoop/.Trash/Current/user/hadoop/aaa/bbb
        at org.apache.hadoop.hdfs.server.namenode.FSDirMkdirOp.mkdirs(FSDirMkdirOp.java:65)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3961)
        at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.mkdirs(NameNodeRpcServer.java:984)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.mkdirs(ClientNamenodeProtocolServerSideTranslatorPB.java:622)
        at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$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:982)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2115)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2111)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1867)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2111)

        at org.apache.hadoop.ipc.Client.call(Client.java:1474)
        at org.apache.hadoop.ipc.Client.call(Client.java:1412)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
        at com.sun.proxy.$Proxy10.mkdirs(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.mkdirs(ClientNamenodeProtocolTranslatorPB.java:558)
        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:253)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101)
        at com.sun.proxy.$Proxy11.mkdirs(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.primitiveMkdir(DFSClient.java:3000)
        ... 21 more

Issue Links

• Blocked: HADOOP-15893 fs.TrashPolicyDefault: can't create trash directory and race condition
• Blocked: HADOOP-16112 Delete the baseTrashPath's subDir leads to don't modify baseTrashPath