[HDDS-1827] Load Snapshot info when OM Ratis server starts

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: OM HA, Ozone Manager
• Labels: pull-request-available
• Target Version/s: 0.5.0
• Assignee: Hanisha Koneru
• Reporter: Hanisha Koneru
• Created: 18/Jul/19 22:25
• Updated: 06/Dec/20 22:57
• Resolved: 23/Aug/19 20:19

Description

When Ratis server is starting it looks for the latest snapshot to load it. Even though OM does not save snapshots via Ratis, we need to load the saved snaphsot index into Ratis so that the LogAppender knows to not look for logs before the snapshot index. Otherwise, Ratis will replay the logs from beginning every time it starts up.

Issue Links

• is related to: HDDS-3208 Implement Ratis Snapshots on SCM
• links to: GitHub Pull Request #1130