causal_reads
This page is part of MariaDB's Documentation.
The parent of this page is: Module Parameters for MariaDB MaxScale
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Overview
Configures read causality, reads subsequent to writes issued in manner to reduce replication lag.
DETAILS
Read/Write Split router supports read causality operations. When enabled, following write operations, MaxScale adjusts subsequent reads to reduce replication lag.
Option | Description |
|---|---|
| Disables read causality. |
| Writes visible to the connection that issues the write statement, waits for the Replica Server to catch up. Writes performed by other connections are not visible. |
| Writes visible to all connections. When one connection performs a write, all connections to the same service can see it. |
| Writes visible to the connection that issues the write statement, but does not wait for the Replica Server to catch up. Writes performed by other connections are not visible. |