问题
I want to create one metric related to the number of errors but in fact I would like to add some contextual labels ? What is the best way to do that ? gauge ? How to create this kind of metric dynamically during the run of the task (because open method is not possible because too early) ? Thanks in advance
David
回答1:
You should be able to create a metric whenever you want -- just do it once per operator instance, before you use it.
For error reporting you might find side outputs useful as well.
来源：https://stackoverflow.com/questions/56694833/how-to-create-dynamic-metric-in-flink