[Asterisk-Users] asterisk startup

[tim panton]

On 20 Nov 2005, at 18:58, Rich Adamson wrote:

>
>>> I guess it must be a 2.6 kernel stuff since on 2.4 it only makes 1
>>> instance but on my 2.6 boxes, it makes about 10.
>>
>> I always wondered about this and never got a clear answer. On CentOS
>> 4, Fedora 3 and RHES 4 (all 2.6 kernels) it only shows up as one
>> instance, even with several concurrent calls...
>
> Uhm......
>
> Fedora 3... no calls in progress... cvs-head...
>
> [root at phoenix asterisk]# ps ax
>   PID TTY      STAT   TIME COMMAND
>  1786 ?        S      0:00 /bin/sh /usr/sbin/safe_asterisk
>  1832 ?        S      0:00 asterisk -vvvgn -cn
>  1864 ?        S      0:00 asterisk -vvvgn -cn
>  1866 ?        S      0:00 asterisk -vvvgn -cn
>  1867 ?        S      0:00 asterisk -vvvgn -cn
>  1868 ?        S      0:00 asterisk -vvvgn -cn
>  1869 ?        S      0:00 asterisk -vvvgn -cn
>  1873 ?        S      0:35 asterisk -vvvgn -cn
>  1891 ?        S      0:00 asterisk -vvvgn -cn
>  1892 ?        S      0:00 asterisk -vvvgn -cn
>  1893 ?        S      0:11 asterisk -vvvgn -cn
>  1894 ?        S      0:00 asterisk -vvvgn -cn
>  1895 ?        S      0:00 asterisk -vvvgn -cn
>  1927 ?        S      3:11 asterisk -vvvgn -cn
>  1942 ?        S      0:00 asterisk -vvvgn -cn
>  1943 ?        S      0:00 asterisk -vvvgn -cn
>  1945 ?        S      0:00 asterisk -vvvgn -cn
>  1946 ?        S      0:00 asterisk -vvvgn -cn
>

We bumped into this the other day.
The rc.redhat.asterisk script in /usr/src/asterisk/contrib/init.d
sets
LD_ASSUME_KERNEL 2.4.1

Which will make the kernel do old-style process-perthread
posix threads.

If you omit it (or start asterisk from a normal shell) you will get the
newer multiple-threads per process model - and only one line
in the ps output.

I don't know which is recommended.
Both seem to work in our environment, but that's not very busy....

Tim.