On Tue, Oct 6, 2009 at 9:57 AM, Anthony Luscre <[email protected]> wrote:
>
> As we start the school year the Internet access has been painfully slow on
> our 3 LTSP setups (1- Fedora 9, 1 Fedora 11 and 1 Edubuntu 9)
> Firefox continuously hangs or will not load saying it has already loaded.

This is a known problem. It occurs if you run FF 3.5 and improperly
shutdown (ie hard reset)
A solution is to delete 2 files
places.sqlite
/places.sqlite-journal

http://kb.mozillazine.org/Locked_or_damaged_places.sqlite

you can find them like this
$find /home/username/.mozilla -name '*places*'

Be warned you will lose bookmarks if you do this!!

> HELP, if I cannot improve performance in the next few weeks, the teacher's
> protests will force me to abandon all LTSP at our district!

Use Opera. It is fast.

>
> 1. I have tried setting FireFox to run as a Local App on clients but I am
> not sure if they are in fact running locally. Is there a way to tell for
> sure?

run it on a client under user ABC. Then on the server

ps -U ABC | grep firefox

if nothing comes up then it's local. If it does then it's not local.

>
> 2. I have tried tweaking FireFox's about:config settings. The problem is I
> do not know how to change the about:config settings on all 400 user accounts
> at our HS or 60 lab accounts at elementary. Does anyone know of a way to
> "push" out these FireFox changes to existing accounts?

This is possible. Search this list. It has come up many times before.
I think it was a .js file somewhere in
/usr/lib/firefox-x.xx/defaults

>
> 3. Are there any other potential software or services that I can delete,
> stop or tweak for better performance?
>
> 4. Can fat clients help my situation?

Only if they have 512MB (128 and even 256 is not really enough). I am
using DRBL and I like it but my clients are brand new.

>
> My Server Hardware is dual Quad core processors with 8 to 13 Gig of RAM.
> Clients are diskless Dell GX-240's with 128 to 256 MB of RAM



-- 
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada

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