On Thu, 16 May 2024, 10:37 Bowen Song via user, <user@cassandra.apache.org>

> You can also add a new DC with the desired number of nodes and num_tokens
> on each node with auto bootstrap disabled, then rebuild the new DC from the
> existing DC before decommission the existing DC. This method only needs to
> copy data once, and can copy from/to multiple nodes concurrently, therefore
> is significantly faster, at the cost of doubling the number of nodes
> temporarily.
For me it's easier the replacement of nodes one-by-one in the same DC, so
that, no any new technique... :)

Gábor AUTH

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