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From fab wol <darkwoll...@gmail.com>
Subject Re: Job initialization failed: java.lang.NullPointerException at resolveAndAddToTopology
Date Mon, 14 Oct 2013 08:33:54 GMT
this looks like it belongs to my problem, right?

https://issues.apache.org/jira/browse/MAPREDUCE-50

Cheers
Wolli


2013/10/11 DSuiter RDX <dsuiter@rdx.com>

> It looks like you are correct, and I did not have the right solution, I
> apologize. I'm not sure if the other nodes need to be involved either. Now
> I'm hoping someone with deeper knowledge will step in, because I'm curious
> also! Some of the most knowledgeable people on here are on US Pacific Time,
> so you will probably get more responses in a few hours. Sorry I couldn't be
> of more assistance.
>
> Sincerely,
> *Devin Suiter*
> Jr. Data Solutions Software Engineer
> 100 Sandusky Street | 2nd Floor | Pittsburgh, PA 15212
> Google Voice: 412-256-8556 | www.rdx.com
>
>
> On Fri, Oct 11, 2013 at 8:52 AM, fab wol <darkwolli32@gmail.com> wrote:
>
>> this line:
>>
>> 2013-10-11 10:24:53,033 ERROR org.apache.hadoop.security.UserGroupInformation:
>> PriviledgedActionException as:mapred (auth:SIMPLE)
>> cause:java.io.IOException: java.lang.NullPointerException
>>
>> is imho indicating that i am using the user "mapred" for executing (fyi:
>> submitting the job from the CLI (  hadoop jar
>> /opt/cloudera/parcels/CDH/lib/hadoop-0.20-mapreduce/hadoop-examples.jar
>> wordcount hdfs_input_path hdfs_output_path) from another node) ... the file
>> permissions for this file are:
>>
>> -rwxr-x--x  1 mapred hadoop 1382 Oct 10 15:02 topology.py*
>>
>> i temporarly had set the permissions to 777 to see if something changes,
>> but it didn't ... I checked only the jobtracker, are the other nodes
>> important for this as well?
>>
>> thx already in advance, especially for the quick response!
>> Wolli
>>
>>
>> 2013/10/11 DSuiter RDX <dsuiter@rdx.com>
>>
>>> The user running the job (might not be your username depending on your
>>> setup) does not appear to have executable permissions on the jobtracker
>>> cluster topology python script - I'm basing this on the lines:
>>>
>>> 2013-10-11 10:24:53,035 WARN org.apache.hadoop.net.ScriptBasedMapping:
>>> Exception running
>>> /run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER/topology.py
>>> 10.160.25.249
>>> java.io.IOException: Cannot run program
>>> "/run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER/topology.py" (in
>>> directory "/run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER"):
>>> java.io.IOException: error=13, Permission denied
>>>
>>> So checking on the permissions for that file, determining what user is
>>> kicking off your job, which depends on how you submit it, and making sure
>>> that user has the execute permission on that file will probably fix this.
>>>
>>> If you are using a management console, such as Cloudera SCM, when you
>>> submit jobs, they are run as an application user, so, Flume services run
>>> under the "Flume" user, HBase jobs will typically run under the HBase user,
>>> and so on. It can cause some surprises if you do not expect it.
>>>
>>> *Devin Suiter*
>>> Jr. Data Solutions Software Engineer
>>> 100 Sandusky Street | 2nd Floor | Pittsburgh, PA 15212
>>> Google Voice: 412-256-8556 | www.rdx.com
>>>
>>>
>>> On Fri, Oct 11, 2013 at 7:59 AM, fab wol <darkwolli32@gmail.com> wrote:
>>>
>>>> Hey everyone, I've got supplied with a decent ten node CDH 4.4
>>>> cluster, only 7 days old, and someone tried some HBase stuff on it. Now I
>>>> wanted to try some MR Stuff on it, but starting a Job is already not
>>>> possible (even the wordcount example). The error log of the jobtracker
>>>> produces a log 700k lines long but it consists mainly of these lines
>>>> repeatedly:
>>>>
>>>> 2013-10-11 10:24:53,033 INFO org.apache.hadoop.mapred.JobTracker: Lost
>>>> tracker 'tracker_z-asanode02:localhost/127.0.0.1:53712'
>>>> 2013-10-11 10:24:53,033 ERROR
>>>> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
>>>> as:mapred (auth:SIMPLE) cause:java.io.IOException:
>>>> java.lang.NullPointerException
