The launcher

It is possible to disable Posttroll Nameserver usage for the incoming messages by starting satpy_launcher.py with command-line arguments -n False -a tcp://<host>:<port> where the host and port point to a message publisher. Multiple publisher addresses can be given by supplying them with additional -a switches.

The Trollflow2 process can be terminated gracefully by sending SIGTERM to the it, eg. by kill -SIGTERM <pid> where <pid> is the process ID number of Trollflow2. After this no new messages will be accepted, and the completion of currently running processing will exit Trollflow2.