Evan Conkle

About Evan Conkle

Evan is a Senior Enterprise Application Developer in the computer gaming industry. From application scaling to Hadoop, he masters complex data problems. He is also the founder of HadoopLogic.com.

Install Cloudera Manager 3.7.5 Free Edition

I recently installed Cloudera Manager Free Edition on my test cluster. I ran into a few problems during install so hopefully this will help you with your troubles.Cloudera Manager Free Edition will build and configure your single or multi-node CDH cluster and help you manage future changes to it. This software is free to use for up to 50 nodes with no term limit.

Cloudera Documentation (PDF):

https://ccp.cloudera.com/download/attachments/18779712/scm-3.7.5-free-installation-guide.pdf?version=2&modificationDate=1334944267000

To download and run the Cloudera Manager installer:
1. Download cloudera-manager-installer.bin from the Cloudera Downloads page

wget http://archive.cloudera.com/cloudera-manager/installer/latest/cloudera-manager-installer.bin

2. After downloading cloudera-manager-installer.bin, change it to have executable permission.

$ chmod u+x cloudera-manager-installer.bin

3. Run cloudera-manager-installer.bin.

$ sudo ./cloudera-manager-installer.bin

4. Read the Cloudera Manager Readme and then click Next.
5. Read the Cloudera Manager License and then click Next. Click Yes to confirm you accept the license.
6. Read the Oracle Binary Code License Agreement and then click Next. Click Yes to confirm you accept the Oracle Binary Code License Agreement.

The Cloudera Manager installer begins installing the Oracle JDK (if necessary), CDH3, and Cloudera Manager repo files and then installs the packages. The installer also installs the embedded PostgreSQL database and the Cloudera Manager Server.

Note

If an error message “Failed to start server” appears while running cloudera-managerinstaller.bin, exit the installation program. If the Cloudera Manager

Server log file

/var/log/cloudera-scm-server/cloudera-scm-server.log contains the
following message, then it's likely you have SELinux enabled:
Caused by: java.lang.ClassNotFoundException:
com.mysql.jdbc.Driver
        at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native
Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
...

You can permanently disable SELinux by setting the following property in the
/etc/selinux/config file on the Cloudera Manager Server host:

SELINUX=disabled

After editing the /etc/selinux/config file, reboot your system.

7. Click Close.

8. Click Finish to quit the installer program.

Note

If the installation is interrupted for some reason, you may need to clean up before you can re-run it. See Uninstalling Cloudera Manager Free Edition.

Step 2: Start the Cloudera Manager Admin Console

The Cloudera Manager Admin console enables you to use Cloudera Manager to configure, manage, and monitor Hadoop on your cluster. In this release, the Cloudera Manager Admin console supports the following browsers:
• Internet Explorer 8 and 9
• Google Chrome
• Safari 5Automated Installation of CDH by Cloudera Manager
• Firefox 3.6 and later

To start the Cloudera Manager Admin console:
1. In a web browser, type the following URL: http(s)://serverhost:port

where:
“serverhost” is the fully-qualified domain name or IP address of the host machine where the Cloudera Manager Server is installed.

“port” is the port configured for the Cloudera Manager Server. The default port is 7180.

For example, if you are on the host where the Cloudera Manager Server is installed, enter the following URL: http://localhost:7180/

If you are on another host, use a URL such as the following:

http://myhost.example.com:7180/

The login screen for Cloudera Manager appears.

2. Log into Cloudera Manager. The default credentials are:

Username: admin (you can add other admin user accounts and remove the default admin account later using Cloudera Manager after you run the wizard in the next section)

Password: admin (you can change the default password later)

Note
You must have “127.0.0.1 localhost” in your /etc/hosts file

Test port 7180 by:

telnet localhost 7180

Reference: Install Cloudera Manager 3.7.5 Free Edition CentOS 6.2 from our JCG partner Evan Conkle at the Evan Conkle’s blog blog.

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