--upgrade=NONE MySQL跳过升级步骤,可能会导致报错 --upgrade=MINIMAL MySQL在必要时升级数据字典表,information_schema和information_schema。这可能会导致部分功能不能正常使用,例如MGR --upgrade=FORCE MySQL会升级所有的内容,这会检查所有schema的所有对象,导致MySQL需
1、in-place upgrade(适合小版本的升级) 关闭当前的MySQL,替换原来的安装目录和my.cnf配置文件,mysql_upgrade脚本升级数据字典,在现有的数据目录上重启MySQL, 特点:不改变数据文件,升级速度快;这种方式先停掉数据库,在进行升级操作,所以停机时间长;但,不可以跨操作系统,不可以跨大版本(5.5—>5.7). 2、logical upg...
NOTE:如果没有问题则启动完成,我遇到的问题是,mysqld_safe需要在文件夹(/usr/local/mysql57)内执行 运行mysql_upgrade ./bin/mysql_upgrade -uroot --socket=/var/lib/mysql.sock 1. 简单说一下升级的过程,mysql_upgrade首先检查系统库并修复,检查并安装sys库,performance库。但并没有移除5.1默认的test库。然后...
除了介质,升级的方法也有 2 种:一种是 IN-PLACE 方式(适用于数据量较大、小版本或连续版本的升级),另一种是逻辑方式(适用于数据量小、跨越大版本的升级)。 对于大数据库,即便是采用 IN-PLACE 方式升级,也可能会花费较长时间,因为执行 mysql_upgrade 时,默认也会对业务表进行数据转换和修复(这个问题在客户那儿...
The LOGICAL upgrade involves exporting SQL from the MySQL 5.7 version using a backup or export utility such as mysqldump or mysqlpump, installing the MySQL 8.0 binaries, and then applying the SQL to the new MySQL version. The INPLACE upgrade is faster than the LOGICAL upgrade since it does ...
(3)直接执行mysql_upgrade命令升级会失败 [root@localhost mysql-5.6.22]# mysql_upgrade -uroot -pEnter password: Lookingfor'mysql'as: mysql Lookingfor'mysqlcheck'as: mysqlcheck FATAL ERROR: Upgrade failed 1. 2. 3. 4. 5. (4)以忽略授权的方式来启动MySQL(本案例中数据文件位置为/opt/mysql_data...
是否需要手动升级系统表。在MySQL8.0.16版本之前,需要手动的执行mysql_upgrade来完成该步骤的升级,在MySQL 8.0.16版本及之后是由mysqld来完成该步骤的升级。 2.具体升级过程 下面以Linux系统为例,展示下具体升级过程。我的系统是CentOS7.7,原版本是MySQL5.7.23,以In-Place方式直接升级到MySQL8.0.19。
directly related to the update is written to the logs and were wondering if some kind of issue is potentially slowing down the progress. In the following example, the upgrade took nearly 2 hours and 40 minutes. I am not sure if this is the expected timeframe for this kind of upgrade. ...
Upgrade PathPath ExamplesSupported Upgrade Methods Within an LTS or Bugfix series8.0.37 to 8.0.41 or 8.4.0 to 8.4.4In-place upgrade,logical dump and load,replication, andMySQL Clone From an LTS or Bugfix series to the nextLTS series8.0.37 to 8.4.x LTSIn-place upgrade,logical dump and...
Upgrade of the slave and / or master while replication is running is not recommended. On the master, an upgrade should be done with binary log disabled, which is already enforced. On the slave, mysql-upgrade never enables replication, so that in-place scenario with replication running can not...