[HIVE-18850] Add a timeout for query parser

• Type: Improvement
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3.2
• Component/s: Parser
• Assignee: Amruth Sampath
• Reporter: Amruth Sampath
• Created: 02/Mar/18 08:16
• Updated: 03/Mar/18 10:24

Description

Certain queries might take a very high time to parse.

A facility to short circuit the parsing if it takes more time (configurable) would be really useful. 

Proposed solution

Add a property parser.timeoutSec. **Invoke the core parse method in a different thread. Wait till the configured or return user exception.