It seems to be an IE wierdness. With Firefox, when an html page contains N links to exactly the same resource, Firefox opens one connection and requests this resource once. When the resource is returned, it is then used in all N places.
With IE, IE immediately opens N concurrent connections to the server and issues a request for the same resource over each connection. When the first response is received, IE then abruptly closes all the other connections. But of course this big burst of socket-creation and parallel data transfer can bog down networks and servers. This IE behaviour was causing nasty "broken socket" warning messages from Tomcat's ExtensionFilter because browsers really shouldn't close connections; the server should do that after the response is complete. I've silenced this warning, but AFAIK there isn't anything that can be done about IE's behaviour except moving to a better browser. Regards, Simon Geetha Rodricks schrieb: > Hi > > Did you get anywhere with this issue - I have found the same issue > We have a tree2 component with lots of nodes. > To render the tree I get to see multiple gets of the same image which is > definitely slows the rendering of the tree. > > Is there any way to avoid that ? > > Thanks > > > Michel Goldstein wrote: > >> Hi, >> >> I'm trying to track down a problem that seems to affect a few users of our >> application. We have a fairly large tree to display (about 1500 nodes) >> using >> Tomahawk's tree2 component (with client-side toggle). In most cases, it >> does >> take some time to load (as it has to load all nodes and each generates a >> quite large amount of Javascript/html), but in some cases it takes a LONG >> time to load (think 2 seconds to 2 minutes). When I look at the Tomcat >> access logs, I see things like: >> >> [02/Jul/2007:11:42:49 -0800] "GET >> /ptd/faces/myFacesExtensionResource/org.apache.myfaces.renderkit.html.util.MyFacesResourceLoader/11819657/tree2.HtmlTreeRenderer/images/line- >> trunk.gif HTTP/1.1" 200 466 >> [02/Jul/2007:11:43:00 -0800] "GET >> /ptd/faces/myFacesExtensionResource/org.apache.myfaces.renderkit.html.util.MyFacesResourceLoader/11819657/tree2.HtmlTreeRenderer/images/line- >> trunk.gif HTTP/1.1" 200 466 >> [02/Jul/2007:11:43:00 -0800] "GET >> /ptd/faces/myFacesExtensionResource/org.apache.myfaces.renderkit.html.util.MyFacesResourceLoader/11819657/tree2.HtmlTreeRenderer/images/line- >> trunk.gif HTTP/1.1" 200 466 >> [02/Jul/2007:11:43:00 -0800] "GET >> /ptd/faces/myFacesExtensionResource/org.apache.myfaces.renderkit.html.util.MyFacesResourceLoader/11819657/tree2.HtmlTreeRenderer/images/line- >> trunk.gif HTTP/1.1" 200 466 >> [02/Jul/2007:11:43:00 -0800] "GET >> /ptd/faces/myFacesExtensionResource/org.apache.myfaces.renderkit.html.util.MyFacesResourceLoader/11819657/tree2.HtmlTreeRenderer/images/line- >> trunk.gif HTTP/1.1" 200 466 >> ... >> >> on and on. The only common thing among those users that I have seen so far >> is that they all use Internet Explorer 6 and seem always to have this >> issue. >> I tried to run IE6 on my computer with all the configurations they've told >> they had, and wasn't able to reproduce it. Does anybody know what metadata >> is sent by the ResourceLoader that could "fool" their IE into thinking >> that >> it needs to load this image over and over again? >> >> As of versions, I'm using: >> myfaces/tomahawk: 1.1.5 >> tomcat: 5.5.9 >> >> Thank you, >> Michel >> >> >> > >
