<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
<html><body>
<p>Hello</p>
<p>In our company, we got ~10 000 devices split into 10 countries :</p>
<p>19 hobbit clusters in total. (1 hobbit cluster in each Datacenter).</p>
<p>we use bbproxy to report to one single hobbit cluster (central):</p>
<h3>Wed Oct 5 07:37:25 2011</h3>
<p>Statistics: Hosts total : 10866</p>
<pre>Incoming messages/sec : 478 (average last 300 seconds)<br /><br /></pre>
<p>The maximum of hosts for a local hobbit cluster is 3655 :</p>
<p> </p>
<p>Here the stat of this local cluster :</p>
<pre>Statistics:
Hosts total : 3655
Hosts with no tests : 60
Total test count : 9809
Status messages : 10151
Alert status msgs : 0
Transmissions : 326<br /><br /></pre>
<pre>TCP test statistics:
# TCP tests total : 6214
# HTTP tests : 2342
# Simple TCP tests : 3872
# Connection attempts : 6214
# bytes written : 396441
# bytes read : 24395876<br /><br /></pre>
<pre>TCP tests completed 134011.876173 30.657820
PING test completed (3650 hosts) 134012.458682 0.582508 </pre>
<pre>TIME TOTAL 44.107030 <br /><br /></pre>
<pre>Incoming messages/sec : 173 (average last 300 seconds)<br /><br /></pre>
<pre>The hardware is a cluster of 2 HP DL360 G7 with 4 SSD drives in raid5 for /opt/xymon/data.<br /><br />We chose SSD for I/O performances.<br /><br /><br /> load average: 0.74, 0.84, 0.82<br /><br />We use heartbeat for VIP and DRBD for replication.<br /><br />We didnt disabled hostdata but maybe we should do (we have a couple of scripts to clean up the hostdata, histfiles, etc).<br /><br />On the local cluster<br />/dev/drbd0 34078720 11545129 22533591 34% /opt/xymon/data<br />/dev/drbd0 122G 69G 47G 60% /opt/xymon/data<br /><br />-> 11 millions of files<br /><br /><br />On the central cluster<br />/dev/drbd0 89522176 77497570 12024606 87% /opt/hobbit/data<br />/dev/drbd0 673G 458G 181G 72% /opt/hobbit/data<br /><br />-> 77 millions of files<br /><br />it becomes high.<br /><br />sometimes we experienced ASR on hobbit servers :/<br /><br />Cheers<br />Nico<br /><br /><br /><br /></pre>
<p> </p>
<p> </p>
<p>On Tue, 4 Oct 2011 10:12:57 -0400, Brand, Thomas R. wrote:</p>
<blockquote type="cite" style="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px; width:100%"><!-- html ignored --><!-- head ignored --><!-- meta ignored --><!-- meta ignored -->
<div class="WordSection1">
<h3><span style="font-size: 11.0pt; color: #1f497d; font-weight: normal;">I have 7363 hosts being monitored in my environment.<!-- o ignored --></span></h3>
<h3>Tue Oct 4 10:05:58 2011<!-- o ignored --></h3>
<pre>Statistics:<!-- o ignored --></pre>
<pre> Hosts : 7363<!-- o ignored --></pre>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">OS: SuSE Linux Enterprise v11.0<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; 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 ½ the load. Time spent on ping tests (on each server) is about 170 seconds. <!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt;">Proxy statistics<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt;">Incoming messages : 3332629 (48 msgs/second)<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt;">Outbound messages : 1778658<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">The disk i/o with this many hosts is also difficult – at least on my hardware (IBM x225 server). <!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">I also disabled [hostdata] in hobbitlaunch.cfg – my systems could not keep up with the i/o.<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">I cut down on message traffic by using a the ‘ignore’ and ‘trigger’ capability of the logfile checker in<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">client-local.cfg, thereby filtering at the client; eg: <!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;">log:/var/log/daemon.log:4096<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"> ignore (upsd.*: Set variable|apcsmart.*enum |dhcpd: |xinetd.*: |squid.*: |ntpd.*: |Connection from |logged out)<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"> trigger shutdown<!-- o ignored --></span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<p class="MsoNormal"><span style="font-size: 11.0pt; color: #1f497d;"><!-- o ignored --> </span></p>
<div style="border: none; border-top: solid #B5C4DF 1.0pt; padding: 3.0pt 0in 0in 0in;">
<p class="MsoNormal"><strong><span style="font-size: 10.0pt;">From:</span></strong><span style="font-size: 10.0pt;"> xymon-bounces@xymon.com [mailto:xymon-bounces@xymon.com] <strong>On Behalf Of </strong>Josh Luthman<br /><strong>Sent:</strong> Tuesday, October 04, 2011 8:29 AM<br /><strong>To:</strong> Gautier Begin<br /><strong>Cc:</strong> xymon@xymon.com<br /><strong>Subject:</strong> Re: [Xymon] Big Environment<!-- o ignored --></span></p>
</div>
<p class="MsoNormal"><!-- o ignored --> </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 ignored --></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 ignored --></p>
<p class="MsoNormal" style="margin-bottom: 12.0pt;"><span style="font-size: 10.0pt;">Hello,</span> <br /><br /><span style="font-size: 10.0pt;">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;">Is it possible ?</span> <br /><span style="font-size: 10.0pt;">Are there some tipps and limitations to know ?</span> <br /><br /><span style="font-size: 10.0pt;">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>+352 24 834 276</a> | m:<a>+352 621 229 172</a> | <a href="mailto:gbegin@csc.com">gbegin@csc.com</a> | </span><a href="http://www.csc.com"><span style="font-size: 10.0pt;">www.csc.com</span></a><span style="font-size: 10.0pt;"><br /><br /><br /> CSC • This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind CSC to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose<br /> • <br /> CSC Computer Sciences SAS • Registered Office: Immeuble Le Balzac, 10 Place des Vosges, 92072 Paris La Défense Cedex, France • Registered in France: RCS Nanterre B 315 268 664</span> <br /> _______________________________________________<br /> Xymon mailing list<br /><a href="mailto:Xymon@xymon.com">Xymon@xymon.com</a><br /><a href="http://lists.xymon.com/mailman/listinfo/xymon">http://lists.xymon.com/mailman/listinfo/xymon</a><!-- o ignored --></p>
</div>
<p class="MsoNormal"><!-- o ignored --> </p>
</div>
</blockquote>
<p> </p>
<div> </div>
</body></html>