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Posts: 16
Registered: ‎12-04-2013
Accepted Solution

Oozie-Error: E0501: User: oozie is not allowed to impersonate root

[ Edited ]

I manually installed a single-node cluster according to the cloudera instructions and this oozie example worked fine. But now I am manually installing a three-node cluster, and running the Oozie example (http://archive.cloudera.com/cdh4/cdh/4/oozie/DG_Examples.html) does not work.

 

I did everything according to the instructions:

 

Create the Oozie DB:

 

CREATE DATABASE oozie;
GRANT ALL PRIVILEGES ON  oozie.* TO 'oozie'@'localhost' IDENTIFIED BY 'oozie';
GRANT ALL PRIVILEGES ON oozie.* TO 'oozie'@'%' IDENTIFIED BY 'oozie';
exit;

 

Edit the oozie-site.xml file:

 

    <property>
        <name>oozie.service.JPAService.jdbc.driver</name>
        <value>com.mysql.jdbc.Driver</value>
    </property>
    <property>
        <name>oozie.service.JPAService.jdbc.url</name>
        <value>jdbc:mysql://MY-VM-ALIAS:3306/oozie</value>
    </property>
    <property>
        <name>oozie.service.JPAService.jdbc.username</name>
        <value>oozie</value>
    </property>
    <property>
        <name>oozie.service.JPAService.jdbc.password</name>
        <value>oozie</value>
    </property>

 

(where MY-VM-ALIAS is in the /etc/hosts file as usual)

 

Put the MySQL Connector in /var/lib/oozie

 

Run the DB Creation tool successfully:

 

sudo -u oozie /usr/lib/oozie/bin/ooziedb.sh create -run

 

Install the ShareLib via:

 

sudo -u hdfs hadoop fs -mkdir  /user/oozie
sudo -u hdfs hadoop fs -chown oozie:oozie /user/oozie
mkdir /tmp/ooziesharelib
cd /tmp/ooziesharelib
tar xzf /usr/lib/oozie/oozie-sharelib.tar.gz
sudo -u oozie hadoop fs -put share /user/oozie/share

 

Start the oozie server

 

Download and unzip the tar file on the Master Node with the Oozie server.

 

Verify that JobTracker is on port 8021 (by mapred-site.xml) and that NameNode is on port 8020 (by core-site.xml) as listed in the examples/apps/map-reduce/job.properties file:

 

nameNode=hdfs://MY-VM-ALIAS:8020
jobTracker=MY-VM-ALIAS:8021
queueName=default
examplesRoot=examples

oozie.wf.application.path=${nameNode}/user/${user.name}/${examplesRoot}/apps/map-reduce
outputDir=map-reduce

 

Put the examples directory into HDFS.

 

Export OOZIE_URL

 

Issue this command to run the example:

 

oozie job -config examples/apps/map-reduce/job.properties -run


The first time I received the following error:

 

Error: E0501 : E0501: Could not perform authorization operation, Call From MY-VM-ALIAS/xxx.xx.xx.xxx to localhost:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused

I did a telnet localhost 8020 and a telnet localhost 8021 and both failed. However, a telnet MY-VM-ALIAS 8020 and a MY-VM-ALIAS 8021 worked fine.

 

So I edited the examples/apps/map-reduce/job.properties file and replaced localhost with MY-VM-ALIAS:

 

nameNode=hdfs://MY-VM-ALIAS:8020
jobTracker=MY-VM-ALIAS:8021
queueName=default
examplesRoot=examples

oozie.wf.application.path=${nameNode}/user/${user.name}/${examplesRoot}/apps/map-reduce
outputDir=map-reduce

 

And issuing the command to run the example:

 

oozie job -config examples/apps/map-reduce/job.properties -run

 produces the following error:

 

Error: E0501 : E0501: Could not perform authorization operation, User: oozie is not allowed to impersonate root

 If I issue:

 

sudo -u oozie oozie job -config examples/apps/map-reduce/job.properties -oozie "http://MY-VM-ALIAS:11000/oozie" -run

 I receive the following error:

 

Error: E0501 : E0501: Could not perform authorization operation, User: oozie is not allowed to impersonate oozie

 Google suggested I add this to my core-site.xml file:

 

<property
      <name>hadoop.proxyuser.oozie.hosts</name>                                  
      <value>*</value>
 </property>

 <property>
      <name>hadoop.proxyuser.oozie.groups</name>
      <value>*</value>
 </property>

 Which didn't accomplish anything.

