step2.md

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Configure and start a node to join the cluster

In this step you will configure a new node to join the cluster. The new node will not use vnodes. Disable vnodes by setting num_tokens to 1 and defining an initial_token in `cassandra.yaml1

✅ Open /workspace/ds201-lab07/node2/conf/cassandra.yaml in a nano or the text editor of your choice.

nano /workspace/ds201-lab07/node2/conf/cassandra.yaml

In the file find:

num_tokens

Set the value to 1 so the new does not use vnodes.

In the same file find:

# initial_token:

Un-comment and change initial_token value setting it to -9223372036854775808. Since node1 has 16 vnodes and node2 has 1 node, This will allow node2 to manage half of the token range – all of the positive tokens and one negative token of -9223372036854775808

The new entry should look like:

initial_token: -9223372036854775808

Save and exit the editor.

✅ Start the new node:

/workspace/ds201-lab07/node2/bin/cassandra

Use nodetool to verify that both nodes are running. You may need to run this command multiple times.

✅ Verify that the clustered servers are running.

nodetool status

• Both nodes should be Up and Normal.
• The node listening at 127.0.0.1 should have 16 tokens
• The node listening at 127.0.0.2 should have 1 token
• You should also see that Owns significantly more of the data

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