[Xymon] integration of foreign graphs

[cleaver at terabithia.org]

> jc's pointer i didn't understand it .. :-(
> perhaps do you mean the option --extra-script for xymond_rrd ?
>
> Thanks a lot & cheers
>
>  	martin

Yep. It can be used to intercept the data rrd is about to send off to
rrdtool and send it to something else as well. I had a small script that
converted lines from (say) disk utilization to relevant OpenTSDB metrics.

-jc


>
>
> On Wed, 20 Jun 2012, cleaver at terabithia.org wrote:
>
>> Xymond_rrd also has an option for an "external processor", which you can
>> use to inject metrics data elsewhere as well. I was inserting directly
>> into an OpenTSDB instance for a while using that and it worked fine.
>>
>> -jc
>>
>>
>>> If you need to deal directly with the rrd's, then David's response has
>>> you
>>> covered nicely.
>>>
>>> If you don't need to deal with the rrd's directly, i.e. you have images
>>> already (png) or a UI for accessing the graphs (Cacti), then another
>>> approach *might* be easier. YMMV, of course. We use Cacti for our
>>> graphing
>>> needs and incorporate those graph(s) into Xymon via an updated
>>> "svcstatus.sh" cgi script. There is a config file that we have created
>>> to
>>> hold the "mapping" info:
>>>
>>> ~xymon/server/etc/cacti.cfg
>>> ---------------------------
>>> host1.cpu:2345
>>> host1.disk:745
>>>
>>> host2.cpu:13
>>> host2.disk:456
>>> host2.disk:457
>>> host2.disk:458
>>> etc.
>>> etc.
>>>
>>> where, above, the host and service are clear and are mapped to the
>>> local_graph_id in Cacti. The other side of the ":" could be anything
>>> though, as you will see. Assuming you are using the xymon dynamic
>>> status
>>> page setup, when you go to a particular status page in xymon you can
>>> see
>>> the host and service in the URL as parameters passed to svcstatus.sh. I
>>> have updated the svcstatus.sh to use the above config file to add a
>>> link
>>> into the displayed xymon page based on those parameters:
>>>
>>> ~xymon/cgi-bin/svcstatus.sh
>>> ---------------------------
>>> #!/usr/bin/bash
>>>
>>> # This is a wrapper for the Xymon svcstatus.cgi script
>>>
>>> . /usr/xymon/server/etc/cgioptions.cfg
>>>
>>> # Get HOST and SERVICE
>>> export `echo $QUERY_STRING | sed -e "s/\&.*$//"`
>>> export `echo $QUERY_STRING | sed -e "s/^[^\&]*\&//"`
>>>
>>> for i in `cat /usr/xymon/server/etc/cacti.cfg | grep "$HOST\.$SERVICE"
>>> |
>>> awk -F: '{ print $2 }'`; do
>>>
>>>    # Just appends multiple links/images/whatever to a temp file so you
>>> can
>>> get multiple images/graphs on the same page
>>>    echo -n "<\/TD><\/TR><\/TABLE><TABLE><TR><TD align=center><a
>>> href='http:\/\/our.cacti.host\/cacti\/graph.php?local_graph_id=$i\&rra_id=all'
>>> target='_blank'><img
>>> src='http:\/\/our.cacti.host\/cacti\/graph_image.php?local_graph_id=$i\&rra_id=1'
>>> border=0><\/a>" >> /tmp/cactigraph.$$
>>> done
>>>
>>> # Get the temp file contents into a env variable for easy regexp use
>>> below
>>> if [ -r /tmp/cactigraph.$$ ] ; then
>>>    CACTI=`cat /tmp/cactigraph.$$`
>>> else
>>>    CACTI=""
>>> fi
>>> rm -f /tmp/cactigraph.$$
>>>
>>> # Insert the links in the output of the status page for display
>>> if [ ! -z "$CACTI" ] ; then
>>>    exec /usr/xymon/server/bin/svcstatus.cgi $CGI_SVC_OPTS | sed -e
>>> "s/<PRE>/$CACTI<PRE>/"
>>> else
>>>    exec /usr/xymon/server/bin/svcstatus.cgi $CGI_SVC_OPTS
>>> fi
>>>
>>>
>>> You can really make that link anything you need; for us it is a call to
>>> cacti using the local_graph_id but for an existing png you could make
>>> the
>>> other side of the ":" in the config file the png filename and just use
>>> a
>>> straight <img> tag. Hope this helps.
>>>
>>> --
>>> Mark L. Hinkle
>>> hinkman at hinkman.com
>>>
>>>
>>> _______________________________________________
>>> Xymon mailing list
>>> Xymon at xymon.com
>>> http://lists.xymon.com/mailman/listinfo/xymon
>>>
>>
>>
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