integrate rrdcached with mrtg

[Stuart Kendrick]

So what does it take to integrate rrdcached with MRTG?

 From a quick & dirty point of view, it seems to me that I could change line 854
(mrtg-2.16.2) as follows:

from
         if ( $RRDs::VERSION >= 1.2 ){
             $rrddata=RRDs::updatev($dotrrd, "$time:$inlast:$outlast");
         } else {
             RRDs::update($dotrrd, "$time:$inlast:$outlast");
         }

to

         if ( $RRDs::VERSION >= 1.2 ){
             $rrddata=RRDs::updatev($dotrrd, "--daemon
unix:/tmp/rrdcached.sock", "$time:$inlast:$outlast");
         } else {
             RRDs::update($dotrrd, "$time:$inlast:$outlast");
         }

Is it this easy?  Or am I totally missing how hard this is?

--sk

Stuart Kendrick
FHCRC

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[JL mrtg]

Hi

I use RRDCACHED_ADDRESS environment variable:
  export  RRDCACHED_ADDRESS=127.0.0.1

I run rrdcached as:
  rrdcached -l 127.0.0.1 <more params>

but when I run mrtg I get:
  ERROR: Cannot update file.rrd with '1257937902:14296586674:19866901102' The "RRDCACHED_ADDRESS" environment variable is defined, but "dummy" cannot work with rrdcached. Either unset the environment variable or use "update" instead

:(

Stuart Kendrick wrote:

So what does it take to integrate rrdcached with MRTG?

 From a quick & dirty point of view, it seems to me that I could change line 854
(mrtg-2.16.2) as follows:

from
         if ( $RRDs::VERSION >= 1.2 ){
             $rrddata=RRDs::updatev($dotrrd, "$time:$inlast:$outlast");
         } else {
             RRDs::update($dotrrd, "$time:$inlast:$outlast");
         }

to

         if ( $RRDs::VERSION >= 1.2 ){
             $rrddata=RRDs::updatev($dotrrd, "--daemon
unix:/tmp/rrdcached.sock", "$time:$inlast:$outlast");
         } else {
             RRDs::update($dotrrd, "$time:$inlast:$outlast");
         }

Is it this easy?  Or am I totally missing how hard this is?

--sk

Stuart Kendrick
FHCRC

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