No Output

[Williard, Jason]

> -----Original Message-----
> From: Williard, Jason [mailto:Jason.Williard at chartercom.com]
> Sent: Monday, June 26, 2006 5:58 PM
> To: nagios-users at lists.sourceforge.net; Marc Powell
> Subject: RE: [Nagios-users] No Output
> 
> > -----Original Message-----
> > From: Williard, Jason [mailto:Jason.Williard at chartercom.com]
> > Sent: Monday, June 26, 2006 5:03 PM
> > To: Marc Powell; nagios-users at lists.sourceforge.net
> > Subject: RE: [Nagios-users] No Output
> >
> > HOSTS.CFG ENTRY
> > ----------------
> > define host{
> >         use     generic-hos
> >         host_name               22xx-WOR-905
> >         alias                   WOR 905 Tunnel 1
> >         address                 172.29.xxx.xxx
> >         parents                 KWA-Core-7206,MOR-7206
> >         check_command           check-host-alive
> >         max_check_attempts      10
> >         notification_interval   60
> >         notification_period     24x7
> >         notification_options    d,u,r
> >         contact_groups          field-admins
> >         }
> >
> > CHECKCOMMANDS.CFG ENTRY
> > ------------------------
> 
> Thanks. Looks good.
> >
> > TEST RUN
> > ---------
> > [root at web nagios]# /usr/lib/nagios/plugins/check_ping -H
> 172.29.xxx.xxx
> > -w 3000.0,80% -c 5000.0,100% -p 1
> > CRITICAL - Plugin timed out after 10 seconds
> 
> You should always perform your tests as the nagios user. Root can run
> commands that a normal user might not be able to (including ping) and
> you may see different output. In any event, the output above for this
> host looks good. Do you have the same check-host-alive command
specified
> for KWA-Core-7206 and MOR-7206? I am presuming that you can't ping
this
> host because one/both of those are down? How about the same kind of
test
> run for those two hosts. Also, try pinging them directly from the
> command line with /bin/ping -n -U -c 1 172.29.xxx.xxx.
> 
> Did you upgrade the plugins when you upgraded nagios? Were there any
> other system upgrades performed at the same time?
> 
> 
> 
> I ran the exact same test as the nagios user and got the same result:
> [root at vuo02web nagios]# su nagios
> sh-3.00$ /usr/lib/nagios/plugins/check_ping -H 172.29.248.75 -w
> 3000.0,80% -c 5000.0,100% -p 1
> CRITICAL - Plugin timed out after 10 seconds
> 
> 
> As for the KWA-Core-7206 & MOR-7206 sites; these are both UP and
> pingable.  I know that the two sites currently showing UNREACHABLE are
> down.  We can confirm this by looking at their tunnel status.
However,
> in previous versions of Nagios, it would show the site as DOWN rather
> than UNREACHABLE.

That should still be the case. Nagios determines down v.s. unreachable
by running the host check_command for the parents. If that returns down
then the initial host is unreachable, otherwise the host is just down. I
don't use host checks so I am unable to verify this myself but I haven't
heard of anyone else having the same issue. I've looked through checks.c
and the only place an UNREACHABLE status is assigned is here --



After seeing this last message from you, it finally hit me...  When I
first started up the new version, I had not installed the new plugins,
so check_ping did not exist.  This caused everything to show up as
UNREACHABLE, including the parent sites KWA-Core-7206 & MOR-7206.  I
deleted the log files and restarted Nagios, allowing it to go through
the initial discovery again.  This time, the two sites that are down
showed up as DOWN.  So now I know, if the parent site is down when the
site first goes down, it will show up as UNREACHABLE, even if the parent
site comes back up.

Thanks for all your assistance.  It probably would have taken much
longer for me to realize this mistake, had you not offered so much help.

Jason

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