RFC Proof of concept patch: Restarting embedded Perl Nagios.

[Andreas Ericsson]

Stanley Hopcroft wrote:
> Dear Sir,
> 
> I am writing to thank you for your letter and say,
> 
> On Wed, Oct 20, 2004 at 09:01:28PM -0500, Ethan Galstad wrote:
> 
>>Following up on an old post that needs addressing...
>>
>>The info from the Perl docs you provided earlier state that lost 
>>memory can only be freed by stopping the process. 
> 
> 
> Agreed.
> 
> 
>>Rather than 
>>including this functionality in Nagios (which would be a bit kludgy), 
>>I would recommend another approach (which is still hackish, but 
>>better IMO)...
>>
> 
> 
>         
> 
>>Use cron to periodically run a script that calls the check_vsz plugin 
>>to determine the memory usage of the Nagios daemon.  If the plugin 
>>returns a critical state, restart Nagios using the init script.  
>>Simple, but effective.
>>
>>
> 
> 
> Yes, this is a much better way (even periodic restarts from cron without
> checking mem use would be sufficient).
> 

Umm.. How about the old-fashioned and cleaner way, using vfork(2) and 
execve(2)?

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


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