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From "Abin Shahab (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5804) HDFS NFS Gateway fails to mount and proxy when using Kerberos
Date Tue, 21 Jan 2014 20:11:19 GMT
Abin Shahab created HDFS-5804:
---------------------------------

             Summary: HDFS NFS Gateway fails to mount and proxy when using Kerberos
                 Key: HDFS-5804
                 URL: https://issues.apache.org/jira/browse/HDFS-5804
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: nfs
    Affects Versions: 2.2.0
            Reporter: Abin Shahab


When using HDFS nfs gateway with secure hadoop (hadoop.security.authentication: kerberos),
mounting hdfs fails. 
Additionally, there is no mechanism to support proxy user(nfs needs to proxy as the user invoking
commands on the hdfs mount).

Steps to reproduce:
1) start a hadoop cluster with kerberos enabled.
2) sudo su -l nfsserver and start an nfs server. This 'nfsserver' account has a an account
in kerberos.
3) Get the keytab for nfsserver, and issue the following mount command: mount -t nfs -o vers=3,proto=tcp,nolock
$server:/  $mount_point
4) You'll see in the nfsserver logs that Kerberos is complaining about not having a TGT for
root.
This is the stacktrace: 
java.io.IOException: Failed on local exception: java.io.IOException: org.apache.hadoop.security.AccessControlException:
Client cannot authenticate via:[TOKEN, KERBEROS]; Host Details : local host is: "my-nfs-server-host.com/10.252.4.197";
destination host is: "my-namenode-host.com":8020; 
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:764)
	at org.apache.hadoop.ipc.Client.call(Client.java:1351)
	at org.apache.hadoop.ipc.Client.call(Client.java:1300)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
	at com.sun.proxy.$Proxy9.getFileLinkInfo(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
	at com.sun.proxy.$Proxy9.getFileLinkInfo(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileLinkInfo(ClientNamenodeProtocolTranslatorPB.java:664)
	at org.apache.hadoop.hdfs.DFSClient.getFileLinkInfo(DFSClient.java:1713)
	at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3Utils.getFileStatus(Nfs3Utils.java:58)
	at org.apache.hadoop.hdfs.nfs.nfs3.Nfs3Utils.getFileAttr(Nfs3Utils.java:79)
	at org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3.fsinfo(RpcProgramNfs3.java:1643)
	at org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3.handleInternal(RpcProgramNfs3.java:1891)
	at org.apache.hadoop.oncrpc.RpcProgram.messageReceived(RpcProgram.java:143)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560)
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:787)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:281)
	at org.apache.hadoop.oncrpc.RpcUtil$RpcMessageParserStage.messageReceived(RpcUtil.java:132)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560)
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:787)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
	at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
	at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
	at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:560)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:555)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
	at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:107)
	at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88)
	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.io.IOException: org.apache.hadoop.security.AccessControlException: Client
cannot authenticate via:[TOKEN, KERBEROS]
	at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:620)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
	at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:583)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:667)
	at org.apache.hadoop.ipc.Client$Connection.access$2600(Client.java:314)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1399)
	at org.apache.hadoop.ipc.Client.call(Client.java:1318)
	... 43 more
Caused by: org.apache.hadoop.security.AccessControlException: Client cannot authenticate via:[TOKEN,
KERBEROS]
	at org.apache.hadoop.security.SaslRpcClient.selectSaslClient(SaslRpcClient.java:170)
	at org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:387)
	at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:494)
	at org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:314)
	at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:659)
	at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:655)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:654)



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