idea快捷键 [ windows https://blog.csdn.net/deniro_li/article/details/72902621 ]
idea快捷键 [ mac https://blog.csdn.net/as300403/article/details/79216706 ]
4. hadoop2.5.2,参照文档 http://hadoop.apache.org/docs/r2.5.2/index.html
5. zookeeper-3.4.6,参照文档 http://zookeeper.apache.org/doc/r3.4.12/
Centos7中查看ip的命令为ip a
编辑文件 /etc/sysconfig/network-scripts/ifcfg-ens33
参照https://blog.csdn.net/qq_31343581/article/details/80833912
Centos7中默认的防火墙是firewall https://blog.csdn.net/Post_Yuan/article/details/78603212
//临时关闭
systemctl stop firewalld
//禁止开机启动
systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
建议修改为163的yum源,方法自行百度
使用ntpdate,网上搜一个时间服务器假设为xxxx.xxxx.xxxx
ntpdate xxxx.xxxx.xxxx
失败了的话,详细参考这篇文章 [ https://blog.csdn.net/qq_27754983/article/details/69386408 ]