[HIVE-21484] Metastore API getVersion() should return real version

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.4.0, 3.2.0, 4.0.0-alpha-1
• Assignee: Vihang Karajgaonkar
• Reporter: Vihang Karajgaonkar
• Created: 20/Mar/19 22:18
• Updated: 17/Nov/22 08:51
• Resolved: 29/Mar/19 18:17

Description

Currently I see the getVersion implementation in the metastore is returning a hard-coded "3.0". It would be good to return the real version of the metastore server using HiveversionInfo so that clients can take certain actions based on metastore server versions.

Possible use-cases are:
1. Client A can make use of new features introduced in given Metastore version else stick to the base functionality.
2. This version number can be used to do a version handshake between client and server in the future to improve our cross-version compatibity story.