KeepAliveInterval behavior with WebSockets in the new version (8.0)

Question

Hi

In the previous version (7.x), setting the WebSocket's KeepAliveInterval to 10 minutes caused no issues.
Poll(1000) did not throw exceptions, and the system operated normally.
I maintain the Ping/Pong connection by sending a separate message every 10 minutes.

In the new version (8.0.9709), however, an exception occurs after 2 minutes during Poll(1000), with the error message: "The operation was not completed within the specified time limit."
There are no issues if the KeepAliveInterval is set to 30 seconds in the new version.

What steps should I take to continue using a 10-minute KeepAliveInterval in the new version without encountering this issue, just as in the previous version?

Thank you

Answer 1

Hello,

can you please post here (or send it to support@rebex.net) a code to reproduce the issue? I have tried the code below via ws:// and wss:// protocols with no issues:

using (var client = new WebSocketClient())
{
    client.LogWriter = new FileLogWriter(@"c:\logs\ws.log", LogLevel.Debug);
    client.Options.KeepAliveInterval = new TimeSpan(0, 10, 0);

    client.Connect("wss://testserver");

    // run the loop for 13 minutes
    for (int seconds = 0; seconds < 13 * 60; seconds++)
    {
        if (client.Poll(1000))
        {
            throw new ApplicationException("An unexpected message received.");
        }
    }
}

Does the code above works with your server? If not, can you please, send us the produced log file (c:\logs\ws.log)?

Comments

I have sent the logs via email.

---

Thank you for the log file. We were able to reproduce the issue locally. We will fix it ASAP.

Note: The issue is related to `wss://` only.