Thank you for the quick response.
I understand the reason I don't see "internal dummy connection"
message in the log. (now I do.)
Let me explain the detail what's heppeing with my setting below.
---
<IfModule mpm_prefork_module>
StartServers 10
MinSpareServers 10
MaxSpareServers 20
MaxClients 30
MaxRequestsPerChild 0
</IfModule>
---
What's heppening is parent process seems killing too many child processes
even though MinSpareServers set to 10.
(sometimes having only 5 children and it's less than MinSpareServers)
Is it a strange behavior ?
And it's not happening in the development environment.(kernel 2.4)
It might be from kernel ?
Now I read the source and I set MaxSpareServers to 30 (same as MaxClients),
then no more "internal dummy connection" is coming,
because idle_count will never be more than the MaxClients.
server/mpm/prefork/prefork.c (830:837)
---
if (idle_count > ap_daemons_max_free) {
/* kill off one child... we use the pod because that'll cause it to
* shut down gracefully, in case it happened to pick up a request
* while we were counting
*/
ap_mpm_pod_signal(pod); // killing children, but how many ?
idle_spawn_rate = 1;
}
---
idle_count is counted wrong in kernel 2.6 ?
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