Web Server response error or very slow

[hoangsang]

depending on your server configuration, you should consider increasing the values. specially the php-fpm one.

You can specific value examples?

that will depend on circumstances, but you can first increase the maxchildren to something 12/15, 5 is really not good for you.

I'm changed to:

Code: [Select]

pm.max_children = 70
pm.start_servers = 50
pm.min_spare_servers = 40
pm.max_spare_servers = 55
pm.max_requests = 1000

But access by Chrome is very slow

[Anik]

70 is a too large value. just set something between 12 to 15 depending on traffic.
what the log files is saying? specially the slowlog?
any errors, timeouts, or memory overload?

[Anik]

Calculate by memory usage too. like if one php-fpm child process is taking 150 MB ram then 70 process will take 10,500 MB which will end up giving you 500 error and probably locking down the server. so choose wisely by using your brain. Good Luck.

[hoangsang]

Calculate by memory usage too. like if one php-fpm child process is taking 150 MB ram then 70 process will take 10,500 MB which will end up giving you 500 error and probably locking down the server. so choose wisely by using your brain. Good Luck.

Thanks. This my log

Code: [Select]

[22-Jan-2013 17:07:21] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 17:08:22] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 19:31:35] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 19:46:54] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 19:51:59] ERROR: unable to read what child say: Bad file descriptor (9)
[22-Jan-2013 20:46:03] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 21:24:33] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 21:47:16] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 21:59:59] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 22:07:46] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 22:07:53] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 22:29:44] ERROR: unable to read what child say: Bad file descriptor (9)
[22-Jan-2013 22:57:50] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[22-Jan-2013 23:25:17] WARNING: [pool bachngocsach] server reached pm.max_children setting (5), consider raising it
[23-Jan-2013 00:56:58] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:56:58] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:08] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:41] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 00:59:41] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 01:04:19] ERROR: unable to read what child say: Bad file descriptor (9)
[23-Jan-2013 01:04:19] ERROR: unable to read what child say: Bad file descriptor (9)


ERROR: unable to read what child say: Bad file descriptor (9)
hichic

[hoangsang]

Calculate by memory usage too. like if one php-fpm child process is taking 150 MB ram then 70 process will take 10,500 MB which will end up giving you 500 error and probably locking down the server. so choose wisely by using your brain. Good Luck.

I'm changed to:

Code: [Select]

pm.max_children = 15
pm.start_servers = 14
pm.min_spare_servers = 13
pm.max_spare_servers = 15
pm.max_requests = 1000

And view log:
[23-Jan-2013 01:45:30] WARNING: [pool bachngocsach] server reached pm.max_children setting (15), consider raising it

[Tsanten]

You need to configure php mysql nginx for your settings this mean you have to know how much ram  and how many cpu do you have
Normally i configure mysql to take at maximum 50% (mysqltuner.pl)of the memory and let other for caching and web server.
Start from this and observe were you have to modify settings.

[Anik]

As i told, you should have to raise the max children. which log file it is? /var/log/php-fpm/error.log ?
looks like segfault or open files overload.
increase the connection and children.

[Spacedust]

Calculate by memory usage too. like if one php-fpm child process is taking 150 MB ram then 70 process will take 10,500 MB which will end up giving you 500 error and probably locking down the server. so choose wisely by using your brain. Good Luck.

I'm changed to:

Code: [Select]

pm.max_children = 15
pm.start_servers = 14
pm.min_spare_servers = 13
pm.max_spare_servers = 15
pm.max_requests = 1000

And view log:
[23-Jan-2013 01:45:30] WARNING: [pool bachngocsach] server reached pm.max_children setting (15), consider raising it

Set this to:

Code: [Select]

pm.max_children = 30
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 6
pm.max_requests = 1000