二、Ambari集群的网络配置

企业级大数据平台Ambari搭建与管理

本节中我们将介绍Ambari集群的网络配置

其中涉及到静态IP配置、XShell批量管理集群

在vSphere上本地登录到Hadoop01服务器上：

配置静态IP

[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens160


将 BOOTPROTO=dhcp 改为 BOOTPROTO=static
将 OnBOOT=no 改为 OnBOOT=yes
在末尾添加如下内容：
IPADDR=192.168.10.101
NETMASK=255.255.255.0
GATEWAY=192.168.10.1
DNS1=192.168.10.1


重启网络服务：

[root@localhost ~]# service network restart
Restarting network (via systemctl): [ OK ]


测试与外网的连通情况：

[root@localhost ~]# ping baidu.com -c 4
PING baidu.com (123.125.115.110) 56(84) bytes of data.
64 bytes from 123.125.115.110 (123.125.115.110): icmp_seq=1 ttl=128 time=38.0 ms
64 bytes from 123.125.115.110 (123.125.115.110): icmp_seq=2 ttl=128 time=37.0 ms
64 bytes from 123.125.115.110 (123.125.115.110): icmp_seq=3 ttl=128 time=48.7 ms
64 bytes from 123.125.115.110 (123.125.115.110): icmp_seq=4 ttl=128 time=42.4 ms
--- baidu.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 37.020/41.561/48.718/4.600 ms


安装网络工具

由于我们是Minimal安装的，所以没有网络工具（比如ifconfig），我们需要安装一下网络工具。

[root@localhost ~]# yum install -y net-tools
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package net-tools.x86_64 0:2.0-0.22.20131004git.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==================================================================================================================================================================================
Package Arch Version Repository Size
==================================================================================================================================================================================
Installing:
net-tools x86_64 2.0-0.22.20131004git.el7 base 305 k
Transaction Summary
==================================================================================================================================================================================
Install 1 Package
Total download size: 305 k
Installed size: 917 k
Downloading packages:
net-tools-2.0-0.22.20131004git.el7.x86_64.rpm | 305 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1
Verifying : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1
Installed:
net-tools.x86_64 0:2.0-0.22.20131004git.el7
Complete!


检查一下本机的IP情况：

检查本机IP是否与预计的一致。

[root@localhost ~]# ifconfig
ens160: flags=4163 mtu 1500
inet 192.168.10.101 netmask 255.255.255.0 broadcast 192.168.10.255
inet6 fe80::16a9:f517:a5d9:78ac prefixlen 64 scopeid 0x20
ether 00:50:56:ac:63:f4 txqueuelen 1000 (Ethernet)
RX packets 6883099 bytes 9778926079 (9.1 GiB)
RX errors 0 dropped 338 overruns 0 frame 0
TX packets 2929337 bytes 396757749 (378.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 32 bytes 2592 (2.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 32 bytes 2592 (2.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0


到这里Hadoop01这台服务器的静态IP就配置好了。

将其他9台服务器也安装以上方法进行修改，注意对应的IP地址。

使用XShell批量连接到我们的服务器上，实现简单、方便、统一的配置后面所需要的服务。

我们连接上10台服务器：

我们使用“发送键输入到所有回话功能”，实现所有节点统一进行配置。

此步骤中所有操作都使用“发送键输入到所有回话功能”进行配置:

修改主机名

[root@localhost ~]# hostnamectl set-hostname hadoop01


重启所有节点：

[root@localhost ~]# reboot
Connection closing...Socket close.
Connection closed by foreign host.
Disconnected from remote host(Hadoop01-1) at 12:38:08.
Type `help' to learn how to use Xshell prompt.
[C:\~]$


重启后检查所有节点的hostname：

[root@hadoop01 ~]# hostname
hadoop01


到这里我们所有节点的hostname都配置完成。

此步骤中所有操作都使用“发送键输入到所有回话功能”进行配置:

关闭防火墙服务、禁止防火墙开机自启：

[root@hadoop01 ~]# systemctl stop firewalld
[root@hadoop01 ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.


关闭SELinux

vi /etc/selinux/config
SELINUX=enforcing
SELINUX=disable


[root@hadoop01 ~]# vi /etc/selinux/config


将 SELINUX=enforcing 改为 SELINUX=disabled


配置hosts文件：

[root@hadoop01 ~]# vi /etc/hosts


添加如下内容：
192.168.10.101 hadoop01
192.168.10.102 hadoop02
192.168.10.103 hadoop03
192.168.10.104 hadoop04
192.168.10.105 hadoop05
192.168.10.106 hadoop06
192.168.10.107 hadoop07
192.168.10.108 hadoop08
192.168.10.109 hadoop09
192.168.10.110 hadoop10


测试节点之间的通信：

这里只演示一个节点，这一步要保证所有节点之间的通信都是可以的。

[hadoop@hadoop01 /]$ ping hadoop02 -c 4
PING hadoop02 (192.168.10.102) 56(84) bytes of data.
64 bytes from hadoop02 (192.168.10.102): icmp_seq=1 ttl=64 time=0.433 ms
64 bytes from hadoop02 (192.168.10.102): icmp_seq=2 ttl=64 time=0.331 ms
64 bytes from hadoop02 (192.168.10.102): icmp_seq=3 ttl=64 time=0.298 ms
64 bytes from hadoop02 (192.168.10.102): icmp_seq=4 ttl=64 time=0.327 ms
--- hadoop02 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 0.298/0.347/0.433/0.052 ms


到这里，我们集群的网络配置就完成了。