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While trying to backup all MySQL databases with mysqldump I get the following error:

Couldn't execute 'show events': Access denied for user 'user'@'localhost' to database 'performance_schema'

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related: serverfault.com/questions/268566/… –  rubo77 Nov 20 '13 at 11:49

2 Answers 2

up vote 3 down vote accepted

This is a virtual database so you will need to add the option --skip-events to make it work.

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'performance_schema' is a virtual database so you don't have to backup it
(see http://dev.mysql.com/doc/refman/5.5/en/performance-schema.html )

to skip it in your backup script use it like this:

DATE=$(date +%Y-%m-%d)
for i in /var/lib/mysql/*/; do
    if [ $i != "$MYSQLPATH"'performance_schema/' ] ; then 
        dbname=`basename "$i"` 
        mysqldump -u root "$dbname" | gzip > $BAK/"$dbname"-$DATE.sql.gz

# optionally delete old backups of databases that don't exist anymore
# find $BACKUP_DIR -atime +30 -exec rm {} \;
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+1 I was actually using this in a similar script, but I haven't specify in my question. Anyway, good sharing. –  Adrian Ber Nov 25 '13 at 11:31

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