For starters look at any monitoring tool like vaidya, hadoop UI ( ganglia too, haven't read much on it though ). Not sure if you need this for debugging purposes or for some other real-time app.. You should be able to get info on localhost of each of your map tasks in a pretty straightforward way using Java Inetaddress APIs( and use that info for search?)
Thanks, Amogh On 10/15/09 12:11 AM, "Long Van Nguyen Dinh" <[email protected]> wrote: Hello again, Could you give me any hint to start with? I have no idea how to get that information. Many thanks, Van On Tue, Oct 13, 2009 at 9:22 PM, Long Van Nguyen Dinh <[email protected]> wrote: > Hi all, > > Given a map task, I need to know the IP address of the machine where > that task is running. Is there any existing method to get that > information? > > Thank you, > Van >
