Socket io how many clients

Set after the connect event is triggered, and updated after the reconnect event. Sends a message event. See socket. Emits an event to the socket identified by the string name. Any other parameters can be included. All serializable datastructures are supported, including Buffer. The socket actually inherits every method of the Emitter class, like hasListeners , once or off to remove an event listener. Register a new catch-all listener.

The listener is added to the beginning of the listeners array. Removes the previously registered listener. IO provides additional features over a plain WebSocket object, which are listed below.

Although Socket. IO indeed uses WebSocket as a transport when possible, it adds additional metadata to each packet. That is why a WebSocket client will not be able to successfully connect to a Socket.

IO server, and a Socket. IO client will not be able to connect to a plain WebSocket server either. Operating a user chat interface would be different to monitor users browser and so on.. Python i found very handy to script a simulator Show 1 more comment. I tried to use socket. And I found out it is because socket. Suraj Rao Salem Chen Salem Chen 3 3 silver badges 3 3 bronze badges. Did you notice a difference in responsiveness when you force websockets? Do you know what size your instance was?

Also just so anyone in the future knows some old browsers don't support WebSockets which is why the upgrade may be important for some. How can we test the how much connection does the server support? How did you measure it connections? Please suggest.. This thread is old, but did anyone figure out what kind of EC2 instance to use?

I am trying to figure out what instance to choose for: 50, , , and concurrent connections. Hopefully, somebody will answer. Add a comment. Daniel Nalbach Daniel Nalbach 9 9 silver badges 15 15 bronze badges. Not with socket. The guy seemed to be using long polling which I guess is less resource hungry. Blatzo 88 1 1 silver badge 6 6 bronze badges. MajidJafari MajidJafari 8 8 silver badges 12 12 bronze badges.

Can you edit your answer and shortly explain what is going on here? After making configurations, you can check by writing this command on terminal sysctl -a grep file. David Buck 3, 32 32 gold badges 27 27 silver badges 34 34 bronze badges.

I changed count of iteration to over but number of connections is still the same. As i mentioned above - not only tcp settings of the server are importend- open file descriptors limit of system resource are importend too check manula for ulimit sysconf and check the parameter of your server please if you do so check that this parameter are used for the process of your running node-js instance. That issue was closed automatically.

Please check if your issue is fixed with the latest release, and reopen if needed with a fiddle reproducing the issue if possible. Skip to content. Star New issue.

Jump to bottom. Maximum concurrent connection? Linked pull requests. Copy link.