I'm just accessing a static html file. Han
-----Original Message----- From: peter lin [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 16, 2002 4:15 PM To: Tomcat Users List Subject: Re: Concurrent Accesses I've managed to get Tomcat to handle 100+ concurrent requests getting dynamic pages that look at request parameters to determine which header/footer to display. Are your tests getting static HTML files? or are they getting dynamic pages which query a database? peter lin Han Wang wrote: > > Tomcat Users, > > The question is this: > How many concurrent accesses can tomcat 4.0.3 support? > > Now, I know this may be a function of processing power, but my own tests are > showing it much lower than expected. > > Basically did the following: > Created a simple java app that spawns off n threads, each thread making an > access to a file hosted by tomcat. Code snipped shown below: > > At n > 17, I start getting > > java.net.ConnectException: Connection refused: connect > > The number of connetions refused is roughly proportional to the number of > thread over 17. > > Is there some configuration I have to change? > I already modified server.xml, > > connector acceptCount="100", minProcessors="50", maxProcessors="100" from > the default values, with NO effect. > > I also tried using Apache HTTPD and ajp13 (using the same connector settings > as above), with no effect. > > I can't believe this low number is truely the # concurrent accesses that > Tomcat can handle, this must be an artifical limit somewhere. > > Please advise (and thanks in advance) > Han Wang > [EMAIL PROTECTED] > > SAMPLE CODE: > > public class TestClient extends Thread { > public void run() { > URL url = new URL("http://localhost:8080/axis/";); > InputStream in = url.openStream(); > URLConnection conn = url.openConnection(); > int len = conn.getContentLength(); > } > > public static void main(String[] args) { > int n = Integer.parseInt(args[0]); > TestClient [] threads = new TestClient[n]; > > for (int i = 0; i<n ; i++) { > threads[i] = new TestClient(); > } > > for (int i = 0; i<n ; i++) { > threads[i].start(); > } > > for ( int i=0; i<n; i++ ) { > threads[i].join(); > > } > } > } > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
