Tag Archives: ruby

CircleCI, Rails 5, Minitest, and avoiding the OptionParser::InvalidOption exception

After updating a project to rails 5 I was no longer able to use the minitest-ci gem without making a few changes. My project was failing with the following exception: /home/ubuntu/ebth-com/vendor/bundle/ruby/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/minitest_plugin.rb:57:in `plugin_rails_options’: invalid option: –ci-dir=/tmp/circle-junit.pSCJhIM/minitest (OptionParser::InvalidOption) To fix I basically had to override the test command so –ci-dir wouldn’t be specified. Here is the process… Read More »

PostgreSQL + Chef – Automatically configure based on server RAM

I was sick of changing shared_buffers, effective_cache_size, maintenance_work_mem, work_mem, SHMMAX, SHMALL each time we’d spin up a new server. So I decided instead to have chef calculate it for me! It takes the available RAM of the server and then calculates each value based on: shared_buffers = 25% of maximum memory maintenance_work_mem = 10% of… Read More »