First, see what a TLP means, here: http://incubator.apache.org/guides/graduation.html#introduction.
Apache Hadoop is a collection of 4 major sub-projects (Common, HDFS, YARN, and MR) presently. The top level directory structure can be found at the SVN location: http://svn.apache.org/repos/asf/hadoop/common/trunk/ MRv2 is a sub-project of Apache Hadoop, not a TLP. MRv2 resides under Hadoop, at http://svn.apache.org/repos/asf/hadoop/common/trunk/hadoop-mapreduce-project/. YARN is also still a sub-project of Apache Hadoop, not a TLP yet. YARN resides under Hadoop, at http://svn.apache.org/repos/asf/hadoop/common/trunk/hadoop-yarn-project/ HDFS is also a sub-project of Apache Hadoop, not a TLP. HDFS resides under Hadoop, at http://svn.apache.org/repos/asf/hadoop/common/trunk/hadoop-hdfs-project/ Hope this clears your confusion :) On Fri, Oct 19, 2012 at 3:58 AM, Tom Brown <tombrow...@gmail.com> wrote: > Right now Hadoop seems to refer to the bundle of the MRv1 framework > and HDFS though both can be used independently. Since MRv2 is its own > top level project, where does leave HDFS? > > --Tom > > On Thu, Oct 18, 2012 at 5:01 PM, Ruslan Al-Fakikh <metarus...@gmail.com> > wrote: >> Hi >> From the beginning YARN was a part of the Hadoop project. Now it has >> been decided to move it to a top-level apache project. >> So, now there are two ways of running hadoop jobs: >> 1) "Old" hadoop (the current stable thing) >> 2) YARN + MR implementation (the future thing, still not stable AFAIK) >> >> Hope that helps >> >> On Fri, Oct 19, 2012 at 12:33 AM, Tom Brown <tombrow...@gmail.com> wrote: >>> To all, >>> >>> I have a few questions regarding YARN (with respect to Hadoop): >>> >>> Are YARN and Hadoop separate, or is YARN the successor to Hadoop? >>> >>> What are the major conceptual differences between YARN and Hadoop? >>> >>> I have further questions, but they may or may not make sense depending >>> on the answers to the above. >>> >>> Thanks in advance! >>> >>> Tom Brown -- Harsh J
