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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'>Keep us posted! You have a good real
world load with some decent horsepower behind it so it will be interesting to
see how your temporary changes you have planned in the next few days pan out…I
suspect the SOHO switches could be part of the problem.<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'>What is the load on the server? <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'>Bill<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>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Mitch Jackson<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, July 11, 2006 10:44
AM<br>
<b><span style='font-weight:bold'>To:</span></b>
asterisk-users@lists.digium.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] Server
Optimization and Load Balancing</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I'm hoping to get some guidance on some of our asterisk growing
pains. Any help is greatly appreciated.<br>
<br>
Over the last few months, our call center has grown considerably and we're now
experiencing choppy calls and dropped calls under full capacity. <br>
<br>
We have around a 60/40 outgoing to incoming ratio<br>
<br>
At the moment, we've got the following configuration:<br>
Asterisk SVN-trunk-r7230<br>
All calls recorded to disk<br>
External mysql server for CDR + IVR operations <br>
Dual Xeon 2.8 4GB Ram (Dell)<br>
Digium TE210P<br>
2 x PRI lines<br>
72 Ploycom 301P SIP phones using ulaw codec<br>
<br>
We have a second identical server ready to offset some of the load, but we're
not sure how to balance the sip phones and configuration files between the two
servers. If we balance the sip registrations between the two servers,
then there's the issues of both servers having to handle one call via IAX in
some situations. <br>
<br>
What kind of experiences, problems and solutions have y'all had when adding
servers to your center?<br>
<br>
Should we try to have incoming on one server and outgoing on the other?<br>
Should we have both servers capable of handling all the IVR operations, so the
other server doesn't have to? <br>
Should we try to have an identical configuration between both servers and load
balance?<br>
What kind of general optimizations should we look at to improve network /
server performance?<br>
Is there a way to easily register each phone with all asterisk servers, and
have the phone choose a random server to dial, and then be available as a SIP
to each server if it needs to contact it? <br>
Is it a bad idea to register all phones with each server instead of
distributing registration?<br>
<br>
-Here's some of the things we're got planned in the next few days:<br>
-Make sure we have all audio files in all codec formats to reduce the need for
transcoding in IVR <br>
-Convert all music on hold from mp3 to native codec formats<br>
-Reduce database operations from within extensions.conf<br>
-Upgrade switches on each set of desks to midrange enterprise 100MB switches
with gigabit uplinks, from <st1:place w:st="on">SOHO</st1:place> netgear 100MB
switches <br>
<br>
<br>
Thanks,<br>
<br>
/mitch<br>
/fidelity reserves<o:p></o:p></span></font></p>
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