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Date: Fri, 22 Jun 2012 19:19:50 +0800
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Subject: Re: Error starting MRAppMaster
From: gemini alex <gemini5201314@gmail.com>
To: common-user@hadoop.apache.org
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the capacityscheduler jar in share/hadoop/mapreduce/*resourcemanager*.jar
already has a default capacity-default.xml in it. I think maybe this   is a
packaging issue.

2012/6/22 Prajakta Kalmegh <pkalmegh@gmail.com>

> Hi Vinod
>
> I am actually using the 'mvn package -Pdist -DskipTests -Dtar' command as
> described in the BUILDING.txt file after cloning Hadoop. Then I am using
> the eclipse goal with mvn to set it up for eclipse as described in <
> http://wiki.apache.org/hadoop/EclipseEnvironment> page. To setup YARN, I
> am
> following instructions in <
>
> http://hadoop.apache.org/common/docs/r2.0.0-alpha/hadoop-yarn/hadoop-yarn-site/SingleCluster.html
> >.
>
> Finally setting up the env variables and starting the
> namenode/datanode/resourcemanager/nodemanager and historyserver using
> appropriate daemons.
>
> I just saw the below mentioned JIRA and tried commenting out the code for
> CapacityScheduler. Since this worked, I thought it might be an issue with
> using CapacityScheduler. Any idea on the root cause?
>
> Even now, if I add the property in my yarn-site.xml, the job hangs or gives
> the below error. I am new to Hadoop (used it before but never setup for
> making changes to it) so not sure if I am doing something wrong in
> building/setting it up.
>
> Regards,
> Prajakta
>
> On Fri, Jun 22, 2012 at 2:36 AM, Vinod Kumar Vavilapalli <
> vinodkv@hortonworks.com> wrote:
>
> >
> > This has got nothing to do with the scheduler.
> >
> > I believe this has got to do with some compilation issue. How did you
> > build hadoop?
> >
> > Also, I found that the repo at github (which is a mirror of git repo at
> > apache) doesn't always pick all the commits immediately. You are better
> off
> > checking out from svn (
> > http://hadoop.apache.org/common/version_control.html)
> >
> > HTH,
> > +Vinod
> >
> >
> > On Jun 21, 2012, at 9:34 AM, Prajakta Kalmegh wrote:
> >
> > > Okay, the below problem was fixed after commenting out the property to
> > use
> > > CapacityScheduler from my yarn-site.xml. I found a reference to this in
> > > this JIRA <https://issues.apache.org/jira/browse/MAPREDUCE-4339>. YARN
> > now
> > > uses the default FIFO scheduler.
> > >
> > > Is the Dispatcher used in the CapacityScheduler's (or any scheduler's)
> > > flow?
> > >
> > > Thanks in advance.
> > > Regards,
> > > Prajakta
> > >
> > >
> > >
> > >
> > >
> > > On Thu, Jun 21, 2012 at 10:53 AM, Prajakta Kalmegh <pkalmegh@gmail.com
> > >wrote:
> > >
> > >> Hi Jagat
> > >>
> > >> Thanks for your reply. I am not using Pig. I have the latest hadoop
> > >> running cloned from github trunk. Actually I was able to execute my
> > >> programs until I refreshed my github foked copy yesterday and ran a
> > build
> > >> on it.  :(
> > >>
> > >> I figured out from a debug that the lines that are creating a problem
> > are:
> > >> ----------------
> > >>   //service to log job history events
> > >>    EventHandler<JobHistoryEvent> historyService =
> > >>        createJobHistoryHandler(context);
> > >>
> > >>
> >
> dispatcher.register(org.apache.hadoop.mapreduce.jobhistory.EventType.class,
> > >>        historyService);
> > >> ----------------
> > >> in the MRAppMaster.java class. The reason being the register method
> > >> from org.apache.hadoop.yarn.event.Dispatcher is not
> > >> accepting EventHandler<JobHistoryEvent> as the second argument. Not
> sure
> > >> why.
> > >>
> > >> Regards,
> > >> Prajakta
> > >>
> > >>
> > >>
> > >> On Thu, Jun 21, 2012 at 10:22 AM, Jagat Singh <jagatsingh@gmail.com
> > >wrote:
> > >>
> > >>> Seems you are using Pig with Hadoop 0.23 or 2.0 version.
> > >>>
> > >>> Can you quickly recompile pig with 23 option and try this again.
> > >>>
> > >>>
> > >>>
> > >>> On Thu, Jun 21, 2012 at 10:02 AM, Prajakta Kalmegh <
> pkalmegh@gmail.com
> > >>>> wrote:
> > >>>
> > >>>> Hi
> > >>>>
> > >>>> I am getting the following error while trying to execute any example
> > >>>> (wordcount, terasort etc):
> > >>>> 12/06/21 09:52:39 INFO mapreduce.Job: Running job:
> > >>> job_1340251923324_0001
> > >>>> 12/06/21 09:52:45 INFO mapreduce.Job: Job job_1340251923324_0001
> > >>> running in
> > >>>> uber mode : false
> > >>>> 12/06/21 09:52:45 INFO mapreduce.Job:  map 0% reduce 0%
> > >>>> 12/06/21 09:52:45 INFO mapreduce.Job: Job job_1340251923324_0001
> > failed
> > >>>> with state FAILED due to: Application application_1340251923324_0001
> > >>> failed
> > >>>> 1 times due to AM Container for appattempt_1340251923324_0001_000001
> > >>> exited
> > >>>> with  exitCode: 1 due to:
> > >>>> .Failing this attempt.. Failing the application.
> > >>>> 12/06/21 09:52:45 INFO mapreduce.Job: Counters: 0
> > >>>> -----------------------------
> > >>>>
> > >>>> *The contents of containers logs are pasted below:*
> > >>>> 2012-06-21 09:52:43,856 INFO [main]
> > >>>> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Created MRAppMaster
> > for
> > >>>> application appattempt_1340251923324_0001_000001
> > >>>> 2012-06-21 09:52:44,625 FATAL [main]
> > >>>> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Error starting
> > >>> MRAppMaster
> > >>>> java.lang.Error: Unresolved compilation problems:
> > >>>> The method register(Class<? extends Enum>, EventHandler) in the type
> > >>>> Dispatcher is not applicable for the arguments (Class<EventType>,
> > >>>> EventHandler<JobHistoryEvent>)
> > >>>> org.apache.hadoop.mapreduce.jobhistory.EventType cannot be resolved
> to
> > >>> a
> > >>>> type
> > >>>>
> > >>>> at
> > >>>>
> > >>>
> > org.apache.hadoop.mapreduce.v2.app.MRAppMaster.init(MRAppMaster.java:261)
> > >>>> at
> > >>>>
> > >>>
> >
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster$1.run(MRAppMaster.java:1049)
> > >>>> 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:1232)
> > >>>> at
> > >>>>
> > >>>>
> > >>>
> >
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.initAndStartAppMaster(MRAppMaster.java:1046)
> > >>>> at
> > >>>>
> > >>>
> >
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.main(MRAppMaster.java:1010)
> > >>>> 2012-06-21 09:52:44,628 INFO [Thread-0]
> > >>>> org.apache.hadoop.mapreduce.v2.app.MRAppMaster: MRAppMaster
> received a
> > >>>> signal. Signaling RMCommunicator and JobHistoryEventHandler.
> > >>>>
> > >>>> ----------------------
> > >>>>
> > >>>> Any idea what would be going wrong?
> > >>>>
> > >>>> Regards,
> > >>>> Prajakta
> > >>>>
> > >>>
> > >>
> > >>
> >
> >
>

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