It appears, that queryable state access significantly changed in 1.4 compared to 1.3.

Documentation on the queryable state client https://ci.apache.org/projects/flink/flink-docs-release-1.4/dev/stream/state/queryable_state.html#example <https://ci.apache.org/projects/flink/flink-docs-release-1.4/dev/stream/state/queryable_state.html#example>
States that the client needs to connect to a proxy port.
My implementation, which I used for 1.3 is enclosed
Here I am setting both server port and proxy port.
When I am running it on a localhost and try to do lsof -i:9069 and lsof -i:9067 It does not show anything using this port.

Am I missing something?

As a result my query implementation  
Return an error - connection refused

My state is defined in the following class

Boris Lublinsky
FDP Architect
[EMAIL PROTECTED]
https://www.lightbend.com/