I think if you called getInputFormat on JobConf and then called getSplits you would atleast get the locations.
http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/mapred/InputSplit.html On Sun, Apr 8, 2012 at 9:16 AM, Deepak Nettem <deepaknet...@gmail.com>wrote: > Hi, > > Is it possible to get the 'id' of the currently executing split or block > from within the mapper? Using this block Id / split id, I want to be able > to query the namenode to get the names of hosts having that block / spllit, > and the actual path to the data. > > I need this for some analytics that I'm doing. Is there a client API that > allows doing this? If not, what's the best way to do this? > > Best, > Deepak Nettem >
