[jboss-user] [Remoting] - Re: Socket keep alive with client EJB and RMI over HTTP
do-not-reply at jboss.com
Mon Aug 4 20:54:28 EDT 2008
I've been doing some experimenting, and I've found that if I run a loop like this:
| for (int i = 0; i < 100; i++)
| Client client = new Client("http://localhost:5555");
a new socket is created for each invocation, but if I reduce the delay to 4000 ms, a single socket gets reused. So it seems that Sun's java.net.HttpURLConnection implementation has some built in socket recycling mechanism, which, unfortunately, is inaccessible from the outside. I've tried playing with a ping mechanism to try to keep a single socket alive, but it's not working. Even if it did, there's no guarantee that it would work in another Java implementation.
One solution would be to change org.jboss.remoting.transport.http.HTTPClientInvoker to use something other than HttpURLConnection, something like Apache HttpClient. However, the sun is setting on Remoting 2 and rising on Remoting 3, so the time has passed for significant development of Remoting 2. Instead, we'll just make sure the problem does not arise in Remoting 3.
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