基于Ambari的WebUI实现集群扩容案例

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基于Ambari的WebUI实现集群扩容案例

作者：尹正杰

一.将HDP的服务托管给Ambari服务

1>.点击“Service Auto Start”

2>.进入到"Server Auto Start"的管理界面

3>.勾选需要随着Ambari启动而启动的HDP服务组件

4>.确认保存

二.扩容节点准备环境

1>.配置Ambari服务器与将要扩容的节点免密登录

[root@hdp101.yinzhengjie.org.cn ~]# ssh-copy-id root@hdp104.yinzhengjie.org.cn
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'hdp104.yinzhengjie.org.cn (172.200.1.104)' can't be established.
ECDSA key fingerprint is SHA256:y6iS5ipSyWSGRmgcjivbWhd78pKfrcuQHeBPd5H9/U8.
ECDSA key fingerprint is MD5:da:0f:2a::c0:d4:6e:7e::::f1::a7::.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@hdp104.yinzhengjie.org.cn's password: Number of key(s) added: Now try logging into the machine, with: "ssh 'root@hdp104.yinzhengjie.org.cn'"
and check to make sure that only the key(s) you wanted were added.[root@hdp101.yinzhengjie.org.cn ~]#
[root@hdp101.yinzhengjie.org.cn ~]#
[root@hdp101.yinzhengjie.org.cn ~]# ssh root@hdp104.yinzhengjie.org.cn
Last login: Tue Feb :: from 172.200.0.1
[root@hdp104.yinzhengjie.org.cn ~]#
[root@hdp104.yinzhengjie.org.cn ~]# who
root pts/ -- : (172.200.0.1)
root pts/ -- : (172.200.1.101)
[root@hdp104.yinzhengjie.org.cn ~]#
[root@hdp104.yinzhengjie.org.cn ~]# exit
logout
Connection to hdp104.yinzhengjie.org.cn closed.
[root@hdp101.yinzhengjie.org.cn ~]#
[root@hdp101.yinzhengjie.org.cn ~]# who
root pts/ -- : (172.200.0.1)
[root@hdp101.yinzhengjie.org.cn ~]#
[root@hdp101.yinzhengjie.org.cn ~]#

[root@hdp101.yinzhengjie.org.cn ~]# ssh-copy-id root@hdp104.yinzhengjie.org.cn

2>.扩容节点配置chrony服务指向ambari服务器的时钟服务器

[root@hdp104.yinzhengjie.org.cn ~]# yum -y install chrony
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors.tuna.tsinghua.edu.cn
* extras: mirrors.tuna.tsinghua.edu.cn
* updates: mirrors.tuna.tsinghua.edu.cn
base | 3.6 kB ::
extras | 2.9 kB ::
updates | 2.9 kB ::
(/): extras//x86_64/primary_db | kB ::
(/): updates//x86_64/primary_db | 6.7 MB ::
Resolving Dependencies
--> Running transaction check
---> Package chrony.x86_64 :3.4-.el7 will be installed
--> Processing Dependency: libseccomp.so.()(64bit) for package: chrony-3.4-.el7.x86_64
--> Running transaction check
---> Package libseccomp.x86_64 :2.3.-.el7 will be installed
--> Finished Dependency ResolutionDependencies Resolved===============================================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================================
Installing:
chrony x86_64 3.4-.el7 base k
Installing for dependencies:
libseccomp x86_64 2.3.-.el7 base kTransaction Summary
===============================================================================================================================================================================
Install Package (+ Dependent package)Total download size: k
Installed size: k
Downloading packages:
(/): libseccomp-2.3.-.el7.x86_64.rpm | kB ::
(/): chrony-3.4-.el7.x86_64.rpm | kB ::
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 1.8 MB/s | kB ::
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : libseccomp-2.3.-.el7.x86_64 /
Installing : chrony-3.4-.el7.x86_64 /
Verifying : libseccomp-2.3.-.el7.x86_64 /
Verifying : chrony-3.4-.el7.x86_64 / Installed:
chrony.x86_64 :3.4-.el7 Dependency Installed:
libseccomp.x86_64 :2.3.-.el7 Complete!
[root@hdp104.yinzhengjie.org.cn ~]#

[root@hdp104.yinzhengjie.org.cn ~]# yum -y install chrony

[root@hdp104.yinzhengjie.org.cn ~]# egrep -v "^#|^$" /etc/chrony.conf
server hdp101.yinzhengjie.org.cn iburst
driftfile /var/lib/chrony/drift
makestep 1.0
rtcsync
logdir /var/log/chrony
[root@hdp104.yinzhengjie.org.cn ~]#
[root@hdp104.yinzhengjie.org.cn ~]# systemctl restart chronyd
[root@hdp104.yinzhengjie.org.cn ~]#

3>.将扩容节点的chrony服务设置为开机自启动

[root@hdp104.yinzhengjie.org.cn ~]# systemctl enable chronyd
[root@hdp104.yinzhengjie.org.cn ~]#
[root@hdp104.yinzhengjie.org.cn ~]# systemctl list-unit-files | grep chronyd
chronyd.service enabled
[root@hdp104.yinzhengjie.org.cn ~]#