Not sure if I'm missing something here, but can you not just point your web browser at <ip address of your job tracker>:50030 . Or does the information given there not cover what you need?

Quoting Phantom <[EMAIL PROTECTED]>:

I would like to understand how the map jobs are assigned. Intuitively it
would seem that the jobs would be assigned to the nodes that contain the
blocks needed for the map task. However this need not be necessarily true.
Figuring where the blocks are placed would help me understand this a little
more.

A

On 7/19/07, Arun C Murthy <[EMAIL PROTECTED]> wrote:

On Thu, Jul 19, 2007 at 08:57:42AM -0700, Phantom wrote:
Hi All

Is there a way to find out on which nodes in my cluster the Map/Reduce
jobs
are running after I submit my job ?

Short answer: No.
Is there a specific reason you need this? Maybe we can try and help you
given a more detailed description...

Also is there anyways to determine given
a file where the different blocks of the file are stored ?

I think

http://lucene.apache.org/hadoop/api/org/apache/hadoop/fs/FilterFileSystem.html#getFileCacheHints(org.apache.hadoop.fs.Path,%20long,%20long)
is what you want...

hth,
Arun




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