Installation Path C - Manual Installation Using Cloudera Manager Tarballs

Before proceeding with this path for a new installation, review Cloudera Manager Deployment. If you are upgrading an existing Cloudera Manager installation, see Cloudera Upgrade Overview.

In this procedure, you install the Oracle JDK, Cloudera Manager Server, and Cloudera Manager Agent software as tarballs and use Cloudera Manager to automate installation of CDH and managed service software as parcels. For a full discussion of deployment options, see Installing Cloudera Manager and CDH.

To avoid using system packages, and to use tarballs and parcels instead, follow the instructions in this section.

Before You Begin
Install the Cloudera Manager Server and Agents
Create Parcel Directories
Start the Cloudera Manager Server
Start the Cloudera Manager Agents
Install Package Dependencies
Start and Log into the Cloudera Manager Admin Console
Choose Cloudera Manager Edition
Choose Cloudera Manager Hosts
Install CDH and Managed Service Software
Add Services
Configure Database Settings
Review Configuration Changes and Start Services
(Optional) Change the Cloudera Manager User
Change the Default Administrator Password
Configure Oozie Data Purge Settings
Test the Installation

Before You Begin

Install the Oracle JDK

See Java Development Kit Installation.

Install and Configure External Databases

Read Cloudera Manager and Managed Service Datastores. Install and configure an external database for services or Cloudera Management Service roles using the instructions in External Databases for Oozie Server, Sqoop Server, Activity Monitor, Reports Manager, Hive Metastore Server, Hue Server, Sentry Server, Cloudera Navigator Audit Server, and Cloudera Navigator Metadata Server.

Cloudera Manager also requires a database. Prepare the Cloudera Manager Server database as described in Preparing a Cloudera Manager Server External Database.

On CentOS 5 and RHEL 5, Install Python 2.6/2.7 and psycopg2 for Hue

Hue in CDH 5 only works with the operating system's native version of Python when that version is 2.6 and higher.

CentOS/RHEL 5 ships with Python 2.4 so you must install Python 2.6 (or Python 2.7) and the Python-PostgreSQL Database Adapter, psycopg2 (not psycopg).

If the Hue server is already installed, you must import the psycopg2 connector into Hue's environment or create a symbolic link.

## Navigate to Hue within your specific CDH parcel version
cd /opt/cloudera/parcels/`ls -l /opt/cloudera/parcels | grep CDH | tail -1 | awk '{print $9}'`/lib/hue/build/env/bin
./python2.6
>>>> import psycopg2

or …

cd /opt/cloudera/parcels/`ls -l /opt/cloudera/parcels | grep CDH | tail -1 | awk '{print $9}'`/lib/hue/build/env/lib/python2.6/site-packages/
ln -s /usr/lib64/python2.6/site-packages/psycopg2 psycopg2

Install the Cloudera Manager Server and Agents

To install the Cloudera Manager Server and Agents, you download and extract tarballs, create users, and configure the server and agents.

Download and Extract Tarballs

Tarballs contain the Cloudera Manager Server and Cloudera Manager Agent in a single file.

Download tarballs from the locations listed in Cloudera Manager Version and Download Information.
Copy the tarballs and unpack them on all hosts on which you intend to install Cloudera Manager Server and Cloudera Manager Agents, in a directory you choose. You can create a new directory to accommodate the files you extract from the tarball. For example, if /opt/cloudera-manager does not exist, create it using a command similar to:
```
$ sudo mkdir /opt/cloudera-manager
```
Extract the contents of the tarball to the selected directory. For example, to copy a tar file to your home directory and extract the contents of all tar files to the /opt/ directory, use a command similar to the following:
```
$ sudo tar xzf cloudera-manager*.tar.gz -C /opt/cloudera-manager
```

The files are extracted to a subdirectory named according to the Cloudera Manager version being extracted. For example, files could be extracted to /opt/cloudera-manager/cm-5.0/. This full path is required later and is referred to as $CMF_DEFAULTS directory.

Perform Configuration Required by Single User Mode

If you are creating a Cloudera Manager deployment that employs single user mode, perform the configuration steps described in Configuring Single User Mode.

Create Users

The Cloudera Manager Server and managed services require a user account. When installing Cloudera Manager from tarballs, you must create this user account on all hosts manually. Because Cloudera Manager Server and managed services are configured to use tcloudera-scm by default, creating a user with this name is the simplest approach. This created user is used automatically after installation is complete.

To create user cloudera-scm, use a command such as the following:

$ sudo useradd --system --home=/opt/cloudera-manager/cm-5.6.0/run/cloudera-scm-server --no-create-home --shell=/bin/false --comment "Cloudera SCM User" cloudera-scm

Ensure that the --home argument path matches your environment. This argument varies according to where you place the tarball, and the version number varies among releases. For example, the --home location could be /opt/cm-5.6.0/run/cloudera-scm-server.

