AJAX Call timout: code: 12002

[Prakas Subed]

AJAX call fails and we receive http code 12002; even when session timeout is set to 0 on web.xml on following code:

We receive the the error inconsistently. i.e. somtimes within 20 minutes of accessing the JSP; sometimes 10 minutes.

We have code similar to following (part of a JSP); appreciate any pointers:

    
<script>
  var req;
  var which;
  var strContentText;
  
  var bottomView = null;
  
  function retrieveURL(url) {
 
    if (window.XMLHttpRequest) { // Non-IE browsers
      req = new XMLHttpRequest();
      req.onreadystatechange = processStateChange;
 
      try {
        req.open("GET", url, true);
      } catch (e) {
        alert(e);
      }
     req.send(null);
 
    } else if (window.ActiveXObject) { // IE
      req = new ActiveXObject("Microsoft.XMLHTTP");
      if (req) {
        req.onreadystatechange = processStateChange;
        req.open("GET", url, true);
        req.send();
      }
    }
  }
 
 
  function processStateChange() {
    if (req.readyState == 4) { // Complete
      if (req.status == 200) { // OK response
    var timerId = null;            
    document.getElementById("theTable").innerHTML = req.responseText;               
    timerId = self.setTimeout('retrieveURL(\'\<%= request.getContextPath() %>\/panes\/panesDataBrowse.do\')', 1000);
      } else {
 alert("There has been problem getting updated information for this screen: \n" + req.statusText + "Status: " + req.status );
      }
    }
  }
 

[Eric Pascarello]

Most people normally will have a setTimeout that is fired with an Ajax Request. If it is left open for X amount of time and it normally takes Y amount of time, then they cancel it with the abort9) method.

Eric

[Prakas Subed]

I can get the Y; that's 1000 ms as set on above code. Any pointers on how to get/set X?

Thanks,