在mysql中运行多个mysql实例

Question

我想在同一台机器上的两个不同端口上使用 MySQL 服务器。 我制作了两个单独的配置文件。 当我尝试连接到我定义的第二个端口上的 MySQL 服务器时，我无法连接。 运行MySQL的操作系统是Windows Vista。 我还尝试在指定端口后从命令行启动 mysqld 。

这是我为 MySQL 服务器更改的示例文件，以便从两个不同的端口读取：

# CLIENT SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by MySQL client applications.
# Note that only client applications shipped by MySQL are guaranteed
# to read this section. If you want your own MySQL client program to
# honor these values, you need to specify it as an option during the
# MySQL client library initialization.
#
[client]

port=3306

[mysql]
mysql-path="C:\Program Files\MySQL\MySQL Server 5.1\bin"
default-character-set=latin1

[client]

port=3307

[mysql1]
mysql1-path="C:\Program Files\MySQL2\MySQL Server 5.1\bin"
default-character-set=latin1

# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this 
# file.
#
[mysqld]
mysqld-path="C:\Program Files\MySQL\MySQL Server 5.1\bin\"

# The TCP/IP Port the MySQL Server will listen on
port=3306

#Path to installation directory. All paths are usually resolved relative to this.
basedir="C:/Program Files/MySQL/MySQL Server 5.1/"

#Path to the database root
datadir="C:/ProgramData/MySQL/MySQL Server 5.1/Data/"
#
server_id=1

[mysqld1]
# The TCP/IP Port the MySQL Server will listen on
port=3307
server_id=2
mysqld1-path="C:\Program Files\MySQL2\MySQL Server 5.1\bin\"

#Path to installation directory. All paths are usually resolved relative to this.
basedir="C:/Program Files/MySQL2/MySQL Server 5.1/"

#Path to the database root
datadir="C:/ProgramData/MySQL2/MySQL Server 5.1/Data/"
#
# The default character set that will be used when a new schema or table is
# created and no character set is defined
default-character-set=latin1

# The default storage engine that will be used when create new tables when
default-storage-engine=INNODB

# Set the SQL mode to strict
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

Answer 1

最好使用 mysql_multi http://www.pythian.com/ blog/using-mysqld_multi-to-manage-multiple-servers/

配置副本是肮脏的黑客恕我直言

Answer 2

根据您的服务器/操作系统的不同，安装过程略有不同。

对于 Linux，你可能会发现这很有用 - http://code.openark.org/blog/mysql/manually-installing-multiple-mysql-instances-on-linux-howto

Google一下，你可能也会找到其他的。

Answer 3

您还需要在命令行上指定不同的datadir（即包含数据库文件的目录）。 您不能在不同的实例中打开相同的数据库，因为它们会相互锁定和/或导致数据损坏。