[HDDS-1339] Implement Ratis Snapshots on OM

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.1
• Component/s: OM HA, Ozone Manager
• Labels: pull-request-available
• Target Version/s: 0.5.0
• Assignee: Hanisha Koneru
• Reporter: Hanisha Koneru
• Created: 26/Mar/19 18:31
• Updated: 06/Dec/20 22:57
• Resolved: 05/Apr/19 00:43

Description

For bootstrapping and restarting OMs, we need to implement snapshots in OM. The OM state maintained by RocksDB will be checkpoint-ed on demand. Ratis snapshots will only preserve the last applied log index by the State Machine on disk. This index will be stored in file in the OM metadata dir.

Issue Links

• is related to: HDDS-3208 Implement Ratis Snapshots on SCM
• links to: GitHub Pull Request #651