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From achilles852 <faheemk...@gmail.com>
Subject Re: last map task taking too long
Date Wed, 30 Sep 2009 01:07:59 GMT

Basically, it finishes what it is supposed to do (I view the logs to find
out), but does not move onto the reduce stage.


Ted Dunning wrote:
> 
> Is that last map task actually running, or is it pending?
> 
> On Tue, Sep 29, 2009 at 5:57 PM, achilles852 <faheemkhan@gmail.com> wrote:
> 
>>
>> Hey.. I am trying to write a small mapreduce program. I launch a few map
>> tasks, each of which should complete within a certain time (say 5
>> minutes)... all the tasks complete within 5 minutes except the last one -
>> which takes around 10 times more the time taken by all other map
>> tasks.....any idea why this is happening?
>>
>> I am using Hadoop version 0.19.2, tried running it locally as well as on
>> EC2.
>> --
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>> Sent from the Hadoop core-dev mailing list archive at Nabble.com.
>>
>>
> 
> 
> -- 
> Ted Dunning, CTO
> DeepDyve
> 
> 

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