Php-fpm:hundreds of seconds in the log

Favorite
I have NGINX+PHP-FPM Web server
So I ' ve noticed in php5-fpm.log many strange lines:
[03-sep-2013 09:25:23] NOTICE: [Pool www] child 23999 exited with code 0 after 321.832329 seconds from start
[03-sep-2013 09:25:23] NOTICE: [Pool www] child 24082 started
[03-sep-2013 09:25:41] NOTICE: [Pool www] child 24032 exited with code 0 after 259.247887 seconds from start
[03-sep-2013 09:25:41] NOTICE: [Pool www] child 24083 started
[03-sep-2013 09:25:47] NOTICE: [Pool www] child 24033 exited with code 0 after 255.954602 seconds from start
[03-sep-2013 09:25:47] NOTICE: [Pool www] child 24084 started
[03-sep-2013 09:25:50] NOTICE: [Pool www] child 24014 exited with code 0 after 327.620462 seconds from start
[03-sep-2013 09:25:50] NOTICE: [Pool www] child 24085 started
[03-sep-2013 09:25:55] NOTICE: [Pool www] child 24034 exited with code 0 after 254.974653 seconds from start
[03-sep-2013 09:25:55] NOTICE: [Pool www] child 24086 started
[03-sep-2013 09:26:01] NOTICE: [Pool www] child 24035 exited with code 0 after 253.388234 seconds from start
[03-sep-2013 09:26:01] NOTICE: [Pool www] child 24087 started
[03-sep-2013 09:26:02] NOTICE: [Pool www] child 24036 exited with code 0 after 251.374430 seconds from start
[03-sep-2013 09:26:02] NOTICE: [Pool www] child 24088 started
[03-sep-2013 09:26:05] NOTICE: [Pool www] child 24019 exited with code 0 after 325.601766 seconds from start
[03-sep-2013 09:26:05] NOTICE: [Pool www] child 24089 started
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24037 exited with code 0 after 255.871955 seconds from start
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24090 started
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24038 exited with code 0 after 255.884311 seconds from start
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24091 started
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24039 exited with code 0 after 254.826181 seconds from start
[03-sep-2013 09:26:09] NOTICE: [Pool www] child 24092 started
[03-sep-2013 09:26:12] NOTICE: [Pool www] child 24040 exited with code 0 after 256.232759 seconds from start
[03-sep-2013 09:26:12] NOTICE: [Pool www] child 24093 started
[03-sep-2013 09:26:14] NOTICE: [Pool www] child 24027 exited with code 0 after 321.722533 seconds from start
Can anyone tell me, what is these seconds like after 321.722533 seconds from start and what does it mean?

UPD

My config is:

PM = dynamic
Pm.max_children = 50
Pm.start_servers = 20
Pm.min_spare_servers = 5
Pm.max_spare_servers = 35
pm.max_requests = 100
php-fpm

Accepted: Problem reply
"Seconds" is a unit of time; 321 of them is a little over five minutes.

The reason your processes is exiting, and respawning is so you have set the Pm.max_children option in your PHP-FPM pool Configuration file.

For example, taken from the default configuration:

; The number of requests each child process should execute before respawning.
; This can is useful to work around memory leaks on 3rd party libraries. For
; Endless request processing Specify ' 0 '. Equivalent to Php_fcgi_max_requests.
; Default value:0
Pm.max_requests = 500
We can see in your configuration that it was set to, thus php-fpm recycles the process after it had processed, Reque Sts.

Share|improve this Answer
Edited Sep 3 ' at 6:51

answered Sep 3 ' at 6:45

Michael hampton♦
55.9k767132

So, it means concrete thread lived 321 seconds and would be respawned. I can not pay attention on it? –lari13 Sep 3 ' at 7:00

You can ignore these messages; They is harmless and purely informational. –michael hampton♦sep 3 ' at 8:12