>>>> 2013-10-11 10:24:53,034 INFO org.apache.hadoop.ipc.Server: IPC Server
>>>> handler 22 on 8021, call
>>>> heartbeat(org.apache.hadoop.mapred.TaskTrackerStatus@13b31acd, true,
>>>> true, true, -1), rpc version=2, client version=32,
>>>> methodsFingerPrint=-159967141 from 10.160.25.250:44389: error:
>>>> java.io.IOException: java.lang.NullPointerException
>>>> java.io.IOException: java.lang.NullPointerException
>>>> at
>>>> org.apache.hadoop.mapred.JobTracker.resolveAndAddToTopology(JobTracker.java:2751)
>>>>  at
>>>> org.apache.hadoop.mapred.JobTracker.addNewTracker(JobTracker.java:2731)
>>>>  at
>>>> org.apache.hadoop.mapred.JobTracker.processHeartbeat(JobTracker.java:3227)
>>>> at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:2931)
>>>>  at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>>>>  at
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>> at java.lang.reflect.Method.invoke(Method.java:597)
>>>>  at
>>>> org.apache.hadoop.ipc.WritableRpcEngine$Server$WritableRpcInvoker.call(WritableRpcEngine.java:474)
>>>>  at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
>>>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1751)
>>>>  at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1747)
>>>>  at java.security.AccessController.doPrivileged(Native Method)
>>>> at javax.security.auth.Subject.doAs(Subject.java:396)
>>>>  at
>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
>>>>  at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1745)
>>>> 2013-10-11 10:24:53,035 WARN org.apache.hadoop.net.ScriptBasedMapping:
>>>> Exception running
>>>> /run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER/topology.py
>>>> 10.160.25.249
>>>> java.io.IOException: Cannot run program
>>>> "/run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER/topology.py" (in
>>>> directory "/run/cloudera-scm-agent/process/556-mapreduce-JOBTRACKER"):
>>>> java.io.IOException: error=13, Permission denied
>>>>  at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
>>>>  at org.apache.hadoop.util.Shell.runCommand(Shell.java:206)
>>>> at org.apache.hadoop.util.Shell.run(Shell.java:188)
>>>>  at
>>>> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:381)
>>>>  at
>>>> org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.runResolveCommand(ScriptBasedMapping.java:242)
>>>>  at
>>>> org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.resolve(ScriptBasedMapping.java:180)
>>>> at
>>>> org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:119)
>>>>  at
>>>> org.apache.hadoop.mapred.JobTracker.resolveAndAddToTopology(JobTracker.java:2750)
>>>>  at
>>>> org.apache.hadoop.mapred.JobTracker.addNewTracker(JobTracker.java:2731)
>>>> at
>>>> org.apache.hadoop.mapred.JobTracker.processHeartbeat(JobTracker.java:3227)
>>>>  at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:2931)
>>>>  at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>>>> at
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>  at java.lang.reflect.Method.invoke(Method.java:597)
>>>> at
>>>> org.apache.hadoop.ipc.WritableRpcEngine$Server$WritableRpcInvoker.call(WritableRpcEngine.java:474)
>>>>  at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
>>>>  at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1751)
>>>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1747)
>>>>  at java.security.AccessController.doPrivileged(Native Method)
>>>>  at javax.security.auth.Subject.doAs(Subject.java:396)
>>>> at
>>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
>>>>  at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1745)
>>>> Caused by: java.io.IOException: java.io.IOException: error=13,
>>>> Permission denied
>>>> at java.lang.UNIXProcess.<init>(UNIXProcess.java:148)
>>>>  at java.lang.ProcessImpl.start(ProcessImpl.java:65)
>>>> at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
>>>>  ... 21 more
>>>>
>>>> it doesn't matter if it is a pure hadoop job or a oozie submitted job.
>>>> there seems to be something wrong in the basic configuration. Anyone an
>>>> idea?
>>>>
>>>> Cheers
>>>> Wolli
>>>>
>>>
>>>
>>
>

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