Alexey. I answered to your examples and issues you provide. But, it seems the discussion of the API and the Java code itself is not the goal of this thread anymore.
> Should we provide a way to know the number of metrics and registries in > advance? No. If you think this is the real use-as let’s add `size` methods. It will be the simple API *extension*. > There is no separation on public and internal metrics Any metric can be changed(removed) in any time. But we will try not to do it unless we have a strong reason. > Will we allow users to register their own metrics? No. > It's still not clear how a user will map old interfaces and methods to the > new metric names. We should write this information in the deprecation message. > 30 янв. 2020 г., в 20:27, Alexey Goncharuk <alexey.goncha...@gmail.com> > написал(а): > > Nikita, > > Disagree here. I already gave an example in this thread of how you need to > peek into configuration in order to obtain an instance of exporter SPI > which may not necessarily be the type you need. That's why IGNITE-12553 was > created in the first place.
