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Merge pull request #539 from hb3b/master

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Added RDS/MySQL gotcha regarding MyISAM tables.
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Corey Quinn 2017-11-01 12:01:47 -07:00 committed by GitHub
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@ -1185,6 +1185,7 @@ RDS MySQL and MariaDB
- 🔸You can replicate to non-RDS instances of MySQL, but [replication to these instances will break during AZ failovers](https://www.percona.com/live/mysql-conference-2014/sessions/rds-mysql-tips-patterns-and-common-pitfalls).
- 🔸There is no ability to manually CHANGE MASTER on replicas, so they must all be rebuilt after a failover of the master.
- 🔸Most global options are exposed only via [DB parameter groups](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_WorkingWithParamGroups.html). Some variables that were introduced in later MySQL dot releases such as [avoid_temporal_upgrade](https://dev.mysql.com/doc/refman/5.6/en/server-system-variables.html#sysvar_avoid_temporal_upgrade) in MySQL 5.6.24 are not made available in RDS's 5.6.x parameter group and making use of them requires an upgrade to MySQL 5.7.x.
- 🔸RDS features such as Point-In-Time restore and snapshot restore are not supported on MyISAM tables. Ensure you lock and flush each MyISAM table before executing a snapshot or backp operation to ensure consistency.
RDS Aurora
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