The occurrence of failures and crashes can compromise the high availability of your database system, affecting your revenue and reputation. Therefore, it is fundamental to minimize downtime and have an efficient strategy for crash recovery. Replication and failover are commonly applied to deal with those situations, but what if failures occur during the recovery process? This can really be a headache, so it is better to be prepared. This session discusses the development of fault-tolerant failover solutions using the MySQL utilities library and covers the following topics:
• Issues during failover/switchover
• Fault-tolerant failover solutions
• Using the MySQL utilities library to provide your own solution
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