Re: [CentOS] Troubleshooting php-fpm with apache on Centos 7

2017-08-08 Thread Nikolaos Milas 

On 8/8/2017 9:16 πμ, Nikolaos Milas wrote:


For your reference, I am also including the php-fpm configuration


I now browsed today's php-fpm log file (/var/log/php-fpm/www-error.log - 
which is rotated daily) and I found two PHP records about this website, 
with the following content:


--
...
[08-Aug-2017 05:11:45 Europe/Athens] PHP Fatal error: Uncaught Error: 
Call to undefined function get_header() in 
/var/webs/wwwgreekgeo/www/wp/wp-content/themes/nirvana/404.php:10

Stack trace:
#0 {main}
  thrown in 
/var/webs/wwwgreekgeo/www/wp/wp-content/themes/nirvana/404.php on line 10
[08-Aug-2017 05:11:45 Europe/Athens] PHP Fatal error: Uncaught Error: 
Call to undefined function get_header() in 
/var/webs/wwwgreekgeo/www/wp/wp-content/themes/nirvana/404.php:10

Stack trace:
#0 {main}
  thrown in 
/var/webs/wwwgreekgeo/www/wp/wp-content/themes/nirvana/404.php on line 10

...


It appears as a single entry recorded twice (for some unknown reason).

So, even this one (double) entry means that THERE IS (at least some) PHP 
logging about this website!


But there are many questions:

- Why there is only one error entry about this website (in the last two 
and a half days)?

- Why is it double?
- Why there is nothing else (PHP-related) logged about this website?
- Why no other debugging info is being logged?
- Could php-fpm somehow be "blacklisting" the website PHP application 
(WordPress) due to this (and possible other) errors?


Any ideas?

Thanks,
Nick

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Re: [CentOS] Troubleshooting php-fpm with apache on Centos 7

2017-08-07 Thread Nikolaos Milas 

On 8/8/2017 8:57 πμ, John R Pierce wrote:


does the user apache is running as have write access to that folder ?


Thank you for your reply, John.

Yes, there is write access:

# ls -l /var/webs/wwwgreekgeo/log/php*
-rw-rw 1 root apache 0 Aug  7 22:58 
/var/webs/wwwgreekgeo/log/php_error_log


# ls -l /var/webs/wwwgreekgeo/
total 8
drwxrwx---  2 wftpuser apache 4096 Aug  8 03:46 log
drwxrwx--- 10 wftpuser apache 4096 Dec  5  2014 www

For your reference, I am also including the php-fpm configuration:

   # cat /etc/php-fpm.d/www.conf

   include=/etc/php-fpm.d/*.conf

   [global]
   pid = /run/php-fpm/php-fpm.pid

   error_log = /var/log/php-fpm/error.log
   log_level = debug
   daemonize = yes

   [www]

   user = apache
   group = apache

   listen = 127.0.0.1:9000
   listen.allowed_clients = 127.0.0.1

   pm = dynamic
   pm.max_children = 50
   pm.start_servers = 2
   pm.min_spare_servers = 2
   pm.max_spare_servers = 4
   pm.process_idle_timeout = 10s;
   pm.max_requests = 500
   pm.status_path = /fpm-status

   slowlog = /var/log/php-fpm/www-slow.log
   request_slowlog_timeout = 5s
   request_terminate_timeout = 20s

   catch_workers_output = yes

   security.limit_extensions = .php .php3 .php4 .php5 .php7 .htm .html

   php_admin_value[error_log] = /var/log/php-fpm/www-error.log
   php_admin_flag[log_errors] = on
   php_value[session.save_handler] = files
   php_value[session.save_path]= /var/lib/php/session
   php_value[soap.wsdl_cache_dir]  = /var/lib/php/wsdlcache

   php_admin_value[post_max_size] = 40M
   php_admin_value[short_open_tag] = On

   php_value[date.timezone] = "Europe/Athens"


Nick

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Re: [CentOS] Troubleshooting php-fpm with apache on Centos 7

2017-08-07 Thread John R Pierce 

On 8/7/2017 10:52 PM, Nikolaos Milas wrote:
As you can see, I have made efforts to enable php debugging, but I 
still can't see any php logging, in any php log:


   /var/log/php-fpm/error.log
   /var/log/php-fpm/www-error.log
   The file: /var/webs/wwwgreekgeo/log/php_error_log remains empty 


does the user apache is running as have write access to that folder ?


