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InnoDB: If the MySQL server halted at a precise moment when a purge operation was being applied from the change buffer, the operation could be incorrectly performed again during the next restart. A workaround was to set the configuration option innodb_change_buffering=changes, to turn off change buffering for purge operations. (Bug #16183892, Bug #14636528)
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5.5.31 seems to have fixed for purge as well
" change_ buffering= changes, to turn off change buffering for purge operations. (Bug #16183892, Bug #14636528)
InnoDB: If the MySQL server halted at a precise moment when a purge operation was being applied from the change buffer, the operation could be incorrectly performed again during the next restart. A workaround was to set the configuration option innodb_
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