MDB Cluster Scaler

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Remove node

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Safe remove for read traffic: hide member → wait for active ops to finish → then remove from replica set.

Change votes / priority

Raising priority helps a secondary win the next election. Votes must stay odd-majority safe.

Add secondary node

New members join with votes: 0 / priority: 0. Failed launches auto-terminate the EC2.

Clone AMI, architecture, instance type, networking, and volume from the current cluster EC2s.

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