[FLINK-10351] Ignore specific operator's state when restore from savepoint

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.6.0
• Component/s: Runtime / State Backends
• Assignee: Jiayi Liao
• Reporter: Jiayi Liao
• Created: 16/Sep/18 18:46
• Updated: 03/Nov/18 13:46
• Resolved: 03/Nov/18 13:46

Description

The story is that I want to change autoWatermarkInterval, but I find that it didn't help because the processing time service is restored from the state backend.
So I wonder if we can provide a command like --ignoreState <operator ID> to let users abandon the state they don't want?
I think it'll be helpful.