> From: millerKiller [mailto:smille8...@hotmail.com] > Subject: RE: Socket Error in tomcat, white screen in browser > > (1) On startup, does Tomcat have to set up these dormant > sockets(inactive/listening/passive) or, does Tomcat create > them upon a need base?
They're established during Tomcat initialization. They should appear in the netstat display by the time Tomcat logs its server startup message. For example, here are the ones from my Vista system: Feb 13, 2010 11:22:27 AM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Feb 13, 2010 11:22:27 AM org.apache.coyote.http11.Http11NioProtocol start INFO: Starting Coyote HTTP/1.1 on http-8081 Feb 13, 2010 11:22:27 AM org.apache.catalina.startup.Catalina start INFO: Server startup in 3943 ms > (2) This one might answer number (1). Why does Tomcat use the three > different sockets, doesn't it just need a single server listening > socket? One for each configured port. The shutdown port (default 8005) is established only on the standard IPv4 loopback address (127.0.0.1), whereas the others are on 0.0.0.0 ([::] for IPv6) - meaning all IP addresses - unless the address attribute is used on the <Connector> elements. Your snippet of server.xml showed an HTTP <Connector> on port 80, and an AJP one on 8009, so there has to be a listener set up for each. (BTW, unless you're front-ending Tomcat with IIS or httpd, you don't need the AJP <Connector>.) > I am testing the server on localHost and am getting > Proto Local Address Foreign Address State > PID > TCP 127.0.0.1:8005 0.0.0.0:0 LISTENING > 520 > Is this valid since I using localHost? No - it shows that *something* is listening on 8005, but it's not likely to be Tomcat. Use the Task Manager to find out what PID 520 is. As I mentioned before, lots of products have Tomcat embedded in them, and at least one (VMware) leaves the shutdown port set to the default, creating difficulty for anyone trying to run an out-of-the-box Tomcat. > (4)If nothing else is using the ports that I mentioned earlier when I > use netstat -ano, then why does it think there is a bind somewhere? Something *is* using 8005, which will interfere with a Tomcat configured with the default shutdown port. And again, be wary of running Tomcat under Eclipse, since Eclipse likes to use its own Tomcat configuration, not the one you thing you've set up. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
