Nagios just stopped running

[Andreas Ericsson]

Rimbert Rivera wrote:
> I have a cron job that runs the check_nagios plugin and e-mails us
> the output.  Earlier today, we started getting: "Nagios problem:
> located 3 processes, status log updated 1565 seconds ago"
> 
> Everytime it ran, it was the same output with a longer time that it
> wasn't updated.  This was working fine before where the status log
> would be updated usually no longer than 8 seconds ago.  I checked the
> status.log and status.sav and confirmed that they hadn't updated.  I
> restarted nagios but I still had the same problem.  Even though none
> of the partitions were running out of space, I deleted archived logs
> and restarted nagios but same problem.  I did some more
> troubleshooting without any luck.  Long story short, I rebooted the
> RH9 box it was running on and nagios started running again.
> 
> Anyone have an idea of what could've happened and things I could
> check?

What version of nagios are you running? Nagios 1.x sometimes had trouble 
with several processes running (the init-script is a bit flawed, so it 
won't detect it). The fact that things started working when you rebooted 
the server seems to indicate that this is what actually happened.

>  This is the first time this has ever happened as far as I
> know.  The recent changes we made were just setting up one new host
> to monitor so we edited hosts.cfg, hostgroups.cfg and services.cfg
> but nagios restarted without error.  I even took out those changes
> and restarted nagios but still had the same problem.  One thing I
> noticed was our service-perfdata.out is 790 MB.  Can I delete this
> and nagios will create a new one?  I'm not sure it's the problem
> since it's still that big and nagios is running now but it doesn't
> seem like I want that file to get that big.
> 
> What kind of maintenance should I be performing on nagios?  We've had
> it running for over a year and we haven't really did any kind of
> cleanup on it.
> 
> Your help to this newbie would be greatly appreciated.
> 

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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