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Re: Adding nodes
The master and slave files, if I remember correctly are used to start the correct daemons on the correct nodes from the master node.
Raj
>________________________________
> From: Joey Echeverria <[EMAIL PROTECTED]>
>To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
>Cc: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
>Sent: Thursday, March 1, 2012 4:57 PM
>Subject: Re: Adding nodes
>
>Not quite. Datanodes get the namenode host from fs.defalt.name in core-site.xml. Task trackers find the job tracker from the mapred.job.tracker setting in mapred-site.xml.
>
>Sent from my iPhone
>
>On Mar 1, 2012, at 18:49, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
>
>> On Thu, Mar 1, 2012 at 4:46 PM, Joey Echeverria <[EMAIL PROTECTED]> wrote:
>>
>>> You only have to refresh nodes if you're making use of an allows file.
>>>
>>> Thanks does it mean that when tasktracker/datanode starts up it
>> communicates with namenode using master file?
>>
>> Sent from my iPhone
>>>
>>> On Mar 1, 2012, at 18:29, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
>>>
>>>> Is this the right procedure to add nodes? I took some from hadoop wiki
>>> FAQ:
>>>>
>>>> http://wiki.apache.org/hadoop/FAQ
>>>>
>>>> 1. Update conf/slave
>>>> 2. on the slave nodes start datanode and tasktracker
>>>> 3. hadoop balancer
>>>>
>>>> Do I also need to run dfsadmin -refreshnodes?
>>>
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