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From Ted Dunning <tdunn...@veoh.com>
Subject Re: Backup Tasks in Hadoop MapReduce.
Date Wed, 16 Apr 2008 18:01:00 GMT

I believe that this is turned on by default (at least in 15).


On 4/16/08 10:57 AM, "Milind Bhandarkar" <milindb@yahoo-inc.com> wrote:

> Yes. In hadoop, you can enable "backup" tasks by setting
> mapred.speculative.execution to true.
> 
> - milind
> 
> 
> On 4/16/08 8:07 AM, "Chaman Singh Verma" <csv610@yahoo.com> wrote:
> 
>> 
>> 
>> Hello,
>> 
>> I am curious to know whether Hadoop MapReduce has the feature of "Backup
>> Tasks" as described in the
>> seminal paper "MapReduce:Simplified Data Processing in Large Cluster" ( Dean
>> and Ghemawat ).
>> 
>> Any implementation detail will be extremely valuable.
>> 
>> Thanks.
>> 
>> With Regards.
>> Chaman Singh Verma
>> Poona,India
>> 
>> -----
>> Chaman Singh Verma
>> Poona, India
>> --
>> View this message in context:
>> 
http://www.nabble.com/Backup-Tasks-in-Hadoop-MapReduce.-tp16722539p16722539.h>>
t
>> ml
>> Sent from the Hadoop core-user mailing list archive at Nabble.com.
>> 
> 
> - Milind


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