nagios silently stops

[Ton Voon]

On 31 Mar 2006, at 10:06, Vadim Korsak wrote:

> Nagios 2.1 have stopped some times. Last entry in log till it stops  
> - SERVICE FLAPPING ALERT:
>
> grep -B 1 "2.1 starting..." /var/log/nagios/nagios.log
> [1143723946] SERVICE FLAPPING ALERT: _net-n-liepaja-srv;DISK C:  
> free space;STARTED; Service appears to have started flapping (20.5%  
> change >= 20.0% threshold)
> [1143790405] Nagios 2.1 starting... (PID=6671)
> --
> [1143792340] SERVICE FLAPPING ALERT: _net-n-liepaja-srv;DISK C:  
> free space;STARTED; Service appears to have started flapping (21.1%  
> change >= 20.0% threshold)
> [1143792757] Nagios 2.1 starting... (PID=11656)
> --
> [1143793487] SERVICE FLAPPING ALERT: _net-n-liepaja-srv;DISK C:  
> free space;STARTED; Service appears to have started flapping (21.6%  
> change >= 20.0% threshold)
> [1143793561] Nagios 2.1 starting... (PID=24024)
> --
> [1143794252] SERVICE FLAPPING ALERT: _net-n-liepaja-gw;PING  
> gateway;STARTED; Service appears to have started flapping (24.2%  
> change >= 20.0% threshold)
> [1143794282] Nagios 2.1 starting... (PID=2723)
> --
> [1143795613] SERVICE FLAPPING ALERT: _net-n-liepaja-srv;DISK C:  
> free space;STARTED; Service appears to have started flapping (21.3%  
> change >= 20.0% threshold)
> [1143795722] Nagios 2.1 starting... (PID=27191)
>
> Nagios itself starts flapping ;)

Vadim,

Which platform are you running on? Which configure options did you  
build with?

When it happens again, can you send a pstree output (want to see if  
nagios has forked other processes - maybe hanging on an external  
command). For each nagios process, can you run an strace to see what  
bit of the code it is currently hanging on.

Ton


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