CDH6离线安装教程

之前用的是cdh5.12，由于测评公司说版本比较低，有很多漏洞，需要升级，索性直接就升到cdh6算了。

CentOS7下完全离线安装CDH6集群

说明：本文内容所有操作都是在root用户下进行的。

文件下载

首先一些安装CDH6集群的必须文件要先在外网环境先下载好。

Cloudera Manager 6.0.1

CM6 RPM：https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/RPMS/x86_64/
需要下载该链接下的所有RPM文件，由于jdk1.8我在环境准备部分已经手动安装了，所以可以不用下载RPMS/x86_64/目录下的jdk包oracle-j2sdk1.8-1.8.0+update141-1.x86_64.rpm，但是其他4个rpm包一定要下载，保存到cloudera-repos目录下。

ASC文件：https://archive.cloudera.com/cm6/6.0.1/allkeys.asc
同时还需要下载一个asc文件，同样保存到cloudera-repos目录下：

/upload/cloudera-repos/
├── allkeys.asc
├── cloudera-manager-agent-6.0.1-610811.el7.x86_64.rpm
├── cloudera-manager-daemons-6.0.1-610811.el7.x86_64.rpm
├── cloudera-manager-server-6.0.1-610811.el7.x86_64.rpm
└── cloudera-manager-server-db-2-6.0.1-610811.el7.x86_64.rpm
0 directories, 4 files

MySQL JDBC驱动

要求使用5.1.26以上版本的jdbc驱动，可点击这里直接下载mysql-connector-java-5.1.47.tar.gz

CDH 6.0.1

CDH6 Parcels：https://archive.cloudera.com/cdh6/6.0.1/parcels/
需要下载CDH-6.0.1-1.cdh6.0.1.p0.590678-el7.parcel和manifest.json这两个文件

配置Cloudera Manager yum库

注意：不要尝试使用FTP搭建CM的YUM库！

首先安装httpd和createrepo：
yum -y install httpd createrepo
启动httpd服务并设置开机自启动：
systemctl start httpd
systemctl enable httpd
然后进入到前面准备好的存放Cloudera Manager RPM包的目录cloudera-repos下：
cd /upload/cloudera-repos/
生成RPM元数据：
createrepo .

[root@cdh601 cloudera-repos]# createrepo .
Spawning worker 0 with 2 pkgs
Spawning worker 1 with 2 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete

然后将cloudera-repos目录移动到httpd的html目录下：
mv cloudera-repos /var/www/html/
确保可以通过浏览器查看到这些RPM包：

接着在Cloudera Manager Server主机上创建cm6的repo文件（要把哪个节点作为Cloudera Manager Server节点，就在这个节点上创建repo文件）：
cd /etc/yum.repos.d
vim cloudera-manager.repo
添加如下内容：

[cloudera-manager]
name=Cloudera Manager 6.0.1
baseurl=http://cdh601/cloudera-repos/
gpgcheck=0
enabled=1

保存，退出,然后执行yum clean all && yum makecache命令：

安装Cloudera Manager Server

这一步只需要在CM Server节点上操作。
执行下面的命令：
yum install cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server
将会需要很多依赖包，所以说还是有必要搭一个局域网内yum源的：

配置本地Parcel存储库

Cloudera Manager Server安装完成后，进入到本地Parcel存储库目录：
cd /opt/cloudera/parcel-repo
将第一部分下载的CDH Parcel文件（CDH-6.0.1-1.cdh6.0.1.p0.590678-el7.parcel和manifest.json）上传至该目录下，然后执行命令生成sha文件：
sha1sum CDH-6.0.1-1.cdh6.0.1.p0.590678-el7.parcel | awk '{ print $1 }' > CDH-6.0.1-1.cdh6.0.1.p0.590678-el7.parcel.sha
然后执行下面的命令修改文件所有者：
chown -R cloudera-scm:cloudera-scm /opt/cloudera/parcel-repo/*
最终/opt/cloudera/parcel-repo目录内容如下：

安装数据库

MySQL的安装在环境准备部分中已经有说明，这里就跳过MySQL安装了。

数据库配置

CDH官方给的有一份推荐的MySQL的配置内容：

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
transaction-isolation = READ-COMMITTED
# Disabling symbolic-links is recommended to prevent assorted security risks;
# to do so, uncomment this line:
symbolic-links = 0
key_buffer_size = 32M
max_allowed_packet = 32M
thread_stack = 256K
thread_cache_size = 64
query_cache_limit = 8M
query_cache_size = 64M
query_cache_type = 1
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=1
binlog_format = mixed
read_buffer_size = 2M
read_rnd_buffer_size = 16M
sort_buffer_size = 8M
join_buffer_size = 8M
# InnoDB settings
innodb_file_per_table = 1
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 64M
innodb_buffer_pool_size = 4G
innodb_thread_concurrency = 8
innodb_flush_method = O_DIRECT
innodb_log_file_size = 512M
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
sql_mode=STRICT_ALL_TABLES

