安全性考虑:允许动态修改server_uuid可能会导致复制拓扑中的混乱和数据不一致,因此将其设置为只读可以避免这类安全问题。 自动生成机制:MySQL服务器在启动时会自动从data_dir/auto.cnf文件中读取server_uuid,如果该文件不存在,则会生成一个新的UUID并保存到文件中。这种自动生成机制确保了每个服务器实例都有一个唯一的...
[admin@obp1 ~]$ cat /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 Settings user and group are ignored when systemd is used. If you need to run mysqld under a dif...
datadir Yes Yes Yes Global No date_format Yes Global No datetime_format Yes Global No debug Yes Yes Yes Both Yes debug_sync Yes Session Yes default_authentication_plugin Yes Yes Yes Global No default_password_lifetime Yes Yes Yes Global Yes default_storage_engine Yes Yes Yes Both Yes defaul...
datadir Yes Yes Yes Global No date_format Yes Global No datetime_format Yes Global No debug Yes Yes Yes Both Yes debug_sync Yes Session Yes debug-sync-timeout Yes Yes default_authentication_plugin Yes Yes Yes Global No default_password_lifetime Yes Yes Yes Global Yes default_storage_engine...
MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database. - WL#14591 InnoDB: Make system variable `innodb_open_files` dynamic · mysql/mysql-server@b184bd3
If a server option set on the command line or in an option file differs from the name of the corresponding system variable, the variable name is noted immediately below the corresponding option. The scope of the variable (Var Scope) is Global, Session, or both. Please see the corresponding...
datadir Yes Yes Yes Global No ddl-rewriter Yes Yes debug Yes Yes Yes Both Yes debug_sync Yes Session Yes debug-sync-timeout Yes Yes default_authentication_plugin Yes Yes Yes Global No default_collation_for_utf8mb4 Yes Both Yes default_password_lifetime Yes Yes Yes Global Yes default_...
9、 limit the mysql basedir only allowed the mysql read & write we can use command “show variables like ‘datadir’; ” to select the mysql directory and use command “ls -al +basedir” to show the mysql basedir’s privileges;
S 0:00 /bin/sh /usr/bin/mysqld_safe --mysqld=mysqld --user=mysql --pid-file=/var/run/mysql/mysqld.pid --socket=/var/run/mysql/mysql.sock --default-authentication-plugin=sha256_password --datadir=/var/lib/mysql 14311 ? Sl 0:00 /usr/sbin/mysqld --basedir=/usr --datadir=/va...
datadir Section 5.1.4, “Server System Variables” date_format Section 5.1.4, “Server System Variables” datetime_format Section 5.1.4, “Server System Variables” debug Section 5.1.4, “Server System Variables” debug_sync Section 5.1.4, “Server System Variables” default_storage_engine Sectio...