[FLINK-32904] Support cron expressions for periodic snapshots triggering

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: kubernetes-operator-1.7.0
• Component/s: Kubernetes Operator
• Labels: pull-request-available
• Assignee: Alexander Fedulov
• Reporter: Alexander Fedulov
• Created: 21/Aug/23 14:41
• Updated: 04/Sep/23 06:05
• Resolved: 04/Sep/23 06:05

Description

Current functionality to trigger savepoints and checkpoints is based on specifying a fixed interval. This approach gives little control to prevent potentially overlapping snapshots running simultaneously in adjacent deployments and can cause issues for high scale, large state jobs. In order to have better control over the exact schedule, triggering based on cron expressions should be added.

Issue Links

• links to: GitHub Pull Request #656