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<p class=MsoNormal>I&#8217;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.&nbsp; I&#8217;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>&nbsp;</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>&nbsp;</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>&nbsp;</o:p></p>

<p class=MsoNormal>I&#8217;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>&nbsp;</o:p></p>

<p class=MsoNormal>At the moment, none of these patches are released; I&#8217;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.&nbsp; The changes to routers2 will be released in beta before LISA10
but v2.22 won&#8217;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>&nbsp;</o:p></p>

<p class=MsoNormal>Anyone wanting to play with this for themselves please contact
me and I&#8217;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>&nbsp;</o:p></p>

<p class=MsoNormal>Steve<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>

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<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>&nbsp;</o:p></span></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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