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Posted to mapreduce-user@hadoop.apache.org by gortiz <go...@pragsis.com> on 2014/10/08 17:15:55 UTC
How to know the number of nodes?
I would like to know the number of nodes my cluster has. Is it possible
in YARN and MapReduce from Java?
I suppose that you have installed a TaskTracker in any node.
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Re: How to know the number of nodes?
Posted by Ravi <rt...@gmail.com>.
Yes, There is Cluster Nodes API.
http://hadoop.apache.org/docs/r2.4.1/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html#Cluster_Nodes_API
Best,
Ravi
On Oct 8, 2014, at 8:15 AM, gortiz <go...@pragsis.com> wrote:
> I would like to know the number of nodes my cluster has. Is it possible in YARN and MapReduce from Java?
>
> I suppose that you have installed a TaskTracker in any node.
> AVISO CONFIDENCIAL\nEste correo y la información contenida o adjunta al mismo es privada y confidencial y va dirigida exclusivamente a su destinatario. Pragsis informa a quien pueda haber recibido este correo por error que contiene información confidencial cuyo uso, copia, reproducción o distribución está expresamente prohibida. Si no es Vd. el destinatario del mismo y recibe este correo por error, le rogamos lo ponga en conocimiento del emisor y proceda a su eliminación sin copiarlo, imprimirlo o utilizarlo de ningún modo.\nCONFIDENTIALITY WARNING.\nThis message and the information contained in or attached to it are private and confidential and intended exclusively for the addressee. Pragsis informs to whom it may receive it in error that it contains privileged information and its use, copy, reproduction or distribution is prohibited. If you are not an intended recipient of this E-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, reta
> in or redistribute any portion of this E-mail.
Re: How to know the number of nodes?
Posted by Ravi <rt...@gmail.com>.
Yes, There is Cluster Nodes API.
http://hadoop.apache.org/docs/r2.4.1/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html#Cluster_Nodes_API
Best,
Ravi
On Oct 8, 2014, at 8:15 AM, gortiz <go...@pragsis.com> wrote:
> I would like to know the number of nodes my cluster has. Is it possible in YARN and MapReduce from Java?
>
> I suppose that you have installed a TaskTracker in any node.
> AVISO CONFIDENCIAL\nEste correo y la información contenida o adjunta al mismo es privada y confidencial y va dirigida exclusivamente a su destinatario. Pragsis informa a quien pueda haber recibido este correo por error que contiene información confidencial cuyo uso, copia, reproducción o distribución está expresamente prohibida. Si no es Vd. el destinatario del mismo y recibe este correo por error, le rogamos lo ponga en conocimiento del emisor y proceda a su eliminación sin copiarlo, imprimirlo o utilizarlo de ningún modo.\nCONFIDENTIALITY WARNING.\nThis message and the information contained in or attached to it are private and confidential and intended exclusively for the addressee. Pragsis informs to whom it may receive it in error that it contains privileged information and its use, copy, reproduction or distribution is prohibited. If you are not an intended recipient of this E-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, reta
> in or redistribute any portion of this E-mail.
Re: How to know the number of nodes?
Posted by Ravi <rt...@gmail.com>.
Yes, There is Cluster Nodes API.
http://hadoop.apache.org/docs/r2.4.1/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html#Cluster_Nodes_API
Best,
Ravi
On Oct 8, 2014, at 8:15 AM, gortiz <go...@pragsis.com> wrote:
> I would like to know the number of nodes my cluster has. Is it possible in YARN and MapReduce from Java?
>
> I suppose that you have installed a TaskTracker in any node.
> AVISO CONFIDENCIAL\nEste correo y la información contenida o adjunta al mismo es privada y confidencial y va dirigida exclusivamente a su destinatario. Pragsis informa a quien pueda haber recibido este correo por error que contiene información confidencial cuyo uso, copia, reproducción o distribución está expresamente prohibida. Si no es Vd. el destinatario del mismo y recibe este correo por error, le rogamos lo ponga en conocimiento del emisor y proceda a su eliminación sin copiarlo, imprimirlo o utilizarlo de ningún modo.\nCONFIDENTIALITY WARNING.\nThis message and the information contained in or attached to it are private and confidential and intended exclusively for the addressee. Pragsis informs to whom it may receive it in error that it contains privileged information and its use, copy, reproduction or distribution is prohibited. If you are not an intended recipient of this E-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, reta
> in or redistribute any portion of this E-mail.
Re: How to know the number of nodes?
Posted by Ravi <rt...@gmail.com>.
Yes, There is Cluster Nodes API.
http://hadoop.apache.org/docs/r2.4.1/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html#Cluster_Nodes_API
Best,
Ravi
On Oct 8, 2014, at 8:15 AM, gortiz <go...@pragsis.com> wrote:
> I would like to know the number of nodes my cluster has. Is it possible in YARN and MapReduce from Java?
>
> I suppose that you have installed a TaskTracker in any node.
> AVISO CONFIDENCIAL\nEste correo y la información contenida o adjunta al mismo es privada y confidencial y va dirigida exclusivamente a su destinatario. Pragsis informa a quien pueda haber recibido este correo por error que contiene información confidencial cuyo uso, copia, reproducción o distribución está expresamente prohibida. Si no es Vd. el destinatario del mismo y recibe este correo por error, le rogamos lo ponga en conocimiento del emisor y proceda a su eliminación sin copiarlo, imprimirlo o utilizarlo de ningún modo.\nCONFIDENTIALITY WARNING.\nThis message and the information contained in or attached to it are private and confidential and intended exclusively for the addressee. Pragsis informs to whom it may receive it in error that it contains privileged information and its use, copy, reproduction or distribution is prohibited. If you are not an intended recipient of this E-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, reta
> in or redistribute any portion of this E-mail.