Problems with many hanging Nagios processes (Nagios spawning rogue nagios processes eventually crashing Nagios server)

[Ethan Galstad]

Thomas Guyot-Sionnest wrote:
>> From: nagios-devel-bounces at lists.sourceforge.net 
>> [mailto:nagios-devel-bounces at lists.sourceforge.net] On Behalf 
>> Of Ethan Galstad
>> Sent: December 21, 2006 11:57
>> To: Nagios-Devel
>> Subject: Re: [Nagios-devel] Problems with many hanging Nagios 
>> processes (Nagios spawning rogue nagios processes eventually 
>> crashing Nagios server)
>>
>> Good work on nailing down the problem to the command buffer slots! 
>> Sounds like this problem might affect a number of users, so I 
>> think we 
>> need to patch Nagios. There are two possible solutions:
>>
> 
> Ethan,
> 
> Do you think this bug could be the cause of my issue where I loose passive
> check results under load / when many passive checks comes in at the same
> time?
> 
> Thanks,
> 
> Thomas
> 

Hi Thomas - I think I must have missed your original problem description 
in the mass of emails that I've been behind on. :-)  I guess you'd have 
to test the new code to see if that fixes your problem for sure.

If I'm correct, you shouldn't loose passive checks under heavy load 
conditions unless you exhaust physical memory and something like the 
infamous OOM killer starts killing processes.  Under normal situations, 
passive checks would just be delayed under heavy load.


Ethan Galstad,
Nagios Developer
---
Email: nagios at nagios.org
Website: http://www.nagios.org

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