"Delayed replication" is one of the important features which were being supported in MySQL from 5.6 for a very long time. This induces an intentional lag in the slave, making it lag by the defined time interval. For a long time this was not available with the RDS version of MySQL provided by AWS, Recently … Continue reading Delayed Replication with Amazon RDS
Schema change is one of the crucial tasks in MySQL with huge tables. Schema change can cause locks. What is gh-ost? gh-ost is a triggerless online schema change for MySQL by Github Engineering .It produces light workload on the master during the schema changes . We need online schema change to alter a table … Continue reading GH-OST for MySQL Schema Change.