Cloudera Manager 6.0.1 安装注意事项及细节
此篇基本与官方文档一致，细节不一样的地方会标注
我的环境：
server1 192.168.1.201 4核 8G 120G（固态）
server2 192.168.1.202 4核 8G 120G+500G（固态）
server3 192.168.1.203 4核 8G 120G+500G（固态）
server4 192.168.1.204 4核 8G 120G+500G（固态）
以上机型用cobbler 批量安装centos7.5 minimal.
修改hosts 文件，关闭防火墙（批量默认关闭），关闭selinux (批量默认关闭)
4台主机互相设置免密登陆
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4::1 localhost localhost.localdomain localhost6 localhost6.localdomain192.168.1.201 server1192.168.1.202 server2192.168.1.203 server3192.168.1.204 server4
批量操作可以使用ansible
0，所有节点操作，替换阿里源，epel
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
#yum clean all
#yum makecache fast
1，所有节点操作，添加Cloudera 源和keys
# wget https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/cloudera-manager.repo -P /etc/yum.repos.d/
# rpm --import https://archive.cloudera.com/cm6/6.0.0/redhat7/yum/RPM-GPG-KEY-cloudera
2，server1，配置jdk环境 （此处建议遵循官方文档yum安装，不建议手动安装，后面的Auto-TLS 会有问题）
# yum install oracle-j2sdk1.8
3，server1，安装Clouder Manager Server (此处建议只安装cloudera-manager-server)
# yum install cloudera-manager-server
4，server1，Enable Auto_Tls (开启https 的支持，此为可选操作，我在后面遇到了问题，为了排除问题，所以这一步没有做)
5，server1，安装数据库 (Mariadb,Mysql 都可以的，根据个人喜好，此处Mysql 为例)
# wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
# rpm -ivh mysql-community-release-el7-5.noarch.rpm
# yum update
# yum install mysql-server
修改数据库的配置文件# vim /etc/my.cnf[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.socktransaction-isolation = READ-COMMITTED# Disabling symbolic-links is recommended to prevent assorted security risks;# to do so, uncomment this line:symbolic-links = 0key_buffer_size = 32Mmax_allowed_packet = 32Mthread_stack = 256Kthread_cache_size = 64query_cache_limit = 8Mquery_cache_size = 64Mquery_cache_type = 1#最大连接数按照内存大小设置，8G为 600左右max_connections = 550#expire_logs_days = 10#max_binlog_size = 100M#log_bin should be on a disk with enough free space.#Replace '/var/lib/mysql/mysql_binary_log' with an appropriate path for your#system and chown the specified folder to the mysql user.log_bin=/var/lib/mysql/mysql_binary_log#In later versions of MySQL, if you enable the binary log and do not set#a server_id, MySQL will not start. The server_id must be unique within#the replicating group.server_id=1binlog_format = mixedread_buffer_size = 2Mread_rnd_buffer_size = 16Msort_buffer_size = 8Mjoin_buffer_size = 8M# InnoDB settingsinnodb_file_per_table = 1innodb_flush_log_at_trx_commit = 2innodb_log_buffer_size = 64Minnodb_buffer_pool_size = 4Ginnodb_thread_concurrency = 8innodb_flush_method = O_DIRECTinnodb_log_file_size = 512M[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pidsql_mode=STRICT_ALL_TABLES
# systemctl enable mysqld
# systemctl start mysqld
数据库设置自启，开启数据库以后，初始化一下，按照提示操作
# /usr/bin/mysql_secure_installation
6，server1，按照JDBC 驱动 （参照官网）
wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.46.tar.gz
tar zxvf mysql-connector-java-5.1.46.tar.gz
mkdir -p /usr/share/java/
cd mysql-connector-java-5.1.46
cp mysql-connector-java-5.1.46-bin.jar /usr/share/java/mysql-connector-java.jar
7，server1，创建数据库 （参照官网，前期我观察只有scm 一个有用，但是为了后续操作，我全部建立了。）
mysql > CREATE DATABASEDEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
mysql > GRANT ALL ON.* TO ' '@'%' IDENTIFIED BY ' ';
8，server1，验证数据库链接
# /opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm (mysql为数据库类型，scm数据库名，scm用户名，然后输入密码，成功会有如下提示)
9，所有节点，关键的一步 (重命名此文件)
# mv /usr/bin/host /usr/bin/host.bk
10，server1，开启clouder-scm-server 服务 （时间可能会长一些，数据库里面要写入东西）
# systemctl start cloudera-scm-server
查看日志：
# tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log
最好一行出先这个，表示启动正常
INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.
浏览器登陆（根据浏览器语言自动选择中英文）
http://192.168.1.201:7180
用户名：admin
密码：admin
cm6.0.1 的 rpm 包下载地址，如需手动安装，可下载
https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/RPMS/x86_64/
4个节点之间的时间同步我用的是chrony，大家可以参考
写的不好，有问题欢迎指正
VX:85862870
