svn merge -c 1590668 FIXES: MAPREDUCE-5812. Make job context available to OutputCommitter.isRecoverySupported(). Contributed by Mohammad Kamrul Islam


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1590675 13f79535-47bb-0310-9956-ffa450edef68