[Chameleon] Proxy server getting fed up?

Paul Spencer pspencer at dmsolutions.ca
Thu Nov 4 08:12:27 EST 2004

Jacob, I've never heard of this problem, but I've also not heard of 
anyone using Chameleon in this configuration.

RE the javascript stuff, the jsapi samples in the latest version from 
cvs seem to be working fine.  There'll be a beta 3 release very shortly 
that you could try if you don't want to try the cvs version ;)

Please let us know if you find an answer ...



Jacob Delfos wrote:
> Hi All,
> I have run into a little problem to which I cannot seem to find a good 
> solution; Whenever I try to access our chameleon sites on our public 
> server, our browser goes through the proxy-server. For some reason, this 
> proxy gets extremely slow after a number of visits have been made. After 
> the proxy server is cleared (all cached documents gone), it's very fast 
> again. But within a few days, it's all clogged up. Unfortunately, one of 
> our clients seems to be experiencing similar problems; their proxy 
> server seems fed up with chameleon pages/images, because access to our 
> server is getting much slower.
> I think it is related to how the documents are cached. I am no expert at 
> all, but I suspect it uses a hashing algorithm, which degenerates to a 
> sequential search for URL's that are very similar and would return a 
> similar result from the hashing algorithm. Is that what's going wrong? 
> The problem shows up particularly for UpdateMap.php, after using 
> javascript to nagivate (without submitting the page, in CWC 1.0.4). 
> Each request to this file takes 4 seconds or more (on a LAN), making 
> javascript navigation slower than submitting.
> I got tags in my template to supposedly prevent caching:
> <meta http-equiv="pragma" content="no-cache">
> But no effect. I've also tried to put an extra random string as the 
> first parameter for UpdateMap.php (in case it hashes on the first part 
> of the url string), but it didn't have any effect at all.
> Has anyone else run into this, or does anyone know more about this? I'd 
> appreciate any tricks anyone can give me.
> regards,
> Jacob
> P.S. sorry about asking questions about the 'older' version, but I 
> haven't got javascript navigation working yet in 1.99.
> Maunsell Australia Pty Ltd
> 629 Newcastle Street, WA 6007
> PO Box 81, WA 6902
> Leederville
> Western Australia
> ABN 20 093 846 925
> Tel     + 61 8 9281 6185
> Fax    + 61 8 9281 6297
> jacob.delfos at maunsell.com <mailto:jacob.delfos at maunsell.com>
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