[FLINK-3758] Add possibility to register accumulators in custom triggers

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Resolved
• Assignee: Konstantin Knauf
• Reporter: Konstantin Knauf
• Created: 14/Apr/16 10:12
• Updated: 02/Oct/19 17:49
• Resolved: 16/Jun/16 05:43

Description

For monitoring purposes it would be nice to be able to to use accumulators in custom trigger functions.

Basically, the trigger context could just expose getAccumulator of RuntimeContext or does this create problems I am not aware of?

Adding accumulators in a trigger function is more difficult, I think, but that's not really neccessary as the accummulator could just be added in some other upstream operator.

Issue Links

• is superceded by: FLINK-4063 Add Metrics Support for Triggers
• links to: GitHub Pull Request #1979