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<p class=MsoNormal>I’ve successfully managed to set up a fully
decentralised MRTG/RRD/Routers2 system, using rrdcached and the patched
versions of RRDTool 1.4.999, MRTG 2.16.4 and Routers2 v2.22beta1. I’ve
just done a successful test of the Routers2 frontend to view a remote RRD file
which is being updated remotely for a third location.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This has the RRD databases, MRTG daemon, and Routers2 web
frontend all on separate servers, communicating via the rrdcached TCP protocol.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The exciting part of this is that, when/if the MRTG and
RRDTool patches make it into the release, it will be possible to expand an MRTG
installation horizontally without having to use handover between multiple
frontends; applications like Weathermap and SWFGauge will have all the RRD
files located together; and there is at last a standard generic interface for
remote RRD interaction.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’ll be demoing this at LISA10, although to be honest to
the user nothing looks different; all the changes are behind the scenes.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>At the moment, none of these patches are released; I’ve
passed to Tobi a patch for MRTG to support rrdcached via unix-domain sockets, and
a patch to rrdtool-trunk for full feature support but it will take time before
they make it into the development snapshots and longer until they make it into the
release. The changes to routers2 will be released in beta before LISA10
but v2.22 won’t come out until there are sufficient changes and testing
(maybe after MRG 2.16.5?)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Anyone wanting to play with this for themselves please contact
me and I’ll give you a copy of the patched MRTG and RRDTool sources, plus
routers2 v2.22beta1<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Steve<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal><b>Steve Shipway<o:p></o:p></b></p>
<p class=MsoNormal><span style='font-size:10.0pt'>steve@steveshipway.org<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:#595959'>Routers2.cgi
web frontend for MRTG/RRD; NagEventLog Nagios agent for Windows Event Log
monitoring; check_vmware plugin for VMWare monitoring in Nagios and MRTG; and
other Open Source projects.<o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:10.0pt'>Web: <a
href="http://www.steveshipway.org/software">http://www.steveshipway.org/software</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:18.0pt;font-family:Webdings;
color:green'>P</span><span lang=EN-GB style='color:blue'> </span><span
lang=EN-GB style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";
color:green'>Please consider the environment before printing this e-mail</span><span
lang=EN-GB style='color:blue'> </span><span lang=EN-GB style='font-size:7.5pt;
font-family:"Verdana","sans-serif";color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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