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Bharat Viswanadham commented on HADOOP-14699: --------------------------------------------- [~xiaochen] I think HADOOP-9747 is still not backported to branch-2. > Impersonation errors with UGI after second principal relogin > ------------------------------------------------------------ > > Key: HADOOP-14699 > URL: https://issues.apache.org/jira/browse/HADOOP-14699 > Project: Hadoop Common > Issue Type: Bug > Components: common > Affects Versions: 2.6.2, 2.7.3, 2.8.1 > Reporter: Jeff Storck > Priority: Major > > Multiple principals that are logged in using UGI instances that are > instantiated from a UGI class loaded by the same classloader will encounter > problems when the second principal attempts to relogin and perform an action > using a UGI.doAs(). An impersonation will occur and the operation attempted > by the second principal after relogging in will fail. There should not be an > implicit attempt to impersonate the second principal through the first > principal that logged in. > I have created a GitHub project that exhibits the impersonation error with > brief instructions on how to set up for the test and run it: > https://github.com/jtstorck/ugi-test > {noformat}18:44:55.687 [pool-2-thread-2] WARN > h.u.u.ugirunnable.ugite...@example.com - Unexpected exception while > performing task for [ugite...@example.com (auth:KERBEROS)] > org.apache.hadoop.ipc.RemoteException: User: ugite...@example.com is not > allowed to impersonate ugite...@example.com > at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1481) > at org.apache.hadoop.ipc.Client.call(Client.java:1427) > at org.apache.hadoop.ipc.Client.call(Client.java:1337) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:227) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116) > at com.sun.proxy.$Proxy9.getFileInfo(Unknown Source) > at > org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:787) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:398) > at > org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:163) > at > org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:155) > at > org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95) > at > org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:335) > at com.sun.proxy.$Proxy10.getFileInfo(Unknown Source) > at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1700) > at > org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1436) > at > org.apache.hadoop.hdfs.DistributedFileSystem$27.doCall(DistributedFileSystem.java:1433) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1448) > at > hadoop.ugitest.UgiTestMain$UgiRunnable.lambda$run$2(UgiTestMain.java:194) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807) > at hadoop.ugitest.UgiTestMain$UgiRunnable.run(UgiTestMain.java:194) > 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:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745){noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org