系统初始化

yum remove *jdk* -y

#修改selinux以及修改最大文件打开数
echo -e "root soft nofile 65535
root hard nofile 65535
* soft nofile 65535
* hard nofile 65535" >> /etc/security/limits.conf
echo -e "*          soft    nproc     65535
root       soft    nproc     unlimited" > /etc/security/limits.d/90-nproc.conf


#挂载磁盘
mkfs.ext4 /dev/sdc
mkdir /data
echo -e "/dev/sdc                    /data                   ext4    defaults        0 0" >> /etc/fstab
mount -a

#二进制安装jdk
mkdir /usr/local/java
tar -xf jdk1.7.0_80.tar.gz
chmod -R 777 jdk1.7.0_80/*

vim /etc/profile.d/jdk.sh
export JAVA_HOME=/usr/local/java/jdk1.7.0_80
export JRE_HOME=/usr/local/java/jdk1.7.0_80/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$PATH

#关闭防火墙以及selinux

service iptables stop
chkconfig iptables off

sed -i 's/SELINUX=enforcing/SELINUX=disabled/ig' /etc/selinux/config