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<h3><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D;font-weight:normal'>I have 7363 hosts being monitored in my
environment.<o:p></o:p></span></h3>
<h3>Tue Oct 4 10:05:58 2011<o:p></o:p></h3>
<pre>Statistics:<o:p></o:p></pre><pre> Hosts : 7363<o:p></o:p></pre>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>OS: SuSE Linux Enterprise v11.0<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I found network I/O a challenge, and had to set up a bbproxy
server and split the ping test over two Xymon servers, each server handling
about ˝ the load. Time spent on ping tests (on each server) is about 170 seconds. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Proxy
statistics<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Incoming
messages : 3332629 (48 msgs/second)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Outbound
messages : 1778658<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The disk i/o with this many hosts is also difficult – at least
on my hardware (IBM x225 server). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I also disabled [hostdata] in hobbitlaunch.cfg – my systems
could not keep up with the i/o.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I cut down on message traffic by using a the ‘ignore’
and ‘trigger’ capability of the logfile checker in<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>client-local.cfg, thereby filtering at the client; eg: <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>log:/var/log/daemon.log:4096<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ignore (upsd.*: Set variable|apcsmart.*enum |dhcpd:
|xinetd.*: |squid.*: |ntpd.*: |Connection from |logged out)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> trigger shutdown<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> xymon-bounces@xymon.com
[mailto:xymon-bounces@xymon.com] <b>On Behalf Of </b>Josh Luthman<br>
<b>Sent:</b> Tuesday, October 04, 2011 8:29 AM<br>
<b>To:</b> Gautier Begin<br>
<b>Cc:</b> xymon@xymon.com<br>
<b>Subject:</b> Re: [Xymon] Big Environment<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>I saw a ~7250 host quickly
scrolling through it<br>
<br>
<a
href="http://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The_Xymon_Users_list">http://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The_Xymon_Users_list</a><br>
<br clear=all>
Josh Luthman<br>
Office: 937-552-2340<br>
Direct: 937-552-2343<br>
1100 Wayne St<br>
Suite 1337<br>
Troy, OH 45373<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>On Tue, Oct 4, 2011 at 8:24 AM, Gautier Begin <<a
href="mailto:gbegin@csc.com">gbegin@csc.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>Hello,</span> <br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I'm planning to
use XYMON with a big amount of clients: 1000 and then 4000.</span> <br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Is it possible
?</span> <br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Are there some
tipps and limitations to know ?</span> <br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cordialement,
Regards,Mit freundlichen Grüßen,<br>
<br>
Gautier BEGIN<br>
<br>
Admin and Tools Team<br>
CSC Computer Sciences Luxembourg S.A.<br>
12D Impasse Drosbach<br>
L-1882 Luxembourg<br>
<br>
Global Outsourcing Service | p:<a href="tel:%2B352%2024%20834%20276"
target="_blank">+352 24 834 276</a> | m:<a href="tel:%2B352%20621%20229%20172"
target="_blank">+352 621 229 172</a> | <a href="mailto:gbegin@csc.com"
target="_blank">gbegin@csc.com</a> | </span><a href="http://www.csc.com"
target="_blank"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.csc.com</span></a><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
<br>
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