 

Explorer
Posts: 16
Registered: ‎12-04-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

[ Edited ]

Ok, well after I restarted HDFS via:

for x in `cd /etc/init.d ; ls hadoop-hdfs-*` ; do sudo service $x restart ; done

The proxy settings that I added to core-site.xml appeared to have kicked in and I could then run the example.

However, when I go to MY-VM-ALIAS:11000/oozie, the job's status is KILLED immediately.

 

If I double click on the job,  and then double click on the action item with the name of fail, I can see that the error message is:

 

Map/Reduce failed, error message[rRuntimeException: Error in configuing object]

 

Clicking on the Job Log tab, I saw this:

 

Caused by: java.lang.IllegalArgumentException: Compression codec com.hadoop.compression.lzo.LzoCodec not found.
	at org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:134)
	at org.apache.hadoop.io.compress.CompressionCodecFactory.<init>(CompressionCodecFactory.java:174)
	at org.apache.hadoop.mapred.TextInputFormat.configure(TextInputFormat.java:38)
	... 29 more
Caused by: java.lang.ClassNotFoundException: Class com.hadoop.compression.lzo.LzoCodec not found
	at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1680)
	at org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:127)
	... 31 more

 Google suggested that I put the "hadoop-lzo.jar in /var/lib/oozie/ and [restart] Oozie."

 

So I issued (on my master node with the Oozie server):

 

find / -name hadoop-lzo.jar
cp /usr/lib/hadoop/lib/hadoop-lzo.jar /var/lib/oozie/
sudo service oozie restart

 and my job ran and succeeded!

Posts: 1,903
Kudos: 435
Solutions: 307
Registered: ‎07-31-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

Those entries in core-site.xml are the solution to the impersonation
error, but you'll need to ensure you've made the change on the
NameNode and JobTracker's core-site.xml and that you've restarted them
after the change. Has this been done as well?

P.s. If you use Cloudera Manager controlled cluster, this property is
pre-added for the out of box experience.

Explorer
Posts: 16
Registered: ‎12-04-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

[ Edited ]

I currently only have a three node cluster, so I have the JobTracker and NameNode on a single node (which I call "The Master Node"). Thank you for that fact, however, as I plan on attempting to manually install a larger cluster.

 

Would it be necessary to add to my core-site.xml's on my Slave Nodes as well?

 

I am practicing manual installations just to understand the inner workings, but when my company decides to move into production with our POCs I will definitely use Cloudera Manager.

 

Would you happen to know if there is a list of properties configured out of the box in Cloudera Manager that one has to look out for when doing manual installations?

 

Thank you Harsh J.

Posts: 1,903
Kudos: 435
Solutions: 307
Registered: ‎07-31-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

I'm afraid I don't have such a list handy, but the book Hadoop Operations by Eric Sammer (from O'Reilly) does cover all the things to watch out for (properties driven by hardware availability, cluster sizes, perf. requirements, etc.) when setting up a cluster.
Explorer
Posts: 16
Registered: ‎12-04-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

[ Edited ]

I have now installed a 5 node cluster with the following configuration:

 

Master 1: NameNode

Master 2: Secondary NameNode, JobTracker, HMaster, Hive MetaStore,

Slave 1: TaskTracker, DataNode, HRegionServer

Slave 2: TaskTracker, DataNode, HRegionServer

Slave 3: TaskTracker, DataNode, HRegionServer

 

I installed Ooize on my Master 2, along with a MySQL database, and ran the same steps.

 

For Master 1 (NameNode) and Master 2 (JobTracker), I added the following properties to the core-site.xml as before:

 

<property
      <name>hadoop.proxyuser.oozie.hosts</name>                                  
      <value>*</value>
 </property>

 <property>
      <name>hadoop.proxyuser.oozie.groups</name>
      <value>*</value>
 </property>

And restarted HDFS on both of the nodes.

 

Now, I can issue the oozie job ... command and from my bash it executes successfully with no errors. However, when I log into the Oozie Web Console, I am told that the job cannot successfully because "JA009: User: oozie is not allowed to impersonate root".

