July 2015 – Ultrabug

Designing a scalable and distributed application

These are the slides of my EuroPython 2015 talk. The source code and ansible playbooks are available on github !

MongoDB 3.0 upgrade in production : step 3 hope

In our previous attempt to upgrade our production cluster to 3.0, we had to roll back from the WiredTiger engine on primary servers. Since then, we switched back our whole cluster to 3.0 MMAPv1 which has brought us some better performances than 2.6 with no instability. Production checklist We decided to use this increase in […]