Hi Iver, The implementation of the script depends on your setup. The main thing is that it should be able to accept a bunch of IP addresses and DNS names and be able to give back the rackIDs for each. It is a one-to-one correspondence between what you pass and what you get back. For getting the rackID the script could deduce it from the IP address, or, query some service (similar to the way dns works, or some similar mechanism), or, in the extreme case, read a file that has the mapping from IP address to rackId. Thanks, Devaraj.
> -----Original Message----- > From: ?? [mailto:[EMAIL PROTECTED] > Sent: Friday, June 06, 2008 8:13 AM > To: core-user > Subject: Hadoop topology.script.file.name Form > > hi, > > I want to setup a hadoop cluster, and I want to make the > cluster to be Rack Awareness. But I can't find any document > about the form of topology.script.file.name. > > Could anybody give me an example about the form of > topology.script.file.name? > > thanks a lot. > > iver > > 2008-06-06 > ________________________________ > > > >
