Daniel da Silva <ddasi...@umd.edu> writes: > I am writing a custom IRC server, and I was wondering would be the > best way to administer code updates to the daemon. Am I doomed to have > to restart the server every time I want to do an update (which would > disconnect all clients)? I don't mind doing something a little more > advanced if it means I can keep close to continuous uptime.
There are several possible approaches: 1) load new code into the server with the import function, being careful about what data structures you can mess with etc. 2) have a simple front end proxy that maintains the inbound tcp connections to clients, and uses a connectionless or restartable protocol to pass the info to the server. Of course now you have the issue of how to update the proxy. But for a serious HA system you have to do stuff like this anyway. 3) Start the new server in a new process, and use the Linux SCM_RIGHTS message that lets you pass open file descriptors through Unix domain sockets, to hand off any open TCP connections from the old server to the new one. Maybe there are other ideas possible too. -- http://mail.python.org/mailman/listinfo/python-list
