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From li ping <li.j...@gmail.com>
Subject Re: How do I insert a new node while running a MapReduce hadoop?
Date Fri, 11 Feb 2011 03:30:53 GMT
of course you can.
What is the node type, datanode?job tracker?task tracker?
Let's say you are trying to add a datanode.
You can modify the xml file let the datanode pointed to the NameNode,
JobTracker, TaskTracker.


  <description>The host and port that the MapReduce job tracker runs
  at.  If "local", then jobs are run in-process as a single map
  and reduce task.

In most cases, the tasktracker and datanode are running on the same machine
(to get the best performance).

After doing this, you can start the hdfs by command start-dfs.sh
On Fri, Feb 11, 2011 at 11:13 AM, Sandro Simas <sandro.csimas@gmail.com>wrote:

> Hi, i started using hadoop now and I'm doing some tests on a cluster of
> three
> machines. I wanted to insert a new node after the MapReduce started, is
> this
> possible? How do I?


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