The Ultimate Guide to High Availability with MariaDB
This is a read-only copy of the MariaDB Knowledgebase generated on 2025-05-01. For the latest, interactive version please visit https://mariadb.com/kb/.

Understanding Monitors in MaxScale

Contents

  1. Overview
  2. Monitors Supported by MaxScale

Overview

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 TypeMonitor
MariaDB ReplicationMariaDB Monitor (mariadbmon)
Galera ClusterGalera Monitor (galeramon)
Multi-Node Enterprise ColumnStoreMariaDB Monitor (mariadbmon)
ColumnStore 1.2ColumnStore Monitor (csmon)
XpandXpand Monitor (xpandmon)
Amazon AuroraAurora Monitor (auroramon)
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