Understanding MySQL Replication "fatal error 1236": "Replica has more GTIDs than the source has, using the source's SERVER_UUID" (from J-F Gagné's MySQL Blog)
This MySQL replication error — fatal error 1236 / Replica has more GTIDs than the source has, using the source's SERVER_UUID — shows the importance of thinking before acting. I am glad a non-DBA Colleague asked me about it, because if he had restarted replication, it would have caused a much bigger mess.
Often, we are tempted — or pushed — to just restart things
[...]
