HIVE-7237 : hive.exec.parallel=true w/ Hive 0.13/Tez causes application to linger forever (Navis review by Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1604987 13f79535-47bb-0310-9956-ffa450edef68