I am trying to upgrade a Hadoop Cluster with 0.20.X and MRv1 to a hadoop
Cluster with CDH412 with HA+QJM+YARN (aka Hadoop 2.0.3) without any
data loss and minimal down time. The documentation on cloudera site iis
OK, but very confusing. BTW I do not plan on using Cloudera manager. Has
anyone attempted a clean upgrade using hadoop native commands?
Appreciate a quick reply.
Thanks,
-Dheeren