Question

If I setup mysql master slave replication and master restarted, what will happen? will slave become master & master become slave?

If I want the master to be slave after restart, what should I do? Will the slave become new master? If this new master also restarts, will this restores old condition?


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In a 2 server MySQL setup with Master/Slave replication if the master server goes down the slave becomes the master as it now has the most recently updated data.

There is some good information on this here if you want to read more.