HIVE-6594: UnsignedInt128 addition does not increase internal int array count resulting in corrupted values during serialization (Remus Rusanu reviewed by Jitendra Pandey)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1576317 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6602 : Multi-user HiveServer2 throws error (Vaibhav Gumashta via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1576343 13f79535-47bb-0310-9956-ffa450edef68