cent os 6.5+ambari+HDP集群安装
1. 搭建一个测试集群,集群有4台机器,配置集群中每一台机器的/etc/hosts文件:
[root@nn .ssh]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 172.28.3.40 nn nn.hadoop.plat 172.28.3.41 dn1 dn0.hadoop.plat 172.28.3.42 dn2 dn1.hadoop.plat 172.28.3.43 dn3 dn2.hadoop.plat
2. 配置namenode到datanode ssh免密码登陆:
在nn上执行,ssh-keygen –t rsa
cd ~/.ssh
cat id_rsa.put >> authorized_keys
对集群中每一台data node执行: ssh-copy-id root@dn1 ssh-copy-id root@dn2 ssh-copy-id root@dn13
这样就可以保证,nn节点可以免密码登陆到dn1, dn2, dn3
[root@nn .ssh]# ifconfig eth0 Link encap:Ethernet HWaddr 00:1A:4A:C6:6B:A0 inet addr:172.28.3.40 Bcast:172.28.7.255 Mask:255.255.248.0 inet6 addr: fe80::21a:4aff:fec6:6ba0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1064845 errors:0 dropped:0 overruns:0 frame:0 TX packets:557212 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1578655986 (1.4 GiB) TX bytes:647178854 (617.1 MiB) 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:103276 errors:0 dropped:0 overruns:0 frame:0 TX packets:103276 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:58108687 (55.4 MiB) TX bytes:58108687 (55.4 MiB) [root@nn .ssh]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 172.28.3.40 nn nn.hadoop.plat 172.28.3.41 dn1 dn0.hadoop.plat 172.28.3.42 dn2 dn1.hadoop.plat 172.28.3.43 dn3 dn2.hadoop.plat [root@nn .ssh]# ssh dn1 SIOCADDRT: File exists
3. 关闭iptables
chkconfig iptables off
/etc/init.d/iptables stop
4. 关闭seLinux
查看selinux状态:
[root@localhost ~]# /usr/sbin/sestatus –v
/usr/sbin/setenforce 0 #使SELinux工作模式变成permissive模式
/usr/sbin/setenforce 1 #使SELinux工作模式变成enforcing模式
这样就可以实时控制SELinux的启用和不启用了。
三个参数介绍介绍
-
enforcing — The SELinux security policy is enforced.
-
permissive — The SELinux system prints warnings but does not enforce policy.
-
disabled — SELinux is fully disabled. SELinux hooks are disengaged from the kernel and the pseudo-file system is unregistered.
永久关闭SELinux
编辑/etc/selinux/config,找到SELINUX 行修改成为:SELINUX=disabled:
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Only targeted network daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted
如果重启系统,就会发现SELinux的状态变成disabled
5. 关闭linux内核huge_page:
Add the following lines in /etc/rc.local and reboot the server: echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag
6. 安装java,配置JAVA_HOME
mkdir /usr/java cd /usr/java rz -be /usr/java/jdk1.7.0_75 ln -s /usr/java/jdk1.7.0_75 /usr/java/default vim /etc/profile route add default gw 172.28.0.1 export JAVA_HOME=/usr/java/default export PATH=$JAVA_HOME/bin:$PATH
编辑好/etc/profile,执行source /etc/profile使配置生效,保证每一台机器上的java版本都是一致的,并且JAVA_HOME环境变量是有效的:
7. 每台机器上安装ntpd
rpm -aq | grep ntpd yum install ntpd chkconfig ntpd on service ntpd start
确保每台机器的ntpd服务都处于运行状态:
8. 确保机器上安装了openssh-server,并且升级openssl到最新:
rpm -qa | grep ssh yum install openssh-server service sshd restart chkconfig sshd on
确保openssl最新:
yum install openssl-devel-1.0.1e-42.el6.x86_64
9. yum源确保可以用,本次安装采用了163的yum源,先将/etc/yum.repos.d/中,所有的文件都删掉,然后新建文件CentOS6-Base-163.repo,填入如下内容:
# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # # [base] name=CentOS-$releasever - Base - 163.com baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-$releasever - Updates - 163.com baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras - 163.com baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras gpgcheck=1 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus - 163.com baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus gpgcheck=1 enabled=0 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 #contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib - 163.com baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib gpgcheck=1 enabled=0 gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
配置ambari的yum源,本配置源是部署在本地局域网中的一台apache服务器上的:
[root@hdp159 yum.repos.d]# cat ambari.repo [Updates-ambari-2.0.1] name=ambari-2.0.1 - Updates baseurl=http://172.28.4.159/ambari-test/centos6 gpgcheck=1 gpgkey=http://172.28.4.159/ambari-test/centos6/RPM-GPG-KEY/RPM-GPG-KEY-Jenkins enabled=1 priority=1 [root@hdp159 yum.repos.d]#
将yum源配置好好了后,执行如下命令:
yum clean all yum repolist
10. 在nn机器上,安装ambari-servier,执行如下命令,之所以加—nogpgcheck参数,是因为此处安装的是公司修改后的ambari,如果是安装原生的ambari,不用加该选项:
yum install --nogpgcheck ambari-server
11.配置和启动ambari-server, setup –j 配置ambari-server要使用的java环境:
ambari-server setup -j /usr/java/default
ambari-server start
12. 在浏览器中,输入nn:8080进入ambari的登陆页面,用户名和密码都是admin:
13. 配置HDP的redhat6的baseURL,此处使用的是本地局域网中的HDP安装源:
http://172.28.4.159/HDP2.2.6/HDP/centos6/2.x/updates/2.2.6.0/
http://172.28.4.159/HDP2.2.6/HDP-UTILS-1.1.0.20/repos/centos6/
14. 将nn节点下,/root/.ssh/id_rsa文件上传到ambari中,配置好Target Hosts:
15. 发现一个警告消息,在每一台机器上执行如下命令,消除警告:
[root@dn3 yum.repos.d]# python /usr/lib/python2.6/site-packages/ambari_agent/HostCleanup.py --silent --skip=users INFO:HostCleanup: Killing pid's: [''] INFO:HostCleanup:Deleting packages: [''] INFO:HostCleanup: Deleting directories: [''] INFO:HostCleanup:Path doesn't exists: INFO:HostCleanup: Deleting additional directories: [''] INFO:HostCleanup: Deleting repo files: [] INFO:HostCleanup: Erasing alternatives:{'symlink_list': [''], 'target_list': ['']} INFO:HostCleanup:Path doesn't exists: INFO:HostCleanup:Clean-up completed. The output is at /var/lib/ambari-agent/data/hostcleanup.result
16. 分配slaves和clients:
设置好,hive和oozie数据库的用户名和密码:
查看总结信息:
17. 进入安装流程,最后安装成功: