nsca - weird. (part 2)

[Jasmine Chua]

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I have tested what you have recommended me. To change the default to 120 
instead of 2 hours... for tcp_keepalive_time but things still do not work.I 
am still getting lots of nsca close_waits. 
My check execution time is currently : 0 / 80 / 2.955 sec
My check Latency: 415 / 936 / 655.136 sec

I have been trying to tweak the max_concurrent_checks and 
service_reaper_frequency already, but its all futile. Seems like my central 
monitoring server is running very slowly and not processing service checks 
fast enough. 

For my central monitoring server: 

 SERVICE SCHEDULING INFORMATION
        -------------------------------
        Total services:             143
        Total hosts:                21

        Command check interval:     -1 sec
        Check reaper interval:      30 sec

        Inter-check delay method:   SMART
        Average check interval:     93.566 sec
        Inter-check delay:          0.654 sec

        Interleave factor method:   SMART
        Average services per host:  6.810
        Service interleave factor:  7

        Initial service check scheduling info:
        --------------------------------------
        First scheduled check:      1039073446 -> Thu Dec  5 15:30:46 2002
        Last scheduled check:       1039073541 -> Thu Dec  5 15:32:21 2002

        Rough guidelines for max_concurrent_checks value:
        -------------------------------------------------
        Absolute minimum value:     46
        Recommend value:            138


Anyone help? 

On Thursday 05 December 2002 04:23, Carroll, Jim P [Contractor] wrote:
> If you're concerned about the close_waits and your server is Linux based,
> do this:
>
>   echo 120 > /proc/sys/net/ipv4/tcp_keepalive_time
>
> and add that to your rc.local as well.
>
> (By default, it's typically set to 7200, which is 2 hours, which might be
> considered excessive.)
>
> I don't know if this will guarantee immediate relief from your problem, but
> let us know if it does.
>
> jc
>
> > -----Original Message-----
> > From: Jasmine Chua [mailto:jasmine.chua at securecirt.com]
> > Sent: Wednesday, December 04, 2002 12:40 AM
> > To: nagios-users at lists.sourceforge.net
> > Subject: [Nagios-users] nsca - weird.
> >
> >
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> > Hi nagios users,
> >
> > In the background process I could see that nagios is
> > submiting results to our
> > central monitoring server... but, when i tried to execute the plugin
> > manually. I got a timeout.
> > libexec # ./submit_check_result xxx.xxx.xxx.xxx users 0
> > check-users-runaway
> > Error: Timeout after 10 seconds
> > On our central monitoring server, theres a lot of close_wait
> > sessions when i
> > do a netstat ..It is still receiving passive checks, but apparently..
> > something is still wrong.. could anyone tell me? Has this got
> > to do with
> > latency?
> >
> >
> > Jasmine Chua
> > Security Engineer, SecureCiRT (A SBU of Z-Vance Pte Ltd)
> > http://www.securecirt.com
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- -- 
Jasmine Chua
Security Engineer, SecureCiRT (A SBU of Z-Vance Pte Ltd)
http://www.securecirt.com
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