Aurora Quiz
A company is migrating an on-premises 10TB MySQL database to AWS. With a business requirement that the replica lag be under 100 milliseconds, the company expects this database to quadruple in size.
Which Amazon RDS engine meets the above requirements?
A. MySQL
B. Microsoft SQL Server
C. Oracle
D. Amazon Aurora
D. Amazon Aurora
AWS Documentation clarifies that the above requirements are supported by AWS Aurora.
Amazon Aurora (Aurora) is a fully managed, MySQL- and PostgreSQL-compatible, relational database engine. It combines the speed and reliability of high-end commercial databases with the simplicity and cost-effectiveness of open-source databases. It delivers up to five times the throughput of MySQL and up to three times the throughput of PostgreSQL without requiring changes to most of your existing applications.
All Aurora Replicas return the same data for query results with minimal replica lag—usually much less than 100 milliseconds after the primary instance has written an update.
For more information on AWS Aurora, please visit the following URL:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Aurora.Overview.html
The company expects the database to quadruple in size and the business requirement is that replica lag must be kept under 100 milliseconds.
Aurora Cluster can grow up to 64 TB in size and replica lag—is less than 100 milliseconds after the primary instance has written an update.
