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#!/bin/bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/opt/bin:/opt/sbin:~/bin
export PATH

# Check if user is root
if [ $(id -u) != "0" ]; then
    echo "Error: You must be root to run this script, please use root to install"
    exit 1
fi

# Check the network status
NET_NUM=`ping -c 4 www.baidu.com |awk '/packet loss/{print $6}' |sed -e 's/%//'`
if [ -z "$NET_NUM" ] || [ $NET_NUM -ne 0 ];then
        echo "Please check your internet"
        exit 1
fi

if [ -s /usr/local/mysql ];then
	echo -e "\033[40;31m mysql [found]\033[40;37m"
else
	exit 1
fi

if [ -s jemalloc-4.5.0.tar.bz2 ];then
	echo -e "\033[40;31m jemalloc [found]\033[40;37m"
else
	wget http://download.slogra.com/tcmalloc/jemalloc-4.5.0.tar.bz2
fi

yum -y install libaio libaio-devel bzip2 gcc gcc-c++ make

tar jxf jemalloc-4.5.0.tar.bz2
cd jemalloc-4.5.0
./configure
make -j4 && make install

echo '/usr/local/lib' > /etc/ld.so.conf.d/local.conf
ldconfig

sed -i 's@executing mysqld_safe@executing mysqld_safe\nexport LD_PRELOAD=/usr/local/lib/libjemalloc.so@' /usr/local/mysql/bin/mysqld_safe

service mysqld restart

#cd /root
#lsof -n | grep jemalloc

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标签: mysql 安装 优化 shell install jemalloc