PHP-FPM WARNING: failed processes threshold (10 in 60 sec) is reached, initiating reload Errors

yup as @Xon stated

Your /usr/local/etc/php-fpm.conf config file (see config file list) as 2 settings in it that control this to prevent further/permanent crashes (SIGSEGV or SIGBUS - segmentation faults and the such) see centminmod/php-fpm.conf at 123.08stable · centminmod/centminmod · GitHub

Code:

emergency_restart_threshold = 10
emergency_restart_interval = 1m

which is explained at PHP: Configuration - Manual and SEGSEGV and SIGBUS at c - Bus error vs Segmentation fault - Stack Overflow

FAQ 19 lists your log files and there's one for PHP-FPM process /var/log/php-fpm/www-error.log and one for PHP apps /var/log/php-fpm/www-php.error.log

Segfaults can usually happen due to either your web apps PHP code itself and/or it's interaction with your PHP extensions installed/loaded (i.e. Zend Opcache, Xcache or APC Cache are common ones when there's conflicts, bugs or compatibility issues with PHP extensions). Unfortunately, diagnosing and troubleshooting such is left up to you so you need to debug your php server. What are segfaults = Why Does The Segmentation Fault Occur on Linux / UNIX Systems?

Examples with strace below:

• Debugging Stuck PHP-FPM Process With Strace - Coffee Coder
• Why you should be using strace – Brandon Wamboldt
• Linux application/script debugging with 'strace'
• markus-perl/php-strace · GitHub

With gdb backtrace and PHP debug compiled mode where centmin.sh has a PHPDEBUGMODE variable which you can set to PHPDEBUGMODE=y and recompile php via centmin.sh menu option 5 to enable debug mode for PHP-FPM. After troubleshooting set PHPDEBUGMODE=n and recompile php via centmin.sh menu option 5 again to disable debug mode.

Code:

PHPDEBUGMODE=n # --enable-debug PHP compile flag

• PHP :: Generating a gdb backtrace

Centmin Mod is provide as is, so short of scripted related bugs or issues, any further optimisation to the web stack components - nginx, php-fpm, mariadb mysql, csf firewall etc or web app specific configurations are left to the Centmin Mod user to deal with. So I do not provide any free support for such.

You'll need to tune your PHP-FPM settings and this is left up to end user to do but here's a thread for starters to enable php status page output outlined at PHP-FPM - CentminMod.com LEMP Nginx web stack for CentOS and PHP-FPM - pm.max_children | Centmin Mod Community which outlines the official PHP-FPM config documentation as well.

 

oh and as you're using PHP 7.0.2 check bug tracker for any reported bugs too PHP :: Bugs :: Search

 

yes

yes

when you run centmin.sh menu option 5 for major version php changes i.e. 5.5 to 5.6 to 7.0 they will auto recompile latest php extensions defined by version numbers in centmin.sh or your persistent custom_config.inc. For same minor branch upgrades 5.6.16 to 5.6.17 the centmin.sh menu option 5 skips the recompile of php extensions as generally not needed. Some specific php extensions can be recompiled via centmin.sh menu options though like options 10, 12, 15, 19 when needed.

FAQ item 37 gives info and commands for find the path to custom php extensions ini files for custom compiled PHP extensions

Code:

php --ini
Configuration File (php.ini) Path: /usr/local/lib
Loaded Configuration File:         /usr/local/lib/php.ini
Scan for additional .ini files in: /etc/centminmod/php.d
Additional .ini files parsed:      /etc/centminmod/php.d/a_customphp.ini,
/etc/centminmod/php.d/curlcainfo.ini,
/etc/centminmod/php.d/geoip.ini,
/etc/centminmod/php.d/igbinary.ini,
/etc/centminmod/php.d/imagick.ini,
/etc/centminmod/php.d/mailparse.ini,
/etc/centminmod/php.d/memcache.ini,
/etc/centminmod/php.d/memcached.ini,
/etc/centminmod/php.d/mongodb.ini,
/etc/centminmod/php.d/redis.ini,
/etc/centminmod/php.d/zendopcache.ini

then just edit the ini file and comment out with semi-colon ; in front the zend_extension or extension load lines and restart php-fpm to disable manually the php extension i.e. for /etc/centminmod/php.d/zendopcache.ini

Code:

;zend_extension=opcache.so

for /etc/centminmod/php.d/memcached.ini

Code:

;extension=/usr/local/lib/php/extensions/no-debug-non-zts-20151012/memcached.so

 

if you only need to temporarily disable some of the source compiled PHP extensions, just move their individual *.ini settings files out of php config scan directory at /etc/centminmod/php.d

I added official FAQ item 38 outlining how to do this

 

mailparse.ini should of been move with the command outlined in FAQ item 38 if not move it manually and leave curlcainfo.ini alone as outlined in FAQ item 38

 

mailparse is needed if you use Blesta PHP-FPM - How to install mailparse PECL PHP extension for Centmin Mod | Centmin Mod Community

 

yes