Alex Coke-Smyth wrote:


> max_connections=300
> 
> basically anything over 256 ends up giving the error :
> 
> Can't create a new thread (errno 11). If you are not out of available 
> memory, you can consult the manual for a possible OS-dependent bug
> 
> after 256 connections are open.
> 
> There is plenty of memory available and checking the docs says you 
> should be able to get up to 1500 :
> 
> "If you are using our binary or RPM version 3.23.25 or later, you can 
> safely set
> `max_connections' at 1500"
> 
> 
> using a linux 2.2.19 kernel  and glibc2.1.
> 
> Has anyone experienced this problem or know how I can get around it?


Yes sure! This is limit of linux 2.2.x kernel. Upgrade to 2.4.x OR 
change values in file limits.h of linux 2.2.x kernel. There is a value 
of NR_TASKS set to 512 which you should to increase. There are some 
comments about it also. All this is documented in manual...


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