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From " (Commented) (JIRA)" <>
Subject [jira] [Commented] (MESOS-183) Included MPI Framework Fails to Start
Date Fri, 20 Apr 2012 08:18:43 GMT

] commented on MESOS-183:

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(Updated 2012-04-20 08:17:57.362659)

Review request for mesos, Benjamin Hindman and Charles Reiss.


Added optional --name, --path for directory of mpich2 binaries, and --ifhn tags. 


Some updates to point out:
  -> '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.
  -> 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. 
  -> killtask() stops the mpd associated with the given tid. 
  -> Task states update nicely now. They correspond to the state of a task's associated
mpd process.
  -> Included additional info on how to setup and run MPICH2 1.2 and nmpiexec on OS X and

This addresses bug MESOS-183.

Diffs (updated)

  frameworks/mpi/README.txt cdb4553 
  frameworks/mpi/ a5db9c0 
  frameworks/mpi/ 8eeba5e 





> Included MPI Framework Fails to Start
> -------------------------------------
>                 Key: MESOS-183
>                 URL:
>             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
build and python 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 "./", line 2, in <module>
>     import mesos
>   File "/usr/lib64/python2.6/site-packages/mesos-0.9.0-py2.6-linux-x86_64.egg/",
line 22, in <module>
>     import _mesos
>   File "/usr/lib64/python2.6/site-packages/mesos-0.9.0-py2.6-linux-x86_64.egg/",
line 1286, in <module>
>     DESCRIPTOR.message_types_by_name['FrameworkID'] = _FRAMEWORKID
> AttributeError: 'FileDescriptor' object has no attribute 'message_types_by_name'
> I've examined and determined that the version of protobuf it includes (2.4.1)
does, indeed, contain a FileDescriptor class in 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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