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#Aurora aws postgresql how to#
Reading many blog posts, discussions and guides I could understand that my code should not change, but I wasn’t quite sure how to make the RDS databases replicated data be available to the listener. Amazon Aurora is up to five times faster than standard MySQL databases and three times faster than standard PostgreSQL databases. The Percona comparison of Aurora PostgreSQL hosted on Graviton2 and x86 showed a 30% improvement in transactions per second (tps) for Graviton2 over equivalent x86 instances.To ensure that your AWS services and environments are always optimized and compliant with AWS best practices, check out CloudFix.AWS RDS Aurora is a MySQL and Postgres compatible relational database built for the cloud, it gives services such as scale, fault tolerance and more. How much better do databases perform on Graviton2? Failover to a non-Graviton 2 Instance to make it primary, then revert the Graviton2 Instance type to another type.
#Aurora aws postgresql upgrade#
You can change back to your previous instance type by following the inverse of the upgrade process.
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Therefore, when the database on the modified instance restarts, the buffer cache is cold and initial queries might take longer. Note: A change of instance type means a relocation of the instance to another hardware host, which means that the buffer cache isn’t maintained. If your application works and there are no issues, you can now migrate your other replicas one at a time.
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If you have performance insights enabled, this will give you a view of queries and waits. Validate and confirm that your application works correctly.If you don’t have at least read replicas, it is a good idea to create one temporarily, otherwise you will have cluster downtime while the instance change occurs.It is a good idea to wait a day or two to check the performance of your application and to make sure there are no problems.Promote the just upgraded read replica to the primary.Upgrade the instance type of one of the read replicas to Graviton2.( List: Aurora MySQL 2.09.2 and higher, PostgreSQL version is 11.9 and higher, 12.4 and higher, or 13.3) Determine if your current database version meets the minimum required version for moving to Graviton2.Check that your database version is supported on Graviton2, and upgrade the database if necessary:.Take a snapshot of your database – it will give you a chance to rollback your changes.Test your application for a few days, then progressively migrate other read replicas to Graviton2.Migrate a single read replica to Graviton2, and failover to make it the primary.Check that your DB version is supported on Graviton2 (if necessary, upgrade to a supported DB version).For safety, test on a non-production setup first.Take a snapshot to enable rollback if necessary.No porting or code changes are required when migrating from Intel to Graviton2 instances on Amazon RDS and Aurora.īe safe, your data is valuable – take a backup and test migration in a non-production environment first.Graviton2 processors feature always-on fully encrypted DDR4 memory and 50% faster per core encryption performance.
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