CentOS7.2卸载完CDH5.12后重装CDH
1因为是重装很多环境ok
A mysql环境ok
B 防火墙ok
C hostname绑定也没有问题
D jdk也是ok
E root用户,所以不涉及权限,如果不是请设置sudo权限用户
F ntp服务正常
G httpd服务正常
H 本地yum源配置正常
I mysql连接驱动之前也有没有删除,正常 cd /usr/share/java/ 3台机器都有
2 检查自己的软件包ok,之前设置过
下面是外网访问截图,上面ip内网,也可以curl一下,在各个机器上
3 重置MySQL初始化数据
drop database cmf; drop user cmf@'%'; drop user amon@'%'; cm-server: create database cmf DEFAULT CHARACTER SET utf8; grant all on cmf.* TO 'cmf'@'%' IDENTIFIED BY 'Zj314XXX!'; flush privileges; amon: create database amon DEFAULT CHARACTER SET utf8; grant all on amon.* TO 'amon'@'%' IDENTIFIED BY 'Zj314XXX!'; flush privileges;
4 在hadoop001节点上,安装rpm包
cd /var/www/html/cm/5/RPMS/x86_64
yum install -y ./cloudera-manager-daemons-5.12.0-1.cm5120.p0.120.el7.x86_64.rpm
yum install -y cloudera-manager-server-5.12.0-1.cm5120.p0.120.el7.x86_64.rpm
5 配置数据库
vim /etc/cloudera-scm-server/db.properties
# Copyright (c) 2012 Cloudera, Inc. All rights reserved. # # This file describes the database connection. # # The database type # Currently 'mysql', 'postgresql' and 'oracle' are valid databases. com.cloudera.cmf.db.type=mysql # The database host # If a non standard port is needed, use 'hostname:port' com.cloudera.cmf.db.host=172.24.8.138 # The database name com.cloudera.cmf.db.name=cmf # The database user com.cloudera.cmf.db.user=cmf # The database user's password com.cloudera.cmf.db.password=Zj314XXX! # The db setup type # By default, it is set to INIT # If scm-server uses Embedded DB then it is set to EMBEDDED # If scm-server uses External DB then it is set to EXTERNAL com.cloudera.cmf.db.setupType=EXTERNAL ~
6 启动服务并开放7180端口外网访问
service cloudera-scm-server start
http://39.104.15.60:7180/cmf/login
7 用户名/密码 admin/admin 开始配置 关键步骤截图
遇到问题 Search hosts过不去
原因,是自己阿里云的公网ip之前缓存了, known_hosts文件重新生成一个空白文件,然后同步到其他机器
之后ok,还有启动脚本的JAVA_HOME问题,之前的博客有提到过
之前准备好的连接填写进去
解决JAVA_HOME问题,详见之前博客的几种情况
执行提示的脚本命令
echo never > /sys/kernel/mm/transparent_hugepage/defrag echo never > /sys/kernel/mm/transparent_hugepage/enabled
注意hdfs的datanode目录要挂载到大硬盘上面,其他默认
JAVA_HOME是最大的坑,最后发现jdk必须安装在/usr/java 目录下