Hello,
We are using QueryableState in some of Nussknacker deployments as a nice
addition, allowing end users to peek inside job state for a given key
(we mostly use custom operators).
Judging by mailing list and feature radar proposition by Stephan:
https://github.com/StephanEwen/flink-web/blob/feature_radar/img/flink_feature_radar.svg
this feature is not widely used/supported. I'd like to ask:
- are there any alternative ways of accessing state during job
execution? State API is very nice, but it operates on checkpoints and
loading whole state to lookup one key seems a bit heavy?
- are there any inherent problems in QueryableState design (e.g. it's
not feasible to use it in K8 settings, performance considerations) or
just lack of interest/support (in that case we may offer some help)?
thanks,
maciek
