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Date: Tue, 8 May 2012 03:41:12 +0000 (UTC)
From: "jiraposter@reviews.apache.org (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (MESOS-183) Included MPI Framework Fails to
 Start
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    [ https://issues.apache.org/jira/browse/MESOS-183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270162#comment-13270162 ] 

jiraposter@reviews.apache.org commented on MESOS-183:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/4768/#review7666
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Ship it!


I'll get this checked in provided Jessica gives it a "Ship It". Thanks the the good work here, I intend to make it a demonstration of how to write frameworks on Mesos!

- Benjamin


On 2012-05-08 01:29:06, Harvey Feng wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/4768/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2012-05-08 01:29:06)
bq.  
bq.  
bq.  Review request for mesos, Benjamin Hindman, Charles Reiss, and Jessica.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Some updates to point out:
bq.  
bq.  -nmpiexec.py
bq.    -> 'mpdallexit' should terminate all slaves' mpds in the ring. I moved 'driver.stop()' to statusUpdate() so that it stops when all tasks have been finished, which occurs when the executor's launched mpd processes have all exited. 
bq.  -startmpd.py
bq.    -> Didn't remove cleanup(), and added code in shutdown() that manually kills mpd processes. They might be useful during abnormal (cleanup) and normal (shutdown) framework/executor termination...I think. cleanup() still terminates all mpd's in the slave, but shutdown doesn't. 
bq.    -> killtask() stops the mpd associated with the given tid. 
bq.    -> Task states update nicely now. They correspond to the state of a task's associated mpd process.
bq.  -Readme
bq.    -> Included additional info on how to setup and run MPICH2 1.2 and nmpiexec on OS X and Ubuntu/Linux
bq.  
bq.  
bq.  This addresses bug MESOS-183.
bq.      https://issues.apache.org/jira/browse/MESOS-183
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    frameworks/mpi/README.txt cdb4553 
bq.    frameworks/mpi/nmpiexec 517bdbc 
bq.    frameworks/mpi/nmpiexec.py a5db9c0 
bq.    frameworks/mpi/startmpd.py 8eeba5e 
bq.    frameworks/mpi/startmpd.sh 44faa05 
bq.  
bq.  Diff: https://reviews.apache.org/r/4768/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Harvey
bq.  
bq.


> Included MPI Framework Fails to Start
> -------------------------------------
>
>                 Key: MESOS-183
>                 URL: https://issues.apache.org/jira/browse/MESOS-183
>             Project: Mesos
>          Issue Type: Bug
>          Components: documentation, framework
>         Environment: Scientific Linux Cluster
>            Reporter: Jessica J
>            Assignee: Harvey Feng 
>            Priority: Blocker
>              Labels: documentation, mpi, setup
>
> There are really two facets to this issue. The first is that no good documentation exists for setting up and using the included MPI framework. The second, and more important issue, is that the framework will not run. The second issue is possibly related to the first in that I may not be setting it up properly. 
> To test the MPI framework, by trial and error I determined I needed to run python setup.py build and python setup.py install in the MESOS-HOME/src/python directory. Now when I try to run nmpiexec -h, I get an AttributeError, below: 
> Traceback (most recent call last):
>   File "./nmpiexec.py", line 2, in <module>
>     import mesos
>   File "/usr/lib64/python2.6/site-packages/mesos-0.9.0-py2.6-linux-x86_64.egg/mesos.py", line 22, in <module>
>     import _mesos
>   File "/usr/lib64/python2.6/site-packages/mesos-0.9.0-py2.6-linux-x86_64.egg/mesos_pb2.py", line 1286, in <module>
>     DESCRIPTOR.message_types_by_name['FrameworkID'] = _FRAMEWORKID
> AttributeError: 'FileDescriptor' object has no attribute 'message_types_by_name'
> I've examined setup.py and determined that the version of protobuf it includes (2.4.1) does, indeed, contain a FileDescriptor class in descriptor.py that sets self.message_types_by_name, so I'm not sure what the issue is. Is this a bug? Or is there a step I'm missing? Do I need to also build/install protobuf?

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