[Solved] You ran these commands on a new node but it failed to join the cluster: rabbitmqctl join_cluster rabbit@node1 rabbitmqctl stop_app rabbitmqctl start_app What is the main error? | RabbitMQ

RabbitMQ - Clustering

You ran these commands on a new node but it failed to join the cluster:

rabbitmqctl join_cluster rabbit@node1
rabbitmqctl stop_app
rabbitmqctl start_app

What is the main error?

AYou must stop the app before joining the cluster

BYou must start the app before joining the cluster

CThe join_cluster command is misspelled

DYou cannot join a cluster without restarting the server

Step-by-Step Solution

Solution:

Step 1: Check command order for joining cluster
The app must be stopped before running join_cluster to avoid errors.
Step 2: Identify the mistake in the sequence
Here, join_cluster was run before stopping the app, causing failure.
Final Answer:
You must stop the app before joining the cluster -> Option A
Quick Check:
Stop app first, then join cluster [OK]

Quick Trick: Always stop app before join_cluster command [OK]

Common Mistakes:

MISTAKES

Master "Clustering" in RabbitMQ

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