配置mysql jdbc驱动

从前面下载好的mysql-connector-java-5.1.47.tar.gz包中解压出mysql-connector-java-5.1.47-bin.jar文件，将mysql-connector-java-5.1.47-bin.jar文件上传至CM Server节点上的/usr/share/java/目录下并重命名为mysql-connector-java.jar（如果/usr/share/java/目录不存在，需要手动创建）：
tar zxvf mysql-connector-java-5.1.47.tar.gz
mkdir -p /usr/share/java/
cp mysql-connector-java-5.1.47-bin.jar /usr/share/java/mysql-connector-java.jar

创建CDH所需要的数据库

根据所需要安装的服务参照下表创建对应的数据库以及数据库用户，数据库必须使用utf8编码，创建数据库时要记录好用户名及对应密码：

服务名	数据库名	用户名
Cloudera Manager Server	scm	scm
Activity Monitor	amon	amon
Reports Manager	rman	rman
Hue	hue	hue
Hive Metastore Server	metastore	hive
Sentry Server	sentry	sentry
Cloudera Navigator Audit Server	nav	nav
Cloudera Navigator Metadata Server	navms	navms
Oozie	oozie	oozie

我这里就先创建4个数据库及对应用户：

mysql> CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
Query OK, 1 row affected (0.11 sec)
mysql> CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
Query OK, 1 row affected (0.00 sec)
mysql> CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
Query OK, 1 row affected (0.00 sec)
mysql> CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
Query OK, 1 row affected (0.00 sec)
mysql> GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY 'scm';
Query OK, 0 rows affected, 1 warning (0.16 sec)
mysql> GRANT ALL ON amon.* TO 'amon'@'%' IDENTIFIED BY 'amon';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY 'rman';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> GRANT ALL ON metastore.* TO 'hive'@'%' IDENTIFIED BY 'hive';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

查看授权是否正确：

mysql> SHOW GRANTS FOR 'scm'@'%';
+----------------------------------------------+
| Grants for scm@% |
+----------------------------------------------+
| GRANT USAGE ON *.* TO 'scm'@'%' |
| GRANT ALL PRIVILEGES ON `scm`.* TO 'scm'@'%' |
+----------------------------------------------+
2 rows in set (0.00 sec)
mysql> SHOW GRANTS FOR 'amon'@'%';
+------------------------------------------------+
| Grants for amon@% |
+------------------------------------------------+
| GRANT USAGE ON *.* TO 'amon'@'%' |
| GRANT ALL PRIVILEGES ON `amon`.* TO 'amon'@'%' |
+------------------------------------------------+
2 rows in set (0.00 sec)
mysql> SHOW GRANTS FOR 'rman'@'%';
+------------------------------------------------+
| Grants for rman@% |
+------------------------------------------------+
| GRANT USAGE ON *.* TO 'rman'@'%' |
| GRANT ALL PRIVILEGES ON `rman`.* TO 'rman'@'%' |
+------------------------------------------------+
2 rows in set (0.00 sec)
mysql> SHOW GRANTS FOR 'hive'@'%';
+----------------------------------------------------------+
| Grants for metastore@% |
+----------------------------------------------------------+
| GRANT USAGE ON *.* TO 'hive'@'%' |
| GRANT ALL PRIVILEGES ON `metastore`.* TO 'hive'@'%' |
+----------------------------------------------------------+
2 rows in set (0.00 sec)

设置Cloudera Manager 数据库

Cloudera Manager Server包含一个配置数据库的脚本。

mysql数据库与CM Server是同一台主机
执行命令：/opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm
mysql数据库与CM Server不在同一台主机上
执行命令：/opt/cloudera/cm/schema/scm_prepare_database.sh mysql -h <mysql-host-ip> --scm-host <cm-server-ip> scm scm

安装CDH节点

启动Cloudera Manager Server服务

systemctl start cloudera-scm-server
然后等待Cloudera Manager Server启动，可能需要稍等一会儿，可以通过命令tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log去监控服务启动状态。

当看到INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.日志打印出来后，说明服务启动成功，可以通过浏览器访问Cloudera Manager WEB界面了。

访问Cloudera Manager WEB界面

打开浏览器，访问地址：http://<server_host>:7180，默认账号和密码都为admin：

下面就是按步骤往下进行了