Did anybody successfully install Craft on Google Cloud SQL? Or on any MySQL engine with activated replication and active GTID mode?
Craft currently won't operate properly if you have GTID enabled because GTID enforces that every table involved in a SQL statements in one transaction have to utilize the same storage engine.
While virtually all of Craft's tables use InnoDB as the storage engine, the
craft_searchindex table is still on MyISAM, because InnoDB didn't add full-text support until MySQL 5.6 and Craft still supports back to MySQL 5.1.
If you're running MySQL 5.6+ (which you should be because I don't believe GTID was introduced until 5.6), then you can manually change the storage engine of the
craft_searchindex table from MyISAM to InnoDB and you shouldn't run into any issues.