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hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java
<https://reviews.apache.org/r/11161/#comment44296>

    I understand that they can't share ports, but the non-intuitive thing is 
why the Mesos master reserving the port (as part of the resources of pending 
offer or the running Mesos task) is not enough.
    
    Because the Mesos master should be tracking port assignments, I'd guess the 
problem only come up from Mesos thinking a task tracker has gone away but the 
Hadoop scheduler not yet knowing that.


- Charles Reiss


On June 3, 2013, 5:59 p.m., Brenden Matthews wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/11161/
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> 
> (Updated June 3, 2013, 5:59 p.m.)
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> 
> Review request for mesos.
> 
> 
> Description
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> Don't accept offers on the same host/port.
> 
> We'll try to find a port combination that hasn't already been used to
> launch a TaskTracker.
> 
> Review: https://reviews.apache.org/r/11161/
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> 
> Diffs
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> 
>   hadoop/mesos/src/java/org/apache/hadoop/mapred/MesosScheduler.java 
> afe401f5265e3d9494af7eace42eec45943184a3 
> 
> Diff: https://reviews.apache.org/r/11161/diff/
> 
> 
> Testing
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> Used in production at airbnb.
> 
> 
> Thanks,
> 
> Brenden Matthews
> 
>

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