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What is the difference between Amazon Aurora and MySQL?
Aurora is intended for performance with cloud servers, while MySQL is designed to run on physical machines and may not be optimized for virtual machine performance. Amazon asserts Aurora is five times faster than standard MySQL databases and three times faster than PostgreSQL databases when used in the cloud.
Is Aurora MySQL case sensitive?
1 (“names stored in lowercase and comparisons are not case-sensitive”) is supported for Amazon RDS for MySQL version 5.6, version 5.7, and version 8.0.
What is DBInstanceClassMemory?
DBInstanceClassMemory. Returns the number of bytes of memory allocated to the DB instance class associated with the current DB instance, less the memory used by the Amazon RDS processes that manage the instance.
What is the difference between Amazon RDS and Aurora?
Unlike Amazon RDS for PostgreSQL, where high write workloads can severely impact replication, Aurora uses shared storage for writer and readers. As a result, all Aurora replicas are synced with the writer instance with minimal replica lag. The lag can be different for different replicas.
How does Amazon Aurora compare to MySQL Community Edition?
Aurora MySQL is a relational database engine that combines the speed and reliability of high-end commercial databases with the simplicity and cost-effectiveness of open-source databases. It also delivers up to five times the throughput of the standard MySQL community edition.
Are there any known issues with Amazon RDS for MySQL?
Known issues and limitations for working with Amazon RDS for MySQL are as follows. For MySQL 5.7, there is currently a bug in the way that the InnoDB buffer pool size is managed.
What’s the maximum row size in Aurora MySQL?
The maximum row length in Aurora MySQL, excluding variable-length data, is a little less than 8 KB in size (half of the data page). The database manages pages to maintain storage efficiency, without sacrificing performance.
What’s the maximum number of unique values Amazon Aurora can support?
The maximum number of unique values supported by your primary key or unique key choice. For example, if you use an unsigned INT data type for the primary key (a popular choice), your table supports a maximum of 2 32 or a little over 4.29 billion rows. The number and size of your secondary indexes.