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From Cao Yi <iridium...@gmail.com>
Subject Re: How to run a mapreduce program not on the node of hadoop cluster?
Date Tue, 20 Jan 2015 08:15:41 GMT
thank you, Ahmed! I have another question: how to build an edge node and
how to use it? can you refer some docs?

PS, I searched and found so many pages, some called it "client node", but
no page tells the details of building an edge node, and how to use it.

Best Regards,

On Wed, Jan 14, 2015 at 11:05 PM, Ahmed Ossama <ahmed@aossama.com> wrote:

>  The node that the project will be deployed on should have the same
> configuration as the cluster, and hadoop executables as well. It doesn't
> have to be one of the cluster nodes.
> This node is typically called a gateway or edge node, where it have all
> the client programs (hadoop execs, pig, etc...) and you use this node to
> submit jobs to the cluster.
> The executable use the configuration to know where to submit jobs and
> where is your hdfs nn located and so on.
> On 01/14/2015 04:39 PM, Cao Yi wrote:
> The program will be used in product environment.
> Does you mean that the program must be deployed on any node of the cluster?
>  I have some experience in operating database, I can
> query/edit/add/remove data on the OS witch the database installed on, or
> operate from the other machine remotely. Can I use Hadoop remotely as to
> use database in a similar way?
>  Best Regards,
> Iridium
> On Wed, Jan 14, 2015 at 9:15 PM, unmesha sreeveni <unmeshabiju@gmail.com>
> wrote:
>> Your data wont get splitted. so your program runs as single mapper and
>> single reducer. And your intermediate data is not shuffeld and sorted, But
>> u can use this for debuging
>>  On Jan 14, 2015 2:04 PM, "Cao Yi" <iridiumcao@gmail.com> wrote:
>>>  Hi,
>>> I write some mapreduce code in my project *my_prj*. *my_prj *will be
>>> deployed on the machine which is not a node of the cluster.
>>> how does *my_prj* to run a mapreduce job in this case?
>>>  thank you!
>>>  Best Regards,
>>> Iridium
> --
> Regards,
> Ahmed Ossama

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