/etc/mysql/mysql.conf.d/mysqld.cnf
log-bin=/data/mysql-binlog/binlog
log-bin-index=/data/mysql-binlog/binlog.index
server-id=2
expire_logs_days = 7
error:
mysqld: File '/data/mysql-binlog/binlog.index' not found (Errcode: 13 - Permission denied)
resolve：
# chown mysql.mysql /data/mysql-binlog/ -R
# vim /etc/apparmor.d/usr.sbin.mysqld
# Allow data dir access #添加新的路径到此项下
/var/lib/mysql/ r,
/var/lib/mysql/** rwk,
/data/mysql-binlog/ r,
/data/mysql-binlog/** rwk,
# systemctl restart apparmor.service
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