 

215-oozie-web-console-cannot-impersonate-root.png

 

 

Here are the logs:

 

2014-01-10 13:58:05,677  INFO ActionStartXCommand:539 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@:start:] Start action [0000003-140110133137421-oozie-oozi-W@:start:] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10]
2014-01-10 13:58:05,678  WARN ActionStartXCommand:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@:start:] [***0000003-140110133137421-oozie-oozi-W@:start:***]Action status=DONE
2014-01-10 13:58:05,678  WARN ActionStartXCommand:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@:start:] [***0000003-140110133137421-oozie-oozi-W@:start:***]Action updated in DB!
2014-01-10 13:58:05,791  INFO ActionStartXCommand:539 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Start action [0000003-140110133137421-oozie-oozi-W@mr-node] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10]
2014-01-10 13:58:06,083  WARN MapReduceActionExecutor:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] credentials is null for the action
2014-01-10 13:58:06,500  WARN ActionStartXCommand:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Error starting action [mr-node]. ErrorType [TRANSIENT], ErrorCode [JA009], Message [JA009: User: oozie is not allowed to impersonate root]
org.apache.oozie.action.ActionExecutorException: JA009: User: oozie is not allowed to impersonate root
    at org.apache.oozie.action.ActionExecutor.convertExceptionHelper(ActionExecutor.java:418)
    at org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:392)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:773)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.start(JavaActionExecutor.java:927)
    at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:211)
    at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:59)
    at org.apache.oozie.command.XCommand.call(XCommand.java:277)
    at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:326)
    at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:255)
    at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: oozie is not allowed to impersonate root
    at org.apache.hadoop.ipc.Client.call(Client.java:1238)
    at org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:225)
    at org.apache.hadoop.mapred.$Proxy30.getDelegationToken(Unknown Source)
    at org.apache.hadoop.mapred.JobClient.getDelegationToken(JobClient.java:2125)
    at org.apache.oozie.service.HadoopAccessorService.createJobClient(HadoopAccessorService.java:372)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.createJobClient(JavaActionExecutor.java:970)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:723)
    ... 10 more
2014-01-10 13:58:06,501  INFO ActionStartXCommand:539 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Next Retry, Attempt Number [1] in [60,000] milliseconds
2014-01-10 13:59:06,556  INFO ActionStartXCommand:539 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Start action [0000003-140110133137421-oozie-oozi-W@mr-node] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10]
2014-01-10 13:59:06,692  WARN MapReduceActionExecutor:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] credentials is null for the action
2014-01-10 13:59:07,028  WARN ActionStartXCommand:542 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Error starting action [mr-node]. ErrorType [TRANSIENT], ErrorCode [JA009], Message [JA009: User: oozie is not allowed to impersonate root]
org.apache.oozie.action.ActionExecutorException: JA009: User: oozie is not allowed to impersonate root
    at org.apache.oozie.action.ActionExecutor.convertExceptionHelper(ActionExecutor.java:418)
    at org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:392)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:773)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.start(JavaActionExecutor.java:927)
    at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:211)
    at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:59)
    at org.apache.oozie.command.XCommand.call(XCommand.java:277)
    at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: oozie is not allowed to impersonate root
    at org.apache.hadoop.ipc.Client.call(Client.java:1238)
    at org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:225)
    at org.apache.hadoop.mapred.$Proxy30.getDelegationToken(Unknown Source)
    at org.apache.hadoop.mapred.JobClient.getDelegationToken(JobClient.java:2125)
    at org.apache.oozie.service.HadoopAccessorService.createJobClient(HadoopAccessorService.java:372)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.createJobClient(JavaActionExecutor.java:970)
    at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:723)
    ... 8 more
2014-01-10 13:59:07,029  INFO ActionStartXCommand:539 - USER[root] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000003-140110133137421-oozie-oozi-W] ACTION[0000003-140110133137421-oozie-oozi-W@mr-node] Next Retry, Attempt Number [2] in [60,000] milliseconds

 

Any ideas?

 

Thank you.

Cloudera Employee
Posts: 98
Registered: ‎07-31-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root


When you added the hadoop.proxyuser.oozie.* values, did you restart MapReduce and HBase?  They have to be restarted to notice that change.  Also, are you using CM?  It doesn't look like it, but I wanted to confirm because that would change things.

 

Thanks

Chris

Explorer
Posts: 16
Registered: ‎12-04-2013

Re: Oozie-Error: E0501: User: oozie is not allowed to impersonate root

Ok great. I restarted all MapReduce and Hbase daemons in addition to the HDFS daemons and it is working properly now. Thank you!

 

Previously I had only restarted HDFS.