> You are using the LOOPBACK environment which requires that the Flink > cluster can connect back to your local machine. Since the loopback > environment by defaults binds to localhost that should not be possible.
On the Flink runner page, we recommend using --net=host to avoid the kinds of networking issues Ashish is experiencing. But the Docker documentation says the host networking option is only available on Linux ( https://docs.docker.com/network/host/). You will either have to: a) expose the required ports, or b) run the job server in a local process instead of a Docker container, as described in older versions of the documentation ( https://web.archive.org/web/20191228110311/https://beam.apache.org/documentation/runners/flink/ )