Question-138: When you add a new node to (v-node enabled) cluster. Token ranges are re-arranged. Which of the following would help in cleaning the data from existing node. Which is now taken care by new node?

  1. You should run “nodetool compact” command on the source node and neighboring nodes that shared the same subrange after the new node is up and running.
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Ans : C

Exp : When you add a new node to the cluster. Then token ranges should re-arrange and new node should start handling the read-write request as per the its own token range. Once bootstrapping is completed (means new node joined up and running) then old node which were having the data (which are not belong to this node) should be cleaned.

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