安装MySQL和HandlerSocket

CentOS 6.5
MySQL 5.6.33
HandlerSocket 1.1.2

# Get packages
shell> wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.33.tar.gz
shell> wget -O handlerSocket-1.1.2.tar.gz https://github.com/DeNA/HandlerSocket-Plugin-for-MySQL/archive/1.1.2.tar.gz

## MySQL
# System Requirements
shell> sudo yum install cmake make gcc gcc-c++ perl ncurses-devel bison libtool
shell> sudo mv /etc/my.cnf /etc/my.cnf.bak (dependes)

# Preconfiguration setup
shell> sudo groupadd mysql
shell> sudo useradd -r -g mysql -s /bin/false mysql

# Beginning of source-build specific instructions
shell> tar zxvf mysql-5.6.33.tar.gz
shell> cd mysql-5.6.33
shell> cmake .
shell> make
shell> sudo make install
# End of source-build specific instructions

# Postinstallation setup
shell> cd /usr/local/mysql
shell> sudo chown -R mysql:mysql .
shell> sudo scripts/mysql_install_db --user=mysql
shell> sudo chown -R root .
shell> sudo chown -R mysql data
shell> sudo bin/mysqld_safe --user=mysql &
# Next command is optional
shell> sudo cp support-files/mysql.server /etc/init.d/mysqld

## HandlerSocket
# Build Handlersocket
shell> tar zxvf handlerSocket-1.1.2.tar.gz
shell> cd HandlerSocket-Plugin-for-MySQL-1.1.2
shell> ./autogen.sh
shell> ./configure --with-mysql-source=/home/susl/tools/mysql-5.6.33 --with-mysql-bindir=/usr/local/mysql/bin --with-mysql-plugindir=/usr/local/mysql/lib/plugin
shell> make
shell> sudo make install

# Using Handlersocket
shell> sudo sh -c "echo '[mysqld]
loose_handlersocket_port = 9998
loose_handlersocket_port_wr = 9999
loose_handlersocket_threads = 16
loose_handlersocket_threads_wr = 1
open_files_limit = 65535
' >> /usr/local/mysql/my.cnf"
# Log in to mysql as root
mysql> install plugin handlersocket soname 'handlersocket.so';

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附1：二进制包/源码安装方式的MySQL卸载
1.关闭MySQL服务进程
shell> sudo service mysqld stop
2.查找MySQL的安装目录并彻底删除
#系统自带的mysql-libs包不要卸载，对应目录不要删掉：/usr/share/mysql, /usr/lib64/mysql
shell> sudo find / -name mysql
shell> sudo rm -rf xxx ...
3.视情况删除配置文件my.cnf
4.视情况删除MySQL用户以及用户组

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附2：配置MySQL的错误日志目录和PID存放目录

编辑my.cnf，加入以下配置信息：

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid