[hobbit] Users / Procs Graphing problem

[Rowell, Mike]

Henrik,

Thanks for this, the data is actually coming via my own modified client, the
data is correct before anyone asks.  What I've done is taken the Nagios
client as we have extensive nagios monitoring, added a couple of new checks
to it and written an ext script that connects to the specified servers, runs
the new checks and then sticks the data into Hobbit.

We have multiple environments some firewalls some not etc etc so it's the
best allround solution I could come up with.

I'll pull the data at the client side and see if I can tell whats going
wrong.

Regards

Mike Rowell 

-----Original Message-----
From: Henrik Stoerner [mailto:henrik at hswn.dk] 
Sent: 01 February 2006 13:02
To: hobbit at hswn.dk
Subject: Re: [hobbit] Users / Procs Graphing problem

On Wed, Feb 01, 2006 at 12:27:48PM -0000, Rowell, Mike wrote:
> I'm building some monitoring solutions at a place I'm working and 
> during this have noticed an issue with one of the rrd graphs that I 
> can't figure out.. Everyday at a specific time (different for each 
> system) there is a 10minute gap in the graph, I've done an rrd dump on 
> the data and it's appearing as a NaN entry.

This means that no data was being fed into the RRD file for 10-15 minutes.

> This is only effecting the users / procs graph, anyone got any ideas?

Could it be that you are rebooting these servers once a day ?
(I know, Unix folks rarely do that - but just in case).

Is this with the Hobbit client, or the BB client reporting data ?

Since it always happens on the same time for a given server, it would be
interesting to see what messages are fed into Hobbit around that time.
If you are running the Hobbit client, could you setup a cron job to fetch
the client data around that time ? It should run something like

   wget http://hobbitserver/cgi-bin/bb-hostsvc.sh?CLIENT=bad.client.name

and store the output in a file where you can look at it later. Best thing
would be if you could run this every minute for 15 minutes around the time
this problem occurs.

If you are running the BB client, the interesting part is the "cpu"
column data that is sent around that time. So something similar, except that
the URL you should fetch is

http://hobbitserver/cgi-bin/bb-hostsvc.sh?HOSTSVC=bad,client,name.cpu


Regards,
Henrik


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