[TriLUG] FC2, Dovecot, Squirrelmail = Crash

[Aaron S. Joyner]

Jason Tower wrote:

>>Also, here's another wrinkle in the mix.  When we were testing, we
>>repeatedly crashed Apache in this way (mostly on purpose) and then
>>were doing a "service httpd restart" (essentially just a kill and
>>restart). Eventually, Apache couldn't restart itself, complaining of
>>insufficient space on the device, and referencing semaphores. 
>>Presumably, the box had run out of semaphores because Apache and
>>PHP's threading had been screwed up in some way.  A reboot fixed it. 
>>I don't think that really provides any insight into the situation,
>>but does anyone know of a way to clear those semaphores?
>>
>>Aaron S. Joyner
>>    
>>
>
>that's a well known redhat/apache issue, i used see it on my rh9 
>webservers that had extended (100+ day) uptimes.  afaik, nothing short 
>of a reboot will fix it.  none of my mandrake boxes seem to be affected 
>by it though.
>
>jason
>  
>
That's strange, I have a couple rh9 servers that have 200+ day uptimes 
and I've never seen that problem before.  Mind if I ask what you were 
running on those rh9 boxes, roughly?  Mostly PHP stuff I'm going to 
hazard a guess?

Aaron S. Joyner