Hadoop生态圈-HDP之Apache Ambari安装

　　　　　　　　　　　　　　Hadoop生态圈-HDP之Apache Ambari安装

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

一.准备环境

1>.内存要求

Ambari主机应具有至少1 GB RAM，500 MB可用空间。（要检查任何主机上的可用内存，请运行：free -m）

如果您计划将Ambari度量服务（AMS）安装到群集中，则应查看在Hortonworks数据平台Apache Ambari操作中使用Ambari度量标准，以获取有关资源要求的指南。通常，您计划运行Ambari Metrics Collector主机的主机应根据群集大小提供以下内存和磁盘空间：

2>.包大小和iNode计数要求

3>.最大打开文件数要求

　　建议的最大打开文件描述符数为10000或更多。要检查为最大打开文件描述符数设置的当前值，请在每个主机上执行以下shell命令：（ulimit -Sn 查看的是软限制,ulimit -Hn 查看的是硬限制），

　　如果输出不大于10000，请运行以下命令将其设置为合适的默认值：ulimit -n 10000，当然你也可以通过修改“ /etc/security/limit.conf”，“/etc/sysctl.conf”这两个配置文件哟！

4>.设置无密码SSH

5>.设置服务用户帐户

https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-installation/content/prepare_the_environment.html

安装MySQL数据库：（关于MySQL的yum源以及rpm安装包我已经下载好了，存放在百度云链接：https://pan.baidu.com/s/1wZS2f-ZiJv0VcpUBZ2hcZQ 密码：yzl7）

一.安装MySQL5.6.3版本的数据库
1>.安装mysql的源
[yinzhengjie@s101 ~]$ sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm 
[sudo] password for yinzhengjie: 
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-release-el7-5    ################################# [100%]
[yinzhengjie@s101 ~]$

2>.本地安装MySQL
[yinzhengjie@s101 ~]$ cd mysql
[yinzhengjie@s101 mysql]$ sudo yum -y localinstall *.rpm

二.启动mysql并将其开机启动
[yinzhengjie@s101 mysql]$ systemctl start mysqld
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to manage system services or units.
Authenticating as: root
Password: 
==== AUTHENTICATION COMPLETE ===
[yinzhengjie@s101 mysql]$ systemctl enable mysqld
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-unit-files ===
Authentication is required to manage system service or unit files.
Authenticating as: root
Password: 
==== AUTHENTICATION COMPLETE ===
==== AUTHENTICATING FOR org.freedesktop.systemd1.reload-daemon ===
Authentication is required to reload the systemd state.
Authenticating as: root
Password: 
==== AUTHENTICATION COMPLETE ===
[yinzhengjie@s101 mysql]$ 
[yinzhengjie@s101 mysql]$ 

三.更新mysql密码并创建数据库（刚开始安装没有密码)
[yinzhengjie@s101 ~]$ mysql -uroot
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.38 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> UPDATE user SET Password=PASSWORD('yinzhengjie') where USER='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4  Changed: 4  Warnings: 0

mysql>  flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> create database hdp;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hdp                |
| mysql              |
| performance_schema |
+--------------------+
4 rows in set (0.00 sec)

mysql> quit
Bye
[yinzhengjie@s101 ~]$

二.实战部署

Hadoop生态圈-HDP之Apache Ambari安装

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