Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/2650
I would suggest to not cache the filters and try to catch the "reporter
uses changing filters" case:
- It sounds like pre-mature optimization. Since one can use multiple
reporters, why use different formats?
- If one really ever needs multiple formats, one can simply use multiple
instances of the same reporter that accept different subsets of metrics
- Most importantly, this actually disables the scope caching for a very
common case, when the reporter simple provides a `new MyFilter()` to each scope
building call. I bet that most users do not overwrite `equals()` on their
character filters.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
