- From: Yves Lafon <ylafon@w3.org>
- Date: Mon, 29 May 2000 14:07:59 +0200 (MET DST)
- To: Corey Wineman <cwineman@perseus.anserwv.org>
- cc: www-jigsaw@w3.org
On Thu, 27 Apr 2000, Corey Wineman wrote: > Hello, > > I am trying to use the HTTP client classes and am having a few problems. A > few days ago a asked a question about deadlocks that happen when trying to > get connections. Following someones' suggestion, I downloaded some newer > versions and the problem seemed to go away. Now its back. Whenever I hit the > point in HttpBasicServer.getConnection() where it has to wait for an > available connection, it waits forever. What is causing this to happen? What > is happening to my connections? Say I set the connection pool to one. Is > there anything that I can do to make sure that the connection closes > properly and can be reused? What is monitoring those connections and how > does the monitor determine that a connection is okay to be reused? We got a fix recently for another problem, apparently some JVM are not implementing notify() as they should, and notifyAll() calls instead of notify() were fixing a kind-of-deadlock problem, you may check with the latest releases > Also, I have a question that I think I know the answer to. When creating a > Socket, is there anyway to control how long it will attempt to make a > connection. If you try to create a socket to a bogus site, you will get a > NoRouteToHostException( or something like that), but it takes several > minutes for the exception to come up. Can you set a timeout for the initial > connection? I believe the setTimeout only works a successful initial > connection. My guess is that the answer is no. I think you have to try to > make the connection in a separate thread and then put a timer on it. Hum, in plain C it is easy to do (well relatively easy ;) ), but I don't think it is possible in java, except with the heavy way you are describing. Regards, /\ - Yves Lafon - World Wide Web Consortium - /\ / \ Architecture Domain - Jigsaw Activity Leader / \ \/\ / \ / \ http://www.w3.org/People/Lafon - ylafon@w3.org
Received on Monday, 29 May 2000 08:09:50 UTC