自动化安装多实例mysql5.1.55脚本

因线上的生产环境用的大多是mysql5.1.55的版本，故本脚本暂时只支持5.1.55

5.6以上的版本的Mysql使用cmake进行安装，后续完成后会提供。。。。

脚本提供了一个默认系统版本相同的前提下直接解压缩打好包的mysql的方式，应用于生产环境的快速部署中的，请无视。。。。

#!/bin/bash
#mysql_multi.sh
#Version:0.7
#Author:LvrenX
#Usage:mysql_multi.sh [PORT1] [PORT2]...[PORTN] Example: mysql_multi.sh 3306 3307
#Description: [0.2] Append Puppet Transfer
# [0.3] Append Config Check
# [0.4] Perfect Compiler Options And Unified Version
# [0.5] Change Database Path And Append Config Items 20130216
# [0.6] Config File Remove Repeat 20130219
# [0.7] Support Green Installation 20130220
#Datatime:20130220

#variables
MYSQL_PATH=/usr/local/mysql
CONFIG_FILE=/etc/my.cnf
PASSWORD=passwd
MYSQL_VERSION=mysql-5.1.55.tar.gz
DATA_PATH=/data/mysql

CONFIG=`cat <<EOF
[mysqld_multi]
mysqld = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
user = root
password = ${PASSWORD}
EOF
`

#check mysql server
if [ -d "${MYSQL_PATH}" ];then
echo "Service Mysql has Installed!"
exit 0
else
if [ -f "${CONFIG_FILE}" ];then
echo "${CONFIG_FILE} has existed! Renamed It With ${CONFIG_FILE}.bak!"
mv ${CONFIG_FILE} ${CONFIG_FILE}.bak
else
echo "Begin To Install MYSQL With Multi Instances!"
fi
fi

cd /home
yum -y install ncurses-devel
groupadd mysql
useradd -g mysql -s /sbin/nologin -M mysql

if [ -f "/home/mysql-GI.tar.gz" ];then
echo "-=-=-=-=-=-=-=-=-=-= Install Mysql With Portable Software Suit =-=-=-=-=-=-=-=-=-=-"
mv /home/mysql-GI.tar.gz /usr/local/
cd /usr/local
tar zxvf mysql-GI.tar.gz
else
echo "-=-=-=-=-=-=-=-=-=-= Install Mysql With Compile And Install =-=-=-=-=-=-=-=-=-=-"
#install mysql
if [ -f "/home/${MYSQL_VERSION}" ];then
echo "${MYSQL_VERSION} has existed!"
else
wget http://downloads.skysql.com/archives/mysql-5.1/${MYSQL_VERSION} fi
tar -zxvf ${MYSQL_VERSION}
cd mysql-5.1.55
./configure --prefix=${MYSQL_PATH} --without-debug --with-unix-socket-path=/tmp/mysql.sock --enable-static --with-big-tables --with-charset=utf8 --with-extra-charsets=all --with-plugins=all --enable-assembler --with-client-ldflags=-all-static --with-mysqld-ldflags=-all-strtic --enable-thread-safe-client
#Optional configuration
# --without-debug ##去除debug模式
# --with-unix-socket-path=/tmp/mysql.sock ##在unix环境下的套接字链接提高7.5%性能
# --enable-static ##静态编译，能够提高13%的性能
# --with-big-tables ##大表支持，支持更多数据
# --with-charset=utf8 ##客户端默认连接方式编码
# --with-extra-charsets=all ##添加各种字符支持
# --with-plugins=all ##存储引擎
# --enable-assembler ##使用一些字符函数的汇编版本（优化性能）
# --with-client-ldflags=-all-static ##静态方式编译客户端
# --with-mysqld-ldflags=-all-strtic ##静态方式编译服务端
# --enable-thread-safe-client ##以线程的方式编译客户端
make && make install
mkdir ${MYSQL_PATH}/var
chown mysql.mysql ${MYSQL_PATH}/var
${MYSQL_PATH}/bin/mysql_install_db --user=mysql
${MYSQL_PATH}/bin/mysqladmin password ${PASSWORD}
#change config
sed '/^#/d' ${MYSQL_PATH}/share/mysql/my-medium.cnf >${MYSQL_PATH}/share/mysql/my-multi.cnf
sed -i '/mysql.sock$/a skip-innodb' ${MYSQL_PATH}/share/mysql/my-multi.cnf
chown mysql.mysql ${MYSQL_PATH}/share/mysql/my-multi.cnf
fi

if [ `cat /etc/profile|grep -c "${MYSQL_PATH}"` == 0 ];then
echo "export PATH=\$PATH:${MYSQL_PATH}/bin" >>/etc/profile
source /etc/profile
else
echo "The Envionment Variable Exists!"
fi

source /etc/profile

i=$#

if [ ${i} -eq 0 ];then
echo "Please Input Mysql Port At Least One!"
exit 0
else
echo "${CONFIG}"|while read line;do
echo "${line}" >>${MYSQL_PATH}/share/mysql/my-multi.cnf
chown mysql.mysql ${MYSQL_PATH}/share/mysql/my-multi.cnf
#Change Mysql Database Path
mkdir -p ${DATA_PATH}
cp -r ${MYSQL_PATH}/var ${DATA_PATH}/
chown -R mysql.mysql /data
done
for ((j=1;j<=i;j++))
do
cp -r ${DATA_PATH}/var ${DATA_PATH}/var${j}
chown -R mysql.mysql ${DATA_PATH}/var${j}

PORT=`echo $@|awk -v num="$j" '{print $num}'`
CONFIG_MULTI=`cat <<EOF

[mysqld${j}]
skip-name-resolve
skip-innodb
socket = /tmp/mysql.sock${j}
port = ${PORT}
pid-file = ${DATA_PATH}/var${j}/mysqld.pid${j}
datadir = ${DATA_PATH}/var${j}

log-slow-queries=${DATA_PATH}/var${j}/slowquery.log
long_query_time=5
log-queries-not-using-indexes

#server-id=
#log-bin=mysql-bin
#binlog_format=mixed
#expire_logs_days=
#replicate|binlog-do-db=
#replicate|binlog-ignore-db=mysql
#master-connect-retry=60
#log-slave-updates
#slave-skip-errors=all

skip-external-locking
key_buffer_size = 384M
max_allowed_packet = 10M
table_open_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
thread_concurrency = 8
concurrent_insert = 2
`
echo "${CONFIG_MULTI}"|while read LINE;do
echo "${LINE}" >>${MYSQL_PATH}/share/mysql/my-multi.cnf
done
${MYSQL_PATH}/bin/mysqld_multi --defaults-extra-file=${MYSQL_PATH}/share/mysql/my-multi.cnf start ${j}
if [ `cat /etc/rc.local|grep -c "start ${j}"` == 0 ];then
echo "${MYSQL_PATH}/bin/mysqld_multi --defaults-extra-file=${MYSQL_PATH}/share/mysql/my-multi.cnf start ${j}" >>/etc/rc.local
else
echo "This Startup Item Exists!"
fi
done
fi

echo "-=-=-=-=-=-=-=-=-=-= Mysql Install Complete! =-=-=-=-=-=-=-=-=-=-"
#clear
rm -rf ${DATA_PATH}/var
rm -rf /home/${MYSQL_VERSION}
rm -rf /home/mysql-5.1.55
rm -rf $0

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