Implement reconnect when connection closed by Pusher

[mloughran]

Currently if Pusher closes the socket, the client will infinite loop since it rescues IOError, which is an ancestor of EOFError.

I imagine you'll see this happening every few weeks on average - do you see this @rkh @pat?

[rkh]

We currently use the ruby client for our command line client only, so we don't have any advanced monitoring in place and no long running processes. I have seen it hang, usually after I lose my network connection (for instance, when putting computer to sleep but having the monitor run).

[mloughran]

@rkh makes sense, explains why this isn't a biggie for you guys :)

+1, there should be a way to monitor the connection and auto reconnect on connection errors.

[macool]

👍

[snitko]

Has anyone found where exactly in the code of pusher-ruby-client this rescue clause is located? I found a couple, but they don't seem to be the ones causing this loop. What happens for me is the client suddenly stops receiving updates and I see no messages from logger whatsoever.

[zimbatm]

These is a design issue where https://github.com/pusher/pusher-ruby-client/blob/master/lib/pusher-client/websocket.rb#L89 will ignore IO errors and return an empty list of messages. https://github.com/pusher/pusher-ruby-client/blob/master/lib/pusher-client/socket.rb#L206 who consumes them will see that there is no message and go for the next iteration of the loop. Somewhere around there we should probably emit a "pusher:connection_disconnected" event and let the user deal with the reconnection strategy that he wants to use.

[tacticiankerala]

I am getting infinite loop of EOF logs from pusher. Not sure under which circumstance it occurs.

When will the socket connection throw EOF error?

[neurogenesis]

+1, seeing this issue 1-2 times a week. noticed that @zimbatm checked in two related changes ~26 days ago for websocket.rb and socket.rb (9b187b3). since these appear to be server-side, is there an idea of when this might make it into production?

[zimbatm]

I have started a rewrite last week but it's low priority, I don't know how long it will take to release it.

[owenthereal]

+1, any update on this?