While monitoring a http/php server, I needed to do some statistics about php-cgi memory usage. Playing with memory_limit in PHP, we wanted to know the average memory usage per php-cgi process. This is easily calculated with our best friend awk. First, get the number of php running processes: # ps aux | grep php-cgi | …
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Maintenance mode (HTTP 503) with lighttpd and PHP
When you put your website in maintenance mode, it’s a good idea to return a HTTP 503 error code to the client. This code indicates that “the server is currently unable to handle the request due to a temporary overloading or maintenance of the server”. The 503 code is used to avoid crawlers or caching …