Understanding Monitors in MaxScale

In MariaDB MaxScale, monitors perform the following tasks:

• Deciding whether a server is up or down.

• Deciding whether a server is the primary server or a replica server.

• Performing automatic failover when the primary server fails (for certain kinds of deployments).

Monitors Supported by MaxScale

MaxScale supports different monitors for different kinds of deployments:

Deployment Type	Monitor
Deployment Type	Monitor
MariaDB Replication	MariaDB Monitor (mariadbmon)
Galera Cluster	Galera Monitor (galeramon)
Multi-Node Enterprise ColumnStore	MariaDB Monitor (mariadbmon)
ColumnStore 1.2	ColumnStore Monitor (csmon)
Xpand	Xpand Monitor (xpandmon)
Amazon Aurora	Aurora Monitor (auroramon)

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