在Mac OS X v10.6 (Snow Leopard)上,启动MySQL会出现以下错误:
服务器退出,没有更新PID文件
文件my.cnf
[mysqld]
port = 3306
socket = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16K
pid-file=/var/run/mysqld/mysqld.pid
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
对我来说,解决方案是覆盖/纠正/etc/my/cnf中的数据目录
我用自述文件中提供的说明从源代码构建MySQL 5.5.27:
# Preconfiguration setup
shell> groupadd mysql
shell> useradd -r -g mysql mysql
# Beginning of source-build specific instructions
shell> tar zxvf mysql-VERSION.tar.gz
shell> cd mysql-VERSION
shell> cmake .
shell> make
shell> make install
# End of source-build specific instructions
# Postinstallation setup
shell> cd /usr/local/mysql
shell> chown -R mysql .
shell> chgrp -R mysql .
shell> scripts/mysql_install_db --user=mysql
shell> chown -R root .
shell> chown -R mysql data
# Next command is optional
shell> cp support-files/my-medium.cnf /etc/my.cnf
shell> bin/mysqld_safe --user=mysql &
# Next command is optional
shell> cp support-files/mysql.server /etc/init.d/mysql.server
Mysqld_safe在没有解释的情况下自行终止。运行/etc/init.d/mysql.服务器启动导致错误:
服务器退出没有更新PID文件
I noticed something odd in the installation instructions though. It has ownership changed to mysql for the directory "data", but not to "var"; this is unusual because for years I have had to ensure that var directory was mysql writable. So I manually ran chown -R mysql /usr/local/mysql/var and then attempted to start it again. Still no luck. But worse, no .err file in the var dir - it was in the "data" dir! so scripts/mysql_install_db sets up camp in /usr/local/mysql/var, but the rest of the application seems to want to do its work in /usr/local/mysql/data!
所以我只是编辑了/etc/my.cnf,在部分[mysqld]下,我添加了一个指令,显式地将mysql的数据目录指向var(因为我通常期望它是任何方式),这样做之后,mysqld启动得很好。add指令看起来像这样:
数据= /usr/地方/mysql/var
为我工作。希望对你有所帮助。
我使用
全新的MacBook Pro,搭载OS X v10.7.3操作系统。x(狮子)
通过OS X GCC安装程序
我使用Homebrew ('brew install MySQL ')安装MySQL。它安装了几个依赖项,然后安装了MySQL。
当我试着启动它时,
mysql.server start
Starting MySQL
.. ERROR! The server quit without updating PID file (/usr/local/var/mysql/west.local.pid).
我执行这个命令,
/usr/local/Cellar/mysql/5.5.25/scripts/mysql_install_db
和MySQL工作。
请注意,您需要从MySQL目录的顶层运行mysql_install_db(例如,usr/local/Cellar/ MySQL /5.5.25)。直接在/scripts目录中运行它并不能为它提供足够的上下文来运行它。
请按照brew install mysql的说明安装mysql。
设置数据库以您的用户帐户运行:
对于MySQL 5.x:
unset TMPDIR
mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
要在另一个文件夹中设置基表,或者使用不同的用户运行mysqld,请查看mysqld_install_db的帮助:
mysql_install_db --help
查看MySQL文档:
4.4.3 mysql_install_db -初始化MySQL数据目录
2.10.4 MySQL初始帐户安全
对于MySQL 8.x:
unset TMPDIR
mysqld --initialize-insecure --log-error-verbosity --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
确保上面的数据目录/usr/local/var/mysql为空。必要时备份。
例如,要以“mysql”用户运行,你可能需要sudo:
sudo mysql_install_db ...options...
手动启动mysqld:
mysql.server start
注意:如果失败,您可能忘记运行上面的前两个步骤