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https://issues.apache.org/jira/browse/HADOOP-14699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeff Storck resolved HADOOP-14699.
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Resolution: Resolved
This issue will be resolved by HADOOP-9747.
> 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}
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