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MapReduce >> mail # user >> Re: reg max map task config


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Re: reg max map task config
Hi Harsh,

Is there a recommanded way to configure this value? I think I read
something like 0.7 x cores but I'm not 100% sure...

JM

2013/1/28, Manoj Babu <[EMAIL PROTECTED]>:
> Thank you Harsh.
>
> Cheers!
> Manoj.
>
>
> On Mon, Jan 28, 2013 at 10:50 AM, Harsh J <[EMAIL PROTECTED]> wrote:
>
>> Hi,
>>
>> As noted on
>> http://hadoop.apache.org/docs/stable/cluster_setup.html#Configuring+the+Hadoop+Daemons
>> ,
>> and by its own name, the config 'mapred.tasktracker.map.tasks.maximum'
>> applies to a TaskTracker daemon and therefore needs to be applied to
>> its local mapred-site.xml and has to be restarted to take new values
>> into effect.
>>
>> On Mon, Jan 28, 2013 at 10:36 AM, Manoj Babu <[EMAIL PROTECTED]> wrote:
>> > Hi All,
>> >
>> > I am trying to override the value of
>> mapred.tasktracker.map.tasks.maximum in
>> > mapred-site.xml through my job configuration object will it reflect in
>> the
>> > corresponding task trackers?
>> > or do i have to change it in mapred-site.xml following a restart for
>> > the
>> > changes to apply?
>> >
>> > Thanks in advance.
>> >
>> > Cheers!
>> > Manoj.
>>
>>
>>
>> --
>> Harsh J
>>
>
+
Harsh J 2013-01-28, 16:23