The original MyRocks was developed by Facebook and works with their implementation of MySQL. Percona MyRocks is a branch of MyRocks for Percona Server and includes the following differences from the original implementation:
The behavior of the START TRANSACTION WITH CONSISTENT SNAPSHOT statement
depends on the transaction isolation level.
| Storage Engine | Transaction isolation level | |
READ COMMITTED |
REPEATABLE READ |
|
| InnoDB | Success | Success |
| Facebook MyRocks | Fail | Success (MyRocks engine only; read-only, as all MyRocks engine snapshots) |
| Percona MyRocks | Fail with any DML which would violate the read-only snapshot constraint | Success (read-only snapshots independent of the engines in use) |
Percona MyRocks includes the lz4 and zstd
statically linked libraries.
For general inquiries about our open source software and database management tools, please send us your question and someone will contact you.
