Apache Flink - Question about metric registry and reporter and context information

[M Singh]

Hi:
I wanted to find if the metric reporter and registry are instantiated per task 
manager (which is a single JVM process) or per slot.  I believe it per task 
manager (JVM process) but just wanted to confirm.
Also, is there a way to access context information (eg: task manager name etc) 
in the metric reporter or registry just like in the rich function open method ?
Thanks