AW: [opencms-dev] Scalability of OpenCms

[Mark Miller]

Something like that would be extremely interesting in the handbook.
 
Could you send me the info … or you could add it to the handbook
project.
 
Would be cool in a chapter on it’s own I think … let me know what you
think
 
 
All the best,
 
 
Mark
 
 
-----Ursprüngliche Nachricht-----
Von: opencms-dev-admin at opencms.org
[mailto:opencms-dev-admin at opencms.org] Im Auftrag von Ivan Biddles
Gesendet: 18 May 2004 07:23
An: opencms-dev at opencms.org
Betreff: [opencms-dev] Scalability of OpenCms
 
Hi,
 
If anyone has any questions about the scalability of OpenCms, we have an
installation with over 25,000 directories and the run-time system
performs excellently for hundreds of thousands of pages and a hundred or
so different sites all on one instance.
 
However, this size of installation does have some problems on the
authoring side. The time taken to lock a file, for example, with
Netscape is about 30 seconds. With Internet Explorer it is a whopping
two and a half minutes. (All operations that result in the right hand
explorer panel being redrawn all take about the same length of time.-
lock, unlock, return from the edit window, return from the Admin pages,
etc.)
 
Having used packet sniffers I find that all the data is returned from
the server in about two seconds. The rest of the time is spent in the
browser running Javascript to render the page with the cpu load at 100%.
The right-hand panel html is all Javascript with the majority of it
being one Javascript function call for each of the 25,000 folders.
 
This is not a complaint posting. Far from it -  I want readers to see
just how big a system OpenCms can support, and to get a little advice.
 
I have customized OpenCms heavily to support hundreds of sites running
from the same OpenCms instance and so it would take an effort on my part
to upgrade from the 5.0 RC1 base that I’m using. However, have there
been advances in the client-side explorer window code that might speed
up things? If so I will certainly take the time to do so. Any other
ideas would be appreciated too.
 
Some more information is that I can’t easily separate the system into
multiple authoring instances because of the sharing of pages and page
elements. I tried projects but although a project may only have a few
hundred folders, it still displays the entire tree.
 
If the OpenCms team is interested I have a fairly detailed analysis of
what is going on with this size of system.
 
Best wishes, Ivan

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