Broker Redundancy

Configure primary and secondary MQTT brokers for automatic failover.

Screenshot placeholder: Broker redundancy configuration

How It Works

1. Gateway connects to primary broker
2. Publishes all data normally
3. If primary fails → automatic failover to secondary
4. Background monitor checks primary availability
5. Auto-reconnect to primary when recovered

Configuration

Set Up Brokers

1. Create primary broker (see MQTT Brokers)
2. Create secondary broker
3. Test both connections

Configure Edge Node

Screenshot placeholder: Node broker selection

1. Edit edge node
2. Select Primary Broker
3. Select Secondary Broker
4. Save

Failover Behavior

Detection

• Primary connection lost
• Keep-alive timeout
• Write failure

Switchover

• Disconnect from primary
• Connect to secondary
• Publish NBIRTH to secondary
• Resume normal operation

Recovery

• Background task monitors primary
• When available, reconnect to primary
• Publish NBIRTH to primary
• Resume normal operation

Best Practices

• Use different servers for redundancy
• Test failover scenarios
• Monitor both brokers
• Keep credentials synchronized

Next Steps

• MQTT Brokers
• Edge Nodes