Better thread management for HiveServer2 async threads
Review Request #14719 - Created Oct. 17, 2013 and updated
Improves the current strategy by not keeping all the async threads alive when there are no corresponding requests. The async threads terminate after a configurable keepalive time if there are no new requests to handle.
TestEmbeddedThriftBinaryCLIService, TestThriftBinaryCLIService, TestJdbcDriver2