Hadoop2.6集群环境搭建(HDFS HA+YARN)

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Hadoop2.6集群环境搭建(HDFS HA+YARN)原来4G内存也能任性一次。

准备工作:

1、笔记本4G内存 ,操作系统WIN7 (屌丝的配置)

2、工具VMware Workstation

3、虚拟机:CentOS6.4共四台

虚拟机设置:

每台机器:内存512M,硬盘40G,网络适配器:NAT模式

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选择高级,新生成虚机Mac地址(克隆虚拟机,Mac地址不会改变,每次最后手动重新生成)

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编辑虚拟机网络:

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点击NAT设置,查看虚机网关IP,并记住它,该IP在虚机的网络设置中非常重要。

NAT设置默认IP会自动生成,但是我们的集群中IP需要手动设置。

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本机Win7 :VMnet8 网络设置

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实验环境:

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Ip

hostname

role

192.168.249.130

SY-0130

ActiveNameNode

192.168.249.131

SY-0131

StandByNameNode

192.168.249.132

SY-0132

DataNode1

192.168.249.133

SY-0133

DataNode2

Linux网络设置:

1、新建用户如:hadoop。不建议使用root用户搭建集群(root权限过大)

2、使得hadoop用户获得sudo权限。

[root@SY-0130 ~]# vi /etc/sudoers## Allow root to run any commands anywhereroot    ALL=(ALL)       ALLhadoop  ALL=(ALL)       ALL

3、查看当前虚机当前网络使用网卡设备

[root@SY-0130 hadoop]# ifconfigeth2      Link encap:Ethernet  HWaddr 00:50:56:35:8E:E8    inet addr:192.168.249.130  Bcast:192.168.249.255  Mask:255.255.255.0  inet6 addr: fe80::250:56ff:fe35:8ee8/64 Scope:Link  UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1  RX packets:877059 errors:0 dropped:0 overruns:0 frame:0  TX packets:597769 errors:0 dropped:0 overruns:0 carrier:0  collisions:0 txqueuelen:1000   RX bytes:865720294 (825.6 MiB)  TX bytes:324530557 (309.4 MiB)  Interrupt:19 Base address:0x2024 lo        Link encap:Local Loopback    inet addr:127.0.0.1  Mask:255.0.0.0  inet6 addr: ::1/128 Scope:Host  UP LOOPBACK RUNNING  MTU:16436  Metric:1  RX packets:1354 errors:0 dropped:0 overruns:0 frame:0  TX packets:1354 errors:0 dropped:0 overruns:0 carrier:0  collisions:0 txqueuelen:0   RX bytes:196675 (192.0 KiB)  TX bytes:196675 (192.0 KiB)

[root@SY-0130 ~]# cat /proc/net/dev,当前网卡,我的为eth2

[root@SY-0130 ~]# cat /proc/net/devInter-|   Receive                                                |  Transmit face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed    lo:  196675    1354    0    0    0     0          0         0   196675    1354    0    0    0     0       0          0  eth2:865576893  875205    0    0    0     0          0         0 324425517  596433    0    0    0     0       0          0

4、查看当前网卡对应的Mac地址

[root@SY-0130 ~]# cat /etc/udev/rules.d/70-persistent-net.rules # This file was automatically generated by the /lib/udev/write_net_rules# program, run by the persistent-net-generator.rules rules file.## You can modify it, as long as you keep each rule on a single# line, and change only the value of the NAME= key.# PCI device 0x1022:0x2000 (vmxnet)SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:b5:fd:bb", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"# PCI device 0x1022:0x2000 (vmxnet)SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:35:8e:e8", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"

5、Network Configuration

[root@SY-0130 ~]# setup

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选择eth2,进行设置,更改为当前网卡设备eth2,并且进行IP、网管、DNS设置。

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DNS Server 与Win7的网络中的DNS Server一致,这样虚拟机也可以连接Internet网了,方便下载安装软件。

另外还有将防火墙关闭。

6、修改hostname

[root@SY-0130 ~]# vi /etc/sysconfig/networkNETWORKING=yesHOSTNAME=SY-0130

7、修改hosts

[hadoop@SY-0130 ~]$ sudo vi /etc/hosts

#添加如下内容

192.168.249.130 SY-0130192.168.249.131 SY-0131192.168.249.132 SY-0132192.168.249.133 SY-0133
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