Also note that if you use a Microsoft OS, you will be limited to 10 queued
connections unless you run the Server, Advanced Server, etc., version of the OS.
Scott
----- Original Message -----
From: "Scott Nichol" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, April 22, 2002 8:09 AM
Subject: Re: Heavy loads on SOAP RPC
> The Web server and/or servlet container against which you are testing probably
> has a limit set for the number of connections it will queue. In Tomcat 3.2.1,
> for example, server.xml has the "backlog" parameter for a Connector:
>
> <!-- Normal HTTP -->
> <Connector className="org.apache.tomcat.service.PoolTcpConnector">
> <Parameter name="handler"
> value="org.apache.tomcat.service.http.HttpConnectionHandler"/>
> <Parameter name="port"
> value="8080"/>
> <Parameter name="backlog" value="100"/>
> </Connector>
>
> In Tomcat 4.0.1, the Connector has an acceptCount attribute:
>
> <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
> <Connector className="org.apache.catalina.connector.http.HttpConnector"
> port="8080" minProcessors="5" maxProcessors="75"
> enableLookups="true" redirectPort="8443"
> acceptCount="10" debug="0" connectionTimeout="60000"/>
>
> Scott Nichol
>
> ----- Original Message -----
> From: "Tiago Fernandes Thomaz" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, April 22, 2002 5:58 AM
> Subject: Heavy loads on SOAP RPC
>
>
> > Hi,
> >
> > I'm facing some trouble concerning heavy loads on soap rpc.
> > I coded a soap client that simulates several clients with a Thread
> > implementation.
> > My snippet code is:
> >
> > public class SOAPClient
> > {
> > public static void main (String[] args) throws Exception
> > {
> > URL url = new URL(args[0]);
> > String sXML = null;
> >
> > for (int i = 0; i < 50; i++)
> > {
> > sXML = "<?xml version=\"1.0\" encoding=\"US-ASCII\"?><request client
> > = \"client"+i+"\" action = \"action"+i+"\"><parameter name =
> > \"name"+i+"\">My Name"+i+"</parameter></request> ";
> >
> > Call call = new Call();
> > call.setTargetObjectURI("urn:Connector");
> > call.setMethodName("sendRequest");
> > call.setEncodingStyleURI("http://schemas.xmlsoap.org/soap/encoding/";);
> > Vector params = new Vector();
> > params.addElement(new org.apache.soap.rpc.Parameter("sXML",
> > String.class, sXML, null));
> >
> > call.setParams(params);
> >
> > (new TestThread(call, url)).start();
> > }
> > }
> > }
> >
> >
> > public class TestThread extends Thread
> > {
> > Call testCall = null;
> > URL url = null;
> >
> > public TestThread(Call testCall, URL url)
> > {
> > this.testCall = testCall;
> > this.url = url;
> > }
> >
> > public void run()
> > {
> > try {
> > org.apache.soap.rpc.Response resp = testCall.invoke(url, "");
> >
> > if (resp.generatedFault())
> > {
> > Fault fault = resp.getFault();
> > System.out.println(this.getName() + "Fault Code = " +
> > fault.getFaultCode());
> > System.out.println(this.getName() + "Fault String = " +
> > fault.getFaultString());
> > }
> > else
> > {
> > org.apache.soap.rpc.Parameter result = resp.getReturnValue();
> > String res = result.toString();
> > Object obj = result.getValue();
> > String resp2 = obj.toString();
> > System.out.println(this.getName()+" - Result: "+resp2);
> > }
> > }
> > catch (Exception e)
> > {
> > System.out.println(this.getName() + " :Error! - " + e.getMessage());
> > }
> > }
> > }
> >
> > , and I'm getting the following exception for most of the Threads (30 out of
> > 50):
> >
> > Thread-i Error opening socket: Connection refused: connect
> >
> > Does anyone explain me why am I getting this? Is it because SOAP can only
> > handle about 20 http connections?
> >
> > Tiago Fernandes Thomaz
> >
>
>
