Was dieses Modul leistet

Cluster nodes manage database and application membership. They do not promise automatic workload scheduling, geographic routing or seamless autoscaling.

Vor dem Start

Private network reachability between nodes.
Administrator API token for the node being attached.
Compatible Callaba versions and a current configuration backup.

Einstellungen erklärt

Hier werden die für Operatoren relevanten Bedienelemente erklärt. Interne Feldnamen und Implementierungsereignisse bleiben bewusst verborgen.

Node identity

Describe the trusted member.

Name: Operator-facing node name.
Node type: Master, Slave or Test role supported by the UI.
Private host: Reachable private address used between nodes.
Avoid a public address when a private path is available.
API token: Administrator token used to establish trusted management.
Treat it as a secret.
Active: Lifecycle state of the registered node.

Sicherer erster Workflow

01
Back up the current configuration and verify private network connectivity.
02
Create the node with its intended role, private host and administrator token.
03
Attach the node and wait for membership to settle.
04
Start it and verify reachability plus the expected database membership.
05
Test detach and recovery procedure outside a production incident.

Workflow-Beispiele

Geeignet für

Add a trusted slave node

A self-hosted deployment needs a supported additional cluster member.

Primary nodeCurrent cluster

Private networkReachability

Slave nodeAttach + start

MembershipVerified state

Animiertes Workflow-Diagramm: Add a trusted slave node

So wird er aufgebaut

1
Confirm compatible versions, backup and private connectivity.
2
Register the Slave with its private host and token.
3
Attach and start the node in a controlled window.
4
Verify node state and database membership before using it operationally.

Ergebnis prüfen

The node is reachable over the intended private path.
Role and lifecycle state match the planned topology.
Attach/detach operations produce the expected membership state.

Fehlerbehebung

Attach fails

Prüfen

Check private reachability.
Verify the node token and version.
Confirm the role and current membership.

Dann so vorgehen

Correct trust or network prerequisites before repeating the attach action.

Cluster-Knoten