[SR-Dev] module startup: Process limit of 36 exceeded.

[Andrei Pelinescu-Onciul]

On May 07, 2009 at 14:03, Henning Westerholt <henning.westerholt at 1und1.de> wrote:
> On Mittwoch, 8. April 2009, Andrei Pelinescu-Onciul wrote:
> > [..]
> > (modules init and starting processes is documented in
> > doc/modules_init.txt).
> 
> Hi Andrei,
> 
> also related to this topic: I did a few tests with the dialog module today. 
> This module checks if it opens a DB connection two times in child_init. I 
> noticed that for the PROC_MAIN process child_init is called two times. Is this 
> correct?

Yes, it's called once with rank PROC_INIT, before forking
(so everything done here will be inherited by all the processes) and
another time with PROC_MAIN (here is the right place for forking other
processes that need tcp access).

> 
> In kamailio child_init for PROC_MAIN is only called one time, thus many 
> modules open DB connections also for the main process.

DB connections should not be opened for PROC_INIT,  PROC_MAIN or
PROC_TCP_MAIN.
Depending on what one wants to do with the DB connections, they might not 
need to be opened also for PROC_RPC/PROC_FIFO/PROC_UNIXSOCK (but then no DB
access will be possible from the rpc/fifo interface) and maybe
PROC_TIMER (if you never use the DB connection from a timer).


Andrei