[FLINK-31991] Update Autoscaler doc to reflect the changes brought by the new source scaling logic

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: kubernetes-operator-1.5.0
• Component/s: Autoscaler
• Labels: pull-request-available
• Assignee: Zhanghao Chen
• Reporter: Zhanghao Chen
• Created: 03/May/23 12:19
• Updated: 03/May/23 15:40
• Resolved: 03/May/23 15:40

Description

The current statements on job requirements are outdated:

- All sources must use the new Source API (most common connectors already do)
- Source scaling requires sources to expose the standardized connector metrics for accessing backlog information (source scaling can be disabled)

The Autoscaler doc needs to be updated to reflect the changes brought by the new source scaling logic FLINK-31326 Disabled source scaling breaks downstream scaling if source busyTimeMsPerSecond is 0 - ASF JIRA (apache.org).

Issue Links

• links to: GitHub Pull Request #582