AnsweredAssumed Answered

impersonating a user doesnt work

Question asked by gowri_shankar on Dec 29, 2013
Latest reply on Jan 7, 2014 by gowri_shankar
I am trying to access my mapr m7 cluster from a windows client. I followed the instructions given in http://doc.mapr.com/display/MapR/Setting+Up+the+Client#SettingUptheClient-windows-client

I get the following error when i tried to do hadoop fs -ls
<pre>
13/12/30 18:17:41 WARN util.NativeCodeLoader: Unable to load native-hadoop libra
ry for your platform... using builtin-java classes where applicable
13/12/30 18:17:41 INFO security.JniBasedUnixGroupsMappingWithFallback: Falling b
ack to shell based
2013-12-30 18:17:42,0753 ERROR Client fs/client/fileclient/cc/client.cc:4355 Thr
ead: -2 User 500 is attempting to impersonate user 0 but impersonation is not en
abled for 500.  Check your configuration to ensure that impersonation is enabled
 for 500
2013-12-30 18:17:42,0763 ERROR JniCommon fs/client/fileclient/cc/jni_common.cc:8
009 Thread: -2 SetThreadUser: User 0 is not authorized to perform this operation

ls: Cannot access .: No such file or directory.
</pre>

What is the issue? How should I enable impersonisation ? Is it a client side or cluster side issue?

Thanks for the info

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