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An error occurred while upgrading MySQL, 4.0 to 5.1.

Source: Internet
Author: User
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Database data volume surges. Compared with databases similar to other services, the data volume of a table is abnormal. Finally, a duplicate data migration bug is identified...
 
 
120301 17:30:43 [ERROR] Column count of mysql. db is wrong. Expected 22, found 15. The table is probably upted
120301 17:30:43 [ERROR] mysql. user has no 'event _ priv' column at position 29
120301 17:30:43 [ERROR] Event schedles: An error occurred when initializing system tables. Disabling the Event Scheduler.
 
 
4.0 upgrade 5.1 SA engineer forgot when writing automatic script shi./bin/mysql_upgrade-u root-p -- sock =/tmp/mysql5.sock

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