[IGNITE-18600] Meta Storage Watch events must be atomically persisted in the Vault

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0
• Labels: ignite-3
• Epic Link: Metastorage learners support
• Assignee: Aleksandr Polovtsev
• Reporter: Aleksandr Polovtsev
• Reviewer: Alexander Lapin
• Created: 20/Jan/23 16:37
• Updated: 04/Sep/24 16:19
• Resolved: 23/Jan/23 15:11

Description

Before IGNITE-18397 all data, that has been processed by Meta Storage Watches, was automatically persisted in the Vault. In IGNITE-18397 this feature was removed, which breaks the expected design. This feature should be re-implemented with the following guarantees:

1. Only keys that match any of the registered watches should be saved to the Vault;
2. Data should be saved to the Vault atomically in a single batch along with the applied revision;
3. If any of the Watch Listeners throws an exception, then no data should be saved.

Issue Links

• links to: GitHub Pull Request #1561