Server hangs every few days about minidyndns

[arkanis]

Hi Catscrash,

I noticed that, too. In my case it's a router that updates the IP address via HTTP every 5 minutes. Unfortunately the router sometimes forgets to close the TCP connection used for the HTTP request. It just keeps open forever. It seems that whenever I think that something is so stupidly simple that no one can screw it up there's always a router somewhere that screws it up. :(

Since the server handles TCP requests in a blocking manner within the event loop this pretty much blocks the entire event loop. The assumption was that every router would mange to properly send a few characters over a TCP connection and that I can simplify the server with that. Bad idea. I looked around a bit and a possible workaround is to use one of Rubys buildin TCP servers for the job. I'm not sure if the TCP server is still in the stdlib so maybe it's best to just spawn a thread for each connection (and rely on the global interpreter lock). Not perfect but not many lines of code.

Unfortunately I'm still quite busy at work and it'll probably take some time until I can look into it. I'll keep you updated.

[arkanis]

Hi there. I updated some parts of minidyndns and the newer version shouldn't have any trouble with strange long running HTTP requests blocking the DNS server. At least in my tests. :)

Feel free to give the new version a try. You can reopen the issue if you still experience some hanging.