Php-Fpm: status URL for all pools

monitoringperformance-monitoringphp-fpmzabbix

I have an ISPConfig server serving php pages with FPM in ondemand mode. On another server with a single fpm pool I keep daemon monitored using the /status URL and work great.
In ISPConfig case there are several pools, one for each domain, and the status URL gives information about the single pool.
Is there any way to have a singe status URL to keep monitored all the daemon childs? Like number of processes, queue, slow processes…
Thanks

Best Answer

There is no way to monitor multiple php-fpm pools with one status URL, but it also doesn't make sense to do that. The only reason for creating more php-fpm pools is to separate different services one from each other, so if one service fails, the other one continues to work. Which is the reason why you should monitor each pool separately. If you don't have different services using php-fpm, then don't create more pools in the first place, just use one pool with more processes.

If you would like Zabbix to detect all php-fpm pools status URLs, you could create a discovery script which would find all status URLs from the php-fpm configuration files and return them to Zabbix, from which Zabbix could automatically create items for each pool you would like to monitor.

Related Solutions

PHP-FPM and APC for shared hosting

I know what are you are trying to do, since it is part of the project I am leading. I've already investigated about it and it seems the only way to solve the problem is to use a modified version of memcached and apc.

I thought currently APC did allow to save data into memcached, but I've discovered it doesn't, so the easiest way to solve the problem is hacking memcached allowing it to have different accounts with different caches, and maybe different cache sizes, and then hack APC too, allowing to query memcached to fetch opcodes from it.

Memcached hack would also be useful because you could set an expiring time to the cache and evaluate what should be cached and what shouldn't: this way you would save more ram, and use it only on demand. To select the account you want to use, you would then use the SASL authentication (that has already been developed for memcached) against the memcached server, putting more security in this configuration.

Memcached deploy would also be useful for other things like caching, so I am going to follow this path.

Nginx – One unix socket for all php-fpm pools

You can have each nginx server block point at same socket and in the /etc/nginx/fastcgi_params there are the lines:

fastcgi_param   DOCUMENT_URI        $document_uri;
fastcgi_param   DOCUMENT_ROOT       $document_root;

These will cause the document root from your nginx server block to be passed through to php-fpm.

server {
    root /var/www/<%= @title %>/public;
    ...
}

You should then omit the line php_admin_value[open_basedir] = /usr/local/www/domain.com from your php-fpm pool config file.

I believe nginx can do a similar thing to change the log, session and uploads directory, or you can change the error, session and upload handler in php to log to a relative path based on your document root.

Best Answer

Related Solutions

PHP-FPM and APC for shared hosting

Nginx – One unix socket for all php-fpm pools

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