** See if this (very old) reply from Mikhail helps. http://search-hadoop.com/m/QFVD1kEmQT Here is the patch he is referring to. http://m1.archiveorange.com/m/att/RNVYm/ArchiveOrange_8dEcdJI4bXFkKHBnsll8YzTc8u8a.patch
**replying in hurry On Tue, Jul 26, 2011 at 12:28 PM, John Armstrong <john.armstr...@ccri.com> wrote: > I'm back to trying to add libraries to the classpath instead of handing > around a fat JAR. This time I've served up my directory full of JARs on > NFS, which each node in my cluster has mounted at /mnt/hadoop-libs. Now my > question is how to add that (local) directory to the classpath of the > mapper and reducer tasks. I've tried adding "-classpath > /mnt/hadoop-libs/*" to mapred.map.child.java.opts, but it doesn't seem to > work; the actual classpath I can see being called is just the local > /usr/lib/hadoop/lib stuff as usual. >
