NON BLOCKING DDL IN GALERA CLUSTER
23 September 3:10PM – 3:35PM @ Matterhorm
Schema upgrades in Galera based clusters have been problematic due to excessive locking in replication level. With long term schema changes this has cause unwanted service breaks. e.g. ALTER TABLE for a large table could lock up your cluster for hours.
Galera 4.0 implements new method for replicating DDL statements: “Non Blocking DDL”. But, how non blocking this replication method really is and what are the best practices for schema upgrades in Galera 4? This and more galera 4.0 questions will answered in this 50 minute conference session.
Presenter: Seppo Jaakola, CEO