[Xymon] rrd logs and graphs

[Vernon Everett]

Only back at that client again on Wednesday.
But I do have remote access, so will see what I can do this evening.


On 25 February 2015 at 18:06, Jeremy Laidman <jlaidman at rebel-it.com.au>
wrote:

> On 25 February 2015 at 19:16, Vernon Everett <everett.vernon at gmail.com>
> wrote:
>
>> These hosts all have nothing at all to do with the storage arrays being
>> monitored, which makes me think the client data might be a red herring.
>
>
> Yup, makes sense.
>
> My best guess is memory corruption within xymond.  So let's see if the
> corruption is visible in the messages being passed between xymond and
> xymond_channel.  If we see corrupt messages in there, we can start to delve
> into the source code to see if there's a bug somewhere.  Are you able to
> run your own instance of xymond_channel?  Maybe something like this:
>
> sudo -u xymon xymoncmd xymond_channel --channel=data --filter=zmem cat
>
> One you get an idea what it looks like, change "cat" for something like
> "egrep -A5 ^@" to get only the first 5 lines.  Also, redirect to a file
> until you notice a dodgy RRD file and then kill the process.
>
> Did you try running xymond with "--dbghost=HOSTNAME" ?  It might be too
> voluminous, but might be worth a try, if you can manage to snag the traffic
> at the right time.
>
> J
>
>


-- 
"Accept the challenges so that you can feel the exhilaration of victory"
- General George Patton
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