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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jabber can handle 3000 concurrent users
with no problem.<span style='mso-spacerun:yes'> </span>The only problem you
will have is that the <span class=GramE>select(</span>) function in Linux is
hard coded to a certain number of sockets.<span style='mso-spacerun:yes'>
</span>In kernel 2.4 that limit is 1024.<span style='mso-spacerun:yes'>
</span>You can either recompile the kernel to allow more, or you can use dpsm
or jpolld as your socket manager.<span style='mso-spacerun:yes'> </span>These
socket managers use the <span class=GramE>poll(</span>) function instead of
select() and are not subject to the limit.<span style='mso-spacerun:yes'>
</span>You will however have to increase the number of file descriptors you can
have open per process.<span style='mso-spacerun:yes'> </span>This can be done
in a startup script that calls ulimit.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jason Reineri<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:PersonName><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Northridge</span></font></st1:PersonName><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> Systems, Inc.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Rodrigo Roman
[mailto:dedalo@ferengi.com.ar] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, January 09, 2002
6:14 PM<br>
<b><span style='font-weight:bold'>To:</span></b> 'jdev@jabber.org'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [JDEV] Scale of server</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p style='margin-left:.5in'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>I'm planing an instalation of jabber server in a isp,
we have aprox 3000 concurrent users (i dont know wich porcentage will use our
messanger) our client base is 150k users.</span></font><o:p></o:p></p>
<p style='margin-left:.5in'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>Wich is the best implementation for this numbers?</span></font>
<br>
<font size=2><span style='font-size:10.0pt'>Is jabber prepared for this?</span></font>
<br>
<font size=2><span style='font-size:10.0pt'>Are all the transports able to work
in this client base?</span></font> <o:p></o:p></p>
<p style='margin-left:.5in'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>Thanks for your help!</span></font> <o:p></o:p></p>
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