[HIVE-4625] HS2 should not attempt to get delegation token from metastore if using embedded metastore

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0
• Fix Version/s: 1.2.0
• Component/s: HiveServer2
• Assignee: Hari Sankar Sivarama Subramaniyan Assign to me
• Reporter: Thejas Nair
• Created: 29/May/13 02:59
• Updated: 04/Jul/17 12:18
• Resolved: 27/Apr/15 20:04

Description

colored textIn kerberos secure mode, with doas enabled, Hive server2 tries to get delegation token from metastore even if the metastore is being used in embedded mode.
To avoid failure in that case, it uses catch block for UnsupportedOperationException thrown that does nothing. But this leads to an error being logged by lower levels and can mislead users into thinking that there is a problem.

It should check if delegation token mode is supported with current configuration before calling the function.