hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From jerrro <jer...@gmail.com>
Subject Re: failed map tasks
Date Thu, 03 Jul 2008 14:56:15 GMT

I am actually more interested in _theoretically_ what could happen to a map
tasks to fail or to take longer...
Don't have a specific case. Thanks, Jerr


Amar Kamat wrote:
> 
> jerrro wrote:
>> Hello,
>>
>> I was wondering - could someone tell me what are the reasons that I could
>> get failure with certain map tasks on a node? 
> Well, that depends on the kind of errors you are seeing. Could you plz 
> post the logs/error messages?
> Amar
>> Any idea that comes to mind
>> would work (it does not happen because my program aborts).
>> Also, what could cause with hadoop for a map task to take longer
>> (although
>> data is the same for all maps) to finish than the other tasks?
>>   
> What Hadoop version are you using? What is the average runtime of the 
> maps? How much difference are you seeing? Are all the nodes same in 
> terms of config?
>> Thanks
>>
>>
>> Jerr
>>
>>   
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/failed-map-tasks-tp18251144p18260183.html
Sent from the Hadoop core-user mailing list archive at Nabble.com.


Mime
View raw message