Provided by: python3-portpicker_1.2.0-1_all 
NAME
portserver.py - server to hand out unused port numbers
DESCRIPTION
usage: portserver.py [-h] [--portserver_static_pool PORTSERVER_STATIC_POOL]
[--portserver_unix_socket_address PORTSERVER_UNIX_SOCKET_ADDRESS]
[--verbose] [--debug]
optional arguments:
-h, --help
show this help message and exit
--portserver_static_pool PORTSERVER_STATIC_POOL
Comma separated N-P Range(s) of ports to manage (inclusive).
--portserver_unix_socket_address PORTSERVER_UNIX_SOCKET_ADDRESS
Address of AF_UNIX socket on which to listen (first @ is a NUL).
--verbose
Enable verbose messages.
--debug
Enable full debug messages.
PORT SERVER
A port server is intended to be run as a daemon, for use by all processes running on the host. It
coordinates uses of network ports by anything using a portpicker library. If you are using hosts as part
of a test automation cluster, each one should run a port server as a daemon. You should set the
PORTSERVER_ADDRESS=@unittest-portserver environment variable on all of your test runners so that
portpicker makes use of it.
A port server listens on a unix socket, reads a pid from a new connection, tests the ports it is managing
and replies with a port assignment port for that pid. A port is only reclaimed for potential reassignment
to another process after the process it was originally assigned to has died. Processes that need multiple
ports can simply issue multiple requests and are guaranteed they will each be unique.
TYPICAL USAGE
1) Run one instance of this process on each of your unittest farm hosts.
2) Set the PORTSERVER_ADDRESS environment variable in your test runner
environment to let the portpicker library know to use a port server
rather than attempt to find ports on its own.
$ /path/to/portserver.py &
$ export PORTSERVER_ADDRESS=@unittest-portserver
$ # ... launch a bunch of unittest runners using portpicker ...