All articles tagged Devops & Performance

Without patching, the rsync utility lacks support to detect when a file was renamed/moved across multiple directories inside the synced tree. There is a ––fuzzy option to save bandwidth by building upon similar files on the target side, but only …

Recently we noticed some intermittent slow downs with our Gondola sites and wanted to track down the source of the issue. Our sites are all Django projects served by Apache/mod_wsgi behind an Nginx frontend proxy. Nginx’s upstream module makes the …

I really like supervisord for long-running process management. It is Python, so it is easy to install and it is easy to script with tools like Fabric. Lately I’ve been deploying smaller Django/WSGI sites with Green Unicorn behind Nginx proxied …

Here’s one I struggled with a bit while upgrading lincolnloop.com yesterday. Scenario: You need to take your site offline and want to redirect all its traffic to a “down for maintenance” page. For search engine friendliness, that page should return …