Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> property  mapred.tasktracker.map.tasks.maximum


Copy link to this message
-
Re: property mapred.tasktracker.map.tasks.maximum
Anil is correct:

mapred.tasktracker.{map,reduce}.tasks.maximum == TaskTracker Service
Property. Applies via mapred-site.xml at each TT.

mapred.child.java.opts == Per-Job Overridable Property. Applies via
mapred-site.xml at each client, or via code (JobConf, Job, etc.).

On Thu, Nov 1, 2012 at 3:53 AM, anil gupta <[EMAIL PROTECTED]> wrote:
> Hi Andy,
>
> This property is related to MR so it has got nothing to do with NN. You need
> to put it on each TT.
>
> HTH,
> Anil
>
> On Wed, Oct 31, 2012 at 2:05 PM, Kartashov, Andy <[EMAIL PROTECTED]>
> wrote:
>>
>> Guys,
>>
>> Do you set the above property once on the master NN  in in mapred-site.xml
>> or on each DN/TTs.
>>
>> Similarly, what about property: mapred.child.java.opts. Once on NN or each
>> and every DN/TaskTrackers?
>> NOTICE: This e-mail message and any attachments are confidential, subject
>> to copyright and may be privileged. Any unauthorized use, copying or
>> disclosure is prohibited. If you are not the intended recipient, please
>> delete and contact the sender immediately. Please consider the environment
>> before printing this e-mail. AVIS : le présent courriel et toute pièce
>> jointe qui l'accompagne sont confidentiels, protégés par le droit d'auteur
>> et peuvent être couverts par le secret professionnel. Toute utilisation,
>> copie ou divulgation non autorisée est interdite. Si vous n'êtes pas le
>> destinataire prévu de ce courriel, supprimez-le et contactez immédiatement
>> l'expéditeur. Veuillez penser à l'environnement avant d'imprimer le présent
>> courriel
>
>
>
>
> --
> Thanks & Regards,
> Anil Gupta

--
Harsh J
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB