Open Source Data Center Conference
Register here: http://www.netways.de/en/osdc/osdc2013/anmeldung/
Schedule here: http://www.netways.de/en/osdc/osdc2013/programm/
Venue here: http://www.netways.de/en/osdc/osdc2013/venue/
»Late 2012 it became clear that Oracle MySQL would be releasing the 5.6 upgrade RSN. As we already had the beta running productively since summer 2012, it was clear to us that we would need the ability to roll this out widely once it became Generally Available as a stable release.
Unfortunately, at that time the server count was well in the four digits and rising in preparation of the 2013 high season.
So we needed to make the move from automation to orchestration, being able not only to create new database servers without touching them, but also to deal with a replication hierarchy capacity as a service: How many servers can we move out of service at once for upgrade, how to we automate load balancer configuration, how to we validate an upgrade, warm up databases and move them back into service without creating load impulse responses or similar problems?
We came up with a solution that involves bittorrent to distribute data inside the data center, and some work queue that orchestrates automated systems maintenance reliably. We were able to do the upgrade technically in less than three days, and then decided not to go actually that fast - but upgrading became a normal operational process instead of being a crisis.«
»Kristian Köhntopp currently works on architecture and scaling projects at booking.com
. His professional experience stretches from working at MySQL AB to being a Securityfuzzi at web.de
and a builder of large mail systems at NetUSE AG.«