--
john r pierce, recycling bits in santa cruz

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[CentOS] Troubleshooting php-fpm with apache on Centos 7

2017-08-07 Thread Nikolaos Milas 

Hello,

I am running httpd-2.4.6-45.el7.centos.x86_64 with 
php-fpm-7.0.22-1.el7.remi.x86_64 (on CentOS 7).


My main problem: On this httpd server I have several vhosts running, but 
apparently I am facing intermittent problems with php-fpm communication 
on only one of them.


Most of the sites are WordPress or Joomla Applications (running with 
mysql). Everything seems right: low load, all websites are operating 
fine, except this one, but only intermittently.


The secondary problem is that I can't seem to be able to log php errors.

When the problem starts, the users receive "503 Service Unavailable" 
pages for many hours/days, and in the error log I see only such errors:


   [Tue Aug 08 08:27:31.742640 2017] [proxy_fcgi:debug] [pid 29259]
   mod_proxy_fcgi.c(963): [client 180.76.15.139:30619] AH01076: url:
   fcgi://127.0.0.1:9000/var/webs/wwwgreekgeo/www/wp/index.php
   proxyname: (null) proxyport: 0
   [Tue Aug 08 08:27:31.742642 2017] [proxy_fcgi:debug] [pid 29259]
   mod_proxy_fcgi.c(970): [client 180.76.15.139:30619] AH01078: serving
   URL fcgi://127.0.0.1:9000/var/webs/wwwgreekgeo/www/wp/index.php
   [Tue Aug 08 08:27:31.742645 2017] [proxy:debug] [pid 29259]
   proxy_util.c(2203): AH00942: FCGI: has acquired connection for (*)
   [Tue Aug 08 08:27:31.742661 2017] [proxy:debug] [pid 29259]
   proxy_util.c(2256): [client 180.76.15.139:30619] AH00944: connecting
   fcgi://127.0.0.1:9000/var/webs/wwwgreekgeo/www/wp/index.php to
   127.0.0.1:9000
   [Tue Aug 08 08:27:31.742690 2017] [proxy:debug] [pid 29259]
   proxy_util.c(2422): [client 180.76.15.139:30619] AH00947: connected
   /var/webs/wwwgreekgeo/www/wp/index.php to 127.0.0.1:9000
   [Tue Aug 08 08:27:31.742739 2017] [proxy:debug] [pid 29259]
   proxy_util.c(2798): AH02824: FCGI: connection established with
   127.0.0.1:9000 (*)
   [Tue Aug 08 08:27:52.347960 2017] [proxy_fcgi:error] [pid 29259]
   (104)Connection reset by peer: [client 180.76.15.139:30619] AH01075:
   Error dispatching request to :
   [Tue Aug 08 08:27:52.348021 2017] [proxy:debug] [pid 29259]
   proxy_util.c(2218): AH00943: FCGI: has released connection for (*)

The problem is NOT resolved by restarting apache and/or php-fpm.

The config of the vhost is as follows:

   
DocumentRoot "/var/webs/wwwgreekgeo/www"

ServerName www.greekgeo.noa.gr

ServerAdmin webmas...@noa.gr

DirectoryIndex index.php index.html index.htm

php_flag log_errors on
php_flag display_errors off
php_value error_log /var/webs/wwwgreekgeo/log/php_error_log
   #php_value error_reporting 32767
   #php_value error_reporting 2147483647
php_value error_reporting 6135

Redirect 301 /en.index.html http://www.greekgeo.noa.gr/wp/

RewriteEngine on

RedirectMatch ^/index.html$ /wp/


Options -Indexes +FollowSymLinks
AllowOverride All
Require all granted



   Require all denied



SetHandler "proxy:fcgi://127.0.0.1:9000"


ErrorLog /var/webs/wwwgreekgeo/log/error_log
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\"
   \"%{User-agent}i\"" combined
CustomLog /var/webs/wwwgreekgeo/log/access_log combined
LogLevel debug

   

As you can see, I have made efforts to enable php debugging, but I still 
can't see any php logging, in any php log:


   /var/log/php-fpm/error.log
   /var/log/php-fpm/www-error.log
   The file: /var/webs/wwwgreekgeo/log/php_error_log remains empty

I've also followed these directions to enable Wordpress php logging: 
https://codex.wordpress.org/WP_DEBUG but I didn't get any php logging 
either.


Please advise: How can I enable full php logging and troubleshoot php on 
this vhost?


Also: What would you advise, if possible, on the particular problem (php 
processing hanging on this vhost only without any obvious reason)?


I've googled and tried many things for several hours, but I can't find a 
solution.


Thanks in advance,
Nick


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