I plan to push the following patches to branch-0.23 tomorrow morning unless there's any objection: HDFS-1620. Rename HdfsConstants -> HdfsServerConstants, FSConstants -> HdfsConstants. (Harsh J Chouraria via atm) HDFS-2197. Refactor RPC call implementations out of NameNode class. Contributed by Todd Lipcon. HDFS-2314. MRV1 test compilation broken after HDFS-2197. Contributed by Todd Lipcon
The motivation is that the rename in HDFS-1620 touched most of the files in HDFS and will cause future backports to have a lot of conflicts unless we backport this one. HDFS-2197 moved all of the RPC methods out of NameNode.java to a new class, and hence would cause conflicts on any future changes that affect the NN RPC. 2314 is a simple bugfix on 2197. The backports were straightforward so I'll assume it doesn't need a separate review. If you'd like to take a look, I pushed a tree here: https://github.com/toddlipcon/hadoop-common/tree/branch-0.23-backport-2197 Thanks -Todd -- Todd Lipcon Software Engineer, Cloudera