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From Arun C Murthy <...@hortonworks.com>
Subject Re: mapred.child.ulimit in MR2
Date Sat, 22 Jun 2013 23:37:27 GMT
Actually, ulimit never worked correctly - we should probably not bother?

On Jun 21, 2013, at 4:47 PM, Sandy Ryza <sandy.ryza@cloudera.com> wrote:

> Thanks Bobby,
> 
> I filed MAPREDUCE-5338 for it.
> 
> -Sandy
> 
> 
> On Wed, Jun 19, 2013 at 8:16 AM, Robert Evans <evans@yahoo-inc.com> wrote:
> 
>> Sandy,
>> 
>> I think it was something that was missed in the port to YARN and the dead
>> code was cleaned up as part of HADOOP-8288.
>> 
>> If you have a use case for it or are worried about backwards compatibility
>> we can add it back in.  It is not that hard, all it did was add 'ulimt -v
>> <number>' to the shell script that launched the task, except on windows.
>> 
>> --Bobby
>> 
>> On 6/18/13 3:56 PM, "Sandy Ryza" <sandy.ryza@cloudera.com> wrote:
>> 
>>> Hi yarn-dev/mapreduce-dev,
>>> 
>>> Is there a reason that mapred.child.ulimit no longer has an effect in MR2?
>>> Should it be added back in?
>>> 
>>> thanks for any help,
>>> -Sandy
>> 
>> 

--
Arun C. Murthy
Hortonworks Inc.
http://hortonworks.com/



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