Metrics
The following metrics are submitted to Nixstats.

Accepted connections (per second, total)
Active processes
Total processes
Idle processes
Max active processes
Listen queue
Listen queue length
Max listen queue
Max children reached
Start time
Start since
Pool
Process manager
Slow requests

Dependencies
urllib2
json

PHP-FPM status page
To enable the PHP-FPM status page add the following code to your PHP-FPM pool configuration file.

pm.status_path = /status_phpfpm
Now make the following changes to your NGiNX configuration file.

server {
listen 127.0.0.1:8080;
server_name localhost;
location /status_phpfpm {
fastcgi_pass 127.0.0.1:9000;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
allow 127.0.0.1;
deny all;
}
}


Or for Apache edit etc/apache2/mods-available/fastcgi.conf (or similar):

<IfModule mod_fastcgi.c>
# Define a named handler
AddHandler php7-fcgi .php
# Generate an alias pointing to /usr/lib/cgi-bin/php[VersionNumber]-fcgi
Alias /php7-fcgi /usr/lib/cgi-bin/php7-fcgi
# Configure an external server handling your upcoming requests (note where the alias is pointing towards)
FastCgiExternalServer /usr/lib/cgi-bin/php7-fcgi -socket /var/run/php/php7.0-fpm.sock -pass-header Authorization

# only on if fpm-status is match. You might want to put this into your concrete vhost.conf file. For the testing, fastcgi.conf should work.
<LocationMatch "/status_phpfpm">
Order deny,allow
Deny from all
Allow from 127.0.0.1
# set the before defined handler here
SetHandler php7-fcgi
# use the handler for the action handling virtual requests
Action php7-fcgi /php7-fcgi virtual
</LocationMatch>
</IfModule>


You can test if the status page is working by running
wget -qO- http://127.0.0.1:8080/status_phpfpm?json

Configure the plugin
To enable the plugin edit the nixstats configuration file. This file is usually located at /etc/nixstats.ini.

Add the following settings to the end of the file.
[phpfpm]
enabled = yes
status_page_url = http://127.0.0.1:8080/status_phpfpm?json


Test to see if the plugin is working by running nixstatsagent --test phpfpm. It should show the following metrics:

phpfpm:
{
"accepted_conn": 3015,
"accepted_conn_per_second": 0.0,
"active_processes": 1,
"idle_processes": 0,
"listen_queue": 0,
"listen_queue_len": 128,
"max_active_processes": 1,
"max_children_reached": 0,
"max_listen_queue": 1,
"pool": "www",
"process_manager": "ondemand",
"slow_requests": 0,
"start_since": 294686,
"start_time": 1492504250,
"total_processes": 1
}

Now you can restart the agent service nixstatsagent restart to start monitoring PHP-FPM.
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