Online Schema Changes for Maximizing Uptime

Database Administration
24 April 2:00pm - 2:50pm @ Ballroom B

Whether adding indexes, altering enums, changing datatypes or reorganizing tables - there are right and wrong ways when production is involved. In this session, we will go over common operations implemented in production, discuss their impacts, and appropriate strategies for minimizing downtime and customer impact to systems.

* Fast operations including index adds and enum list changes (and gotchas!)
* Online schema changes using current production utilities such as Facebook OSC and PT-Online-Schema-Change
* Rolling Migrations and Upgrades
* Impacts of replication on DDL changes
* Things to look out for when changing your schemas.

Speakers

Ben Black
DBA, Tango
Biography: 
For the past 15 years, Ben has been a DBA, developer, and Sys Admin working on high volume production systems at Garmin, PalominoDB, and Tango.
David Turner
DBA, Dropbox
Biography: 
David Turner joined Dropbox in 2013. He has more than 10 years experience working with databases such as Oracle and MySQL. He was drawn to MySQL because of his interest in database internals and a deeper understanding of systems architecture. With MySQL he has found he has more freedom to explore. His experience in working at larger shops such as Facebook, Pinterest, Sprint, and Zendesk has given him a strong understanding of scaling issues and of managing massive amounts of data and databases.

Slides