PHP-FPM What's the reason fpmstop to be very slow?

Please fill in any relevant information that applies to you:

• CentOS Version: CentOS 7 64bit
• Centmin Mod Version Installed:123.09beta01
• PHP Version Installed: 7.2.12

This is a brand new server/new CMM installed/no visitors.
Other servers with similar specs and has significant amount of traffic is instant.

---

 

Yes with dynamic mode.
Hm, I already reinstall the server.

I will try to re apply my custom settings and observe again.

 

Just an update, this only happens when I use dynamic mode with this formula.

While all my other server have this config has no problem.

 

I still have this issue.

Old vs New server.
Both have same CPU, RAM, Disk on NVMe is almost the same.

With this config:

Code:

pm = dynamic
pm.max_children = cpu x 4
pm.start_servers = # of cpu
pm.min_spare_servers = cpu / 2
pm.max_spare_servers = cpu x 2
pm.max_requests = 2000

Old server restarts quick, but New server takes several seconds.

 

Old server even have more child process running at 16.
New server has no visitor.
So has only 8 child running.

 

Yes, only ondemand will restart/stop quickly.

 

Code:

# time bash -x /etc/init.d/php-fpm stop
+ '[' -f /proc/user_beancounters ']'
+ '[' '!' -d /var/run/php-fpm ']'
+ prefix=/usr/local
+ exec_prefix=/usr/local
+ php_fpm_BIN=/usr/local/sbin/php-fpm
+ php_fpm_CONF=/usr/local/etc/php-fpm.conf
+ php_fpm_PID=/var/run/php-fpm/php-fpm.pid
+ php_opts='--fpm-config /usr/local/etc/php-fpm.conf --pid /var/run/php-fpm/php-fpm.pid'
+ case "$1" in
+ echo -n 'Gracefully shutting down php-fpm '
Gracefully shutting down php-fpm + '[' '!' -r /var/run/php-fpm/php-fpm.pid ']'
++ cat /var/run/php-fpm/php-fpm.pid
+ kill -QUIT 14501
+ wait_for_pid removed /var/run/php-fpm/php-fpm.pid
+ try=0
+ test 0 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 0 + 1
+ try=1
+ sleep 1
+ test 1 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 1 + 1
+ try=2
+ sleep 1
+ test 2 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 2 + 1
+ try=3
+ sleep 1
+ test 3 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 3 + 1
+ try=4
+ sleep 1
+ test 4 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 4 + 1
+ try=5
+ sleep 1
+ test 5 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 5 + 1
+ try=6
+ sleep 1
+ test 6 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 6 + 1
+ try=7
+ sleep 1
+ test 7 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 7 + 1
+ try=8
+ sleep 1
+ test 8 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 8 + 1
+ try=9
+ sleep 1
+ test 9 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 9 + 1
+ try=10
+ sleep 1
+ test 10 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ try=
+ break
+ '[' -n '' ']'
+ echo ' done'
 done

real    0m10.083s
user    0m0.035s
sys    0m0.049s

 

But why on old server install, config is 100% same including this, yet restart very quick?
This only happens server I installed since late last year.

 

Yeah, it's a little bit okay from 10s to 5s .

Code:

# time bash -x /etc/init.d/php-fpm stop
+ '[' -f /proc/user_beancounters ']'
+ '[' '!' -d /var/run/php-fpm ']'
+ prefix=/usr/local
+ exec_prefix=/usr/local
+ php_fpm_BIN=/usr/local/sbin/php-fpm
+ php_fpm_CONF=/usr/local/etc/php-fpm.conf
+ php_fpm_PID=/var/run/php-fpm/php-fpm.pid
+ php_opts='--fpm-config /usr/local/etc/php-fpm.conf --pid /var/run/php-fpm/php-fpm.pid'
+ case "$1" in
+ echo -n 'Gracefully shutting down php-fpm '
Gracefully shutting down php-fpm + '[' '!' -r /var/run/php-fpm/php-fpm.pid ']'
++ cat /var/run/php-fpm/php-fpm.pid
+ kill -QUIT 29573
+ wait_for_pid removed /var/run/php-fpm/php-fpm.pid
+ try=0
+ test 0 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 0 + 1
+ try=1
+ sleep 1
+ test 1 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 1 + 1
+ try=2
+ sleep 1
+ test 2 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 2 + 1
+ try=3
+ sleep 1
+ test 3 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 3 + 1
+ try=4
+ sleep 1
+ test 4 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ echo -n .
.++ expr 4 + 1
+ try=5
+ sleep 1
+ test 5 -lt 35
+ case "$1" in
+ '[' '!' -f /var/run/php-fpm/php-fpm.pid ']'
+ try=
+ break
+ '[' -n '' ']'
+ echo ' done'
 done

real    0m5.051s
user    0m0.021s
sys    0m0.032s

 

This doesn't run on my install by the way, and

 

Installed March 2018, so less than 1 year.

 

On both server, this file is also 100% the same.

 

Not sure what else I need to investigate.