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From Harsh J <ha...@cloudera.com>
Subject Re: Building and adding new Datanode
Date Tue, 18 Oct 2011 16:54:21 GMT
Ivan,

Yes, that is correct, its the DataNode that initiates the heartbeating process.

On Tue, Oct 18, 2011 at 9:48 PM,  <Ivan.Novick@emc.com> wrote:
> Hi Harsh,
>
> That brings up an interesting question i wanted to ask.
>
> The connection between the data nodes and the name node is initiated by
> the data node and not by the name node, based on the config file on the
> data node machine.
>
> Correct?
>
> Cheers,
> Ivan
>
> On 10/17/11 9:28 PM, "Harsh J" <harsh@cloudera.com> wrote:
>
>>Hey Alexander,
>>
>>Just install the DataNode packages on the machine and configure it
>>(copy over a config from existing DN perhaps, but make sure to check
>>the dfs.data.dir properties before you start), and start it up.
>>
>>It will join the cluster as long as the configuration points to the
>>right fs.default.name address. Same for TaskTracker as long as it has
>>the right mapred.job.tracker address.
>>
>>If you are using SCM, and this question is along the lines of using
>>SCM to do such a thing, please direct your question to
>>scm-user@cloudera.org
>>(https://groups.google.com/a/cloudera.org/group/scm-user)
>>
>>On Tue, Oct 18, 2011 at 6:11 AM, Gauthier, Alexander
>><Alexandre.Gauthier@teradata.com> wrote:
>>> Hi guys, noob questions;
>>>
>>>
>>>
>>> What do I need to install a new node soon to be added to a cluster and
>>> how do I add it? I'm using CDH3 distribution.
>>>
>>>
>>>
>>> Thank you!!
>>>
>>>
>>>
>>> Alex Gauthier
>>>
>>> Engineering Manager
>>> Teradata Corp.
>>> Mobile: 510-427-5447
>>> Office: 858-485-2144
>>> fax: 858-485-2581
>>> www.teradata.com <http://www.teradata.com>
>>>
>>>
>>>
>>>
>>
>>
>>
>>--
>>Harsh J
>>
>
>



-- 
Harsh J

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