pool stats from fcgi - total processes != pm.max_children for #16964
Description
Description
using the following pool:
cat www.conf|grep -v ";"|grep "\S"
[www]
user = www-data
group = www-data
listen = /run/php/php8.4-fpm.sock
listen.owner = www-data
listen.group = www-data
pm = static
pm.max_children = 50
pm.max_requests=1000
pm.status_path=/status8.4
and status:
php_version=$(php -v|head -n1|cut -d' ' -f2|cut -d'.' -f1-2)
export SCRIPT_NAME=/status$php_version; export SCRIPT_FILENAME=/status$php_version; export REQUEST_METHOD=GET; cgi-fcgi -bind -connect /run/php/php$php_version-fpm.sock
returns most of the time:
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Content-type: text/plain;charset=UTF-8
pool: www
process manager: static
start time: 27/Nov/2024:16:14:18 +0100
start since: 2885
accepted conn: 1
listen queue: 0
max listen queue: 0
listen queue len: 0
**idle processes: 0**
active processes: 1
**total processes: 1**
max active processes: 4
max children reached: 0
slow requests: 0
memory peak: 73400320
expected output:
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
Content-type: text/plain;charset=UTF-8
pool: www
process manager: static
start time: 27/Nov/2024:16:14:18 +0100
start since: 2885
accepted conn: 1
listen queue: 0
max listen queue: 0
listen queue len: 0
**idle processes: 49**
active processes: 1
**total processes: 50**
max active processes: 4
max children reached: 0
slow requests: 0
memory peak: 73400320
this always worked on php 5.6-8.3, but with current 8.4.1 it sometimes returned the output above.
Wrong output is returned a lot (30-100%), so not an edge case during max requests process recreation.
I think it is only shown wrong, when i count processes via ps e.g. they are always present.
I used this in monitoring script to calculate the rate of active/total processes.
PHP Version
PHP 8.4.1-3
Operating System
Ubuntu 24.04.1