Folks, Somewhere between MR-279 and mavenization we have broken the support for allowing _developers_ to run single-node installs from the non-packaged 'build' i.e. ability to run single-node clusters without the need to use a tarball/rpm etc. (I fully suspect MR-279 is blame as much as anyone else! *smile*)
I propose we go ahead and stop support for this officially to prevent confusion I already see among several folks (this has come up several times on our lists in context of hadoop-0.23). Some benefits I can think of: a) Focus on fewer 'features' in the core. b) Reduce maintenance/complexity in our scripts (bin/hadoop, bin/hdfs etc.). d) Force us devs to eat our own dogfood when it comes to packaging etc. (I can think of numerous cases where devs have broken the tarball/rpm generation since they don't use it all the time.) Clearly, we *should* back this up by improving our docs for new devs (wiki and/or the site: http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/SingleCluster.html) and I'm happy to volunteer. Thoughts? thanks, Arun
