Had a master mysql on (windows) improper shutdown. Many records could not be recovered and investigation found slave had records master did not have. Did not restore over master - left as was. As if by magic, about 6 weeks later the missing data from master re-appeared on the master, and now master>slave agree, with some lingering discrepancies. We're talking thousands of rows across many schemas and many tables within each schema. Looking for theories and data mining is not revealing much of anything. 1st question is knowing MySQL tries to automatically recover data, could something have happened where mysql cached it, then released it 6 weeks later. Anybody encountered this or any known issues like this?
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