Create the Cloudera Manager Server Local Data Storage Directory

Create the following directory: /var/lib/cloudera-scm-server.
Change the owner of the directory so that the cloudera-scm user and group have ownership of the directory. For example:
```
$ sudo mkdir /var/lib/cloudera-scm-server
$ sudo chown cloudera-scm:cloudera-scm /var/lib/cloudera-scm-server
```

Configure Cloudera Manager Agents

On every Cloudera Manager Agent host, configure the Cloudera Manager Agent to point to the Cloudera Manager Server. Use the CMF_DEFAULTS environment variable in the environment of the user running Cloudera Manager Server and Agent. In $CMF_DEFAULTS/cloudera-scm-agent/config.ini, set the following environment variables:

Property	Description
`server_host`	Name of the host where Cloudera Manager Server is running.
`server_port`	Port on the host where Cloudera Manager Server is running.

By default, a tarball installation has a var subdirectory where state is stored. In a non-tarball installation, state is stored in /var. Cloudera recommends that you reconfigure the tarball installation to use an external directory as the /var equivalent (/var or any other directory outside the tarball) so that when you upgrade Cloudera Manager, the new tarball installation can access this state. Configure the installation to use an external directory for storing state by editing $CMF_DEFAULTS/etc/default/cloudera-scm-agent and setting the CMF_VAR variable to the location of the /var equivalent. If you do not reuse the state directory between different tarball installations, duplicate Cloudera Manager Agent entries can occur in the Cloudera Manager database.

Configuring for a Custom Cloudera Manager User and Custom Directories

You can change the default username and directories used by Cloudera Manager. If you do not change the default, skip to Cloudera Manager and Managed Service Datastores. By default, Cloudera Manager creates the following directories in /var/log and /var/lib:

/var/log/cloudera-scm-headlamp
/var/log/cloudera-scm-firehose
/var/log/cloudera-scm-alertpublisher
/var/log/cloudera-scm-eventserver
/var/lib/cloudera-scm-headlamp
/var/lib/cloudera-scm-firehose
/var/lib/cloudera-scm-alertpublisher
/var/lib/cloudera-scm-eventserver
/var/lib/cloudera-scm-server

If you are using a custom username and custom directories for Cloudera Manager, you must create these directories on the Cloudera Manager Server host and assign ownership of these directories to the custom username. Cloudera Manager installer makes no changes to any directories that already exist. Cloudera Manager cannot write to any existing directories for which it does not have proper permissions, and if you do not change ownership, Cloudera Management Service roles may not perform as expected. To resolve these issues, do one of the following:

Change ownership of existing directories:
Use the chown command to change ownership of all existing directories to the Cloudera Manager user. If the Cloudera Manager username and group are cloudera-scm, to change the ownership of the headlamp log directory, issue a command similar to the following:
```
$ sudo chown -R cloudera-scm:cloudera-scm /var/log/cloudera-scm-headlamp
```
Use alternate directories:
1. If the directories you plan to use do not exist, create them. For example, to create /var/cm_logs/cloudera-scm-headlamp for use by the cloudera-scm user, run the following commands:
```
mkdir /var/cm_logs/cloudera-scm-headlamp
chown cloudera-scm /var/cm_logs/cloudera-scm-headlamp
```
2. Connect to the Cloudera Manager Admin Console.
3. Select Clusters > Cloudera Management Service
4. Select Scope > role name.
5. Click the Configuration tab.
6. Enter a term in the Search field to find the settings to be changed. For example, you can enter /var or directory.
7. Update each value with the new locations for Cloudera Manager to use.
  Note: The configuration property for the Cloudera Manager Server Local Data Storage Directory (/var/lib/cloudera-scm-server by default) is located on a different page:
  1. Select Administration > Settings.
  2. Type directory in the Search box.
  3. Enter the directory path in the Cloudera Manager Server Local Data Storage Directory property.
8. Click Save Changes to commit the changes.

Create Parcel Directories

On the Cloudera Manager Server host, create a parcel repository directory:
```
$ sudo mkdir -p /opt/cloudera/parcel-repo
```
Change the directory ownership to be the username you are using to run Cloudera Manager:
```
$ sudo chown username:groupname /opt/cloudera/parcel-repo
```
where username and groupname are the user and group names (respectively) you are using to run Cloudera Manager. For example, if you use the default username cloudera-scm, you would run the command:
```
$ sudo chown cloudera-scm:cloudera-scm /opt/cloudera/parcel-repo
```
On each cluster host, create a parcels directory:
```
$ sudo mkdir -p /opt/cloudera/parcels
```
Change the directory ownership to be the username you are using to run Cloudera Manager:
```
$ sudo chown username:groupname /opt/cloudera/parcels
```
where username and groupname are the user and group names (respectively) you are using to run Cloudera Manager. For