HIVE:7219 - Improve performance of serialization utils in ORC (Prasanth J reviewed by Gunther Hagleitner, Gopal V)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1603240 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7190 : WebHCat launcher task failure can cause two concurent user jobs to run (Ivan Mitic reviewed by Eugene Koifman, via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1603288 13f79535-47bb-0310-9956-ffa450edef68