MongoDB -whats the safest and most efficient way to change from Master-Slave to ReplicaSet?

DevOps SysAdmins: MongoDB -whats the safest and most efficient way to change from Master-Slave to ReplicaSet? Helpful? Please support me on Patreon: With thanks praise to God and with thanks to the many people who have made this project possible! Content except music images licensed under CC BY-SA Music: Images: others With thanks to user SecondThought serverfault.comusers121682 user Adam C serverfault.comusers108132 and the Stack Exchange Network serverfault.comquestions396369. Trademarks are property of their respective owners. Disclaimer: All information is provided AS IS without warranty of any kind. You are responsible for your own actions. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com,

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