Nagios - Nsca - OCSP command Timedout

[Sumit malhotra]

--- Marc Powell <marc at ena.com> wrote:
Hello Marc,

> 
> 
> > -----Original Message-----
> > From: nagios-users-bounces at lists.sourceforge.net
> [mailto:nagios-users-
> > bounces at lists.sourceforge.net] On Behalf Of Sumit
> malhotra
> > Sent: Tuesday, July 18, 2006 12:26 PM
> > To: nagios-users at lists.sourceforge.net
> > Subject: [Nagios-users] Nagios - Nsca - OCSP
> command Timedout
> > 
> > Hello,
> > 
> > I  am using Nagios in a distributed environment
> where
> > many systems report to a central nagios server via
> > NSCA.
> > 
> > Many a times  the nsca command(ocsp and oshp
> command)
> > times out due to low response time from remote
> nsca.
> > 
> > As the results submiteed by remote client are not
> > received, it causes an alert to be generated.
> > (I am using nsca -server in inetd mode.)
> > 
> > 
> > I have few questions:
> > 
> > 1. Is it possible to set up NSCA -server so that
> it
> > doesn't time out ? What's the deterministic
> parameter?
> > is it RAM ? CPU? or NETWORK CHOKING.
> 
> I'd check your inetd config. Are you allowing
> sufficient connections and
> rate limits for your environment?
Here is the xinetd configurations
service nsca
{
        flags           = REUSE
        socket_type     = stream
        wait            = no
        user            = nagios
        group           = nagios
        server          = /usr/sbin/nsca
        server_args     = -c /etc/nsca.cfg --inetd
        log_on_failure  += USERID
        instances       = 200
        disable         = no
}

Also, sometimes nsca goes in adefunct state. I have no
clue why ?


 3054 ?        Rs     0:01 /usr/sbin/xinetd -pidfile
/var/run/xinetd.pid -stayalive
21552 ?        Zs     0:00  \_ [nsca] <defunct>
21553 ?        Zs     0:00  \_ [nsca] <defunct>
21554 ?        Zs     0:00  \_ [nsca] <defunct>
21555 ?        Ss     0:00  \_ nsca -c /etc/nsca.cfg
--inetd
21556 ?        Ss     0:00  \_ nsca -c /etc/nsca.cfg
--inetd

nsca.cfg 
-------------
server_port=5667
server_address=x.x.x.x
nsca_user=nagios
nsca_group=nagios
debug=0
command_file=/var/lib/nagios2/rw/nagios.cmd
aggregate_writes=0
append_to_file=0
max_packet_age=30
password=xxxxxxxxx
decryption_method=1




>  
> > In Normal scenarios I have  90% RAM as free
> > Average System Load is  1.5
> > Network of 10MB is available. with only 100 odd
> hosts
> > to report to ( It's not getting choked either)
> > 
> > 2. Is it possbile to retry sending  in 15 seconds
> if
> > the ochp/ocsp command has timed out ?
> 
> Yes, you could always modify your
> submit_check_result script to take
> that into account. Nagios doesn't have that
> capability itself. The
> proper fix however is to determine why the timeouts
> are occurring. I'm
> able to process 3648 passive checks via NSCA every 5
> minutes running
> NSCA as a standalone daemon. That's why I believe
> you may need to look
> at your (x)inetd.conf.
> 
> --
> Marc
> 
>
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