Keyspace replication settings
Keyspaces now support several new configuration options.
Replication durability constraints
Replication is configured to maximize safety and data integrity. This default configuration can be relaxed for performance improvements and reduced replication lag.
- Maximum: Default setting that applies maximum durability constraints.
- Dynamic: Use maximum durability constraints when replication lag is under 5s, and automatically relax durability constraints when replication lag exceeds 5s.
- Minimum: Optimizes for replica and read-only performance, but has the highest risk of data loss on crashed instances.
VReplication settings
These settings improve performance during VReplication processes like deploy requests and workflows.
- Optimize inserts: Skips sending insert events for rows that have yet to be copied during binlog replication catch-up.
- Allow NOBLOB binlog row image: Supports enabling MySQL’s NOBLOB binlog mode to omit unchanged BLOB and TEXT columns from replication events, reducing binlog size.
- Batch binlog statements: Batches binlog statements and transactions to limit the number of round trips to MySQL.
Learn more in our cluster configuration documentation.