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john.xi_136199 asked Erick Ramirez answered

Is it necessary to run nodetool repair in DS210: Exercise 01.04 Step 5 ?

Exercise 01.04: Add and Remove a Node to and from the Cluster

Step 5: Re-introduce the New Node to the Cluster

5) Once the additional node is Up and Normal (i.e., UN), make certain the node has all the

data by running repair. In the ds210-node3 window, run:

nodetool repair

Is it necessary to run nodetool repair?

as the command below has been executed in 1), re-introducing the new node should be like adding a new node.

sudo sh -c 'rm -rf /var/lib/cassandra/*'

ds210
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Erick Ramirez answered

Under normal circumstances, no. It isn't necessary to run a repair after bootstrapping a node.

However, the exercise is not a normal procedure for changing the topology of a cluster. It was intended to illustrate a specific scenario. Cheers!

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