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From "Vinod Kone (JIRA)" <>
Subject [jira] [Commented] (MESOS-206) Long-running jobs on Hadoop framework do not run to completion
Date Fri, 27 Jul 2012 17:29:34 GMT


Vinod Kone commented on MESOS-206:

Can you try with the latest mesos. We have had some fixes in recently that dealt with improper
allocation of resources.
> Long-running jobs on Hadoop framework do not run to completion
> --------------------------------------------------------------
>                 Key: MESOS-206
>                 URL:
>             Project: Mesos
>          Issue Type: Bug
>          Components: framework
>            Reporter: Jessica J
>            Priority: Blocker
> When I run the MPI and Hadoop frameworks simultaneously with long-running jobs, the Hadoop
jobs fail to complete. The MPI job, which is shorter, completes normally, and the Hadoop framework
continues for a while, but eventually, although it appears to still be running, it stops making
progress on the jobs. The jobtracker keeps running, but each line of output indicates no map
or reduce tasks are actually being executed:
> 12/06/08 10:55:41 INFO mapred.FrameworkScheduler: Assigning tasks for [slavehost] with
0 map slots and 0 reduce slots
> I've examined the master's log and noticed this:
> I0608 10:40:43.106740  6317 master.cpp:681] Deactivating framework 201206080825-36284608-5050-6311-0000
as requested by scheduler(1)@[my-ip]:59317
> The framework ID is that of the Hadoop framework. This message is followed by messages
indicating the slaves "couldn't lookup task [#]" and "couldn't lookup framework 201206080825-36284608-5050-6311-0000."
> I thought the first time that this error was a fluke since it does not happen with shorter
running jobs or with the Hadoop framework running independently (i.e., no MPI), but I have
now consistently reproduced it 4 times.
> UPDATE: I just had the same issue occur when running Hadoop + Mesos without the MPI framework
running simultaneously.

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