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<H1>[Mageia-webteam] Forum VM needs</H1>
<B>Dubeau, Patrick</B>
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TITLE="[Mageia-webteam] Forum VM needs">Patrick.Dubeau at ccq.org
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<I>Wed Jan 12 22:02:04 CET 2011</I>
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<PRE>><i> Hi there,
</I>><i>
</I>><i> As it seems VM creation takes a little bit of time due to people being
</I>><i> under heavy load at work Anne and misc considered the option of
</I>><i> creation the Xen VM on one of our servers (we could migrate the VM on
</I>><i> atalante later)
</I>><i>
</I>><i> For that misc asked for Forum needs...
</I>><i>
</I>><i> For the beginning i'll consider that we are going to put everything on
</I>><i> the same machine (DB and PHP). This is not rally brilliant to
</I>><i> virtualize DB servers but i guess this will not kill the VM in the
</I>><i> first monthes as the tables will not be big.
</I>><i>
</I>><i> So phpBB needs a LAMP Stack : Apache + PHP5 + MysSQL5 (it prefers to
</I>><i> have MySQLi extention)
</I>><i>
</I>><i> And we'll need with php the optional :
</I>><i> -- zlib compression (better having it)
</I>><i> -- remote ftp support (well... i'm not in favor even if documentation
</I>><i> asks for it)
</I>><i> -- XML support (better having it)
</I>><i> -- Image Magick support (better having it)
</I>><i> -- GD support (same as Image magick)
</I>><i>
</I>><i> For source management git will be used... so we'll need it too :)
</I>><i>
</I>><i> As forum have often to face bruteforce having Fail2ban would be really
</I>><i> great... for every open service like ssh but also for forums... i'd
</I>><i> like to have Fail2ban parse a file of phpBB failed login to trigger a
</I>><i> IP low level ban during a few hours or more...
</I>><i>
</I>><i>
</I>><i> For forum management we'll need :
</I>><i> -- access to sources (read/write)
</I>><i> -- access to data zones (avatars and uploaded things) (read/write)
</I>><i> -- access to accesslogs and errorlogs (read)
</I>><i> -- hability to change php log levels
</I>><i> -- access to php logs (read)
</I>><i> -- console access to database(s) (i'd prefer to avoid completely
</I>><i> phpMyadmin on the forum server)
</I>><i>
</I>><i> For performance questions : i guess forum opening will trigger a rather
</I>><i> vast amount of people coming (at least to register their nicks)... i'd
</I>><i> be happy to avoid the server being loaded to death.
</I>><i>
</I>><i> So i'm targetting at least one thousand simultaneous users being active
</I>><i> on the forum... that will do for apache tuning.
</I>><i>
</I>><i> For database that will mean 800 to 1200 requests per seconds...
</I>><i>
</I>><i> We'll have 2 - 3 monthes to see the tables grow and tune the indexes
</I>><i> and the memory accordingly.
</I>><i>
</I>><i> But i think our needs will stabilize around 4-6 GO for RAM if the forum
</I>><i> gets really used (we'll have to tune mysql to keep many requests in
</I>><i> cache) apache+mysql all included... if we split later apache and mysql
</I>><i> on separate machines the needs on each machine will be obviously lower.
</I>><i>
</I>><i> For app disk space code is under 50 megs... and with hundred of avatars
</I>><i> uploader we will not grow above 1GO
</I>><i>
</I>><i> For database disk space even after years of activity we'll remain under
</I>><i> 5GO
</I>><i>
</I>><i> We'll need to set up some tables with havy read and write accesses with
</I>><i> InnoDB (not all) : that would be great to have one file per table
</I>><i> innodb option enabled
</I>><i>
</I>><i> Nota : i'd like to use https (at least for admin accesses)... so that
</I>><i> will mean to enable ssl and open 443 port also
</I>><i>
</I>><i> That's all for system level... i think directory structures (Which
</I>><i> concerns apache web root config) can be dealt with later...
</I>><i>
</I>><i> Tell me if you have got everything you need for VM creation...
</I>><i>
</I>><i> Cheers,
</I>><i>
</I>><i> Maât
</I>
Hi Maat,
I am sincerely happy you suggest it. It could ease and speed things up a
little. xkomodor and I are under pretty heavy load of work right now and for
myself I also have technical issues in installing and connecting to the vms
right now and don't have enough time to spare on it as I would like to. Sorry
for the inconveniences...
Patrick Dubeau (alias DaaX) - Webmaster MLO
<A HREF="http://www.mandrivalinux-online.org">http://www.mandrivalinux-online.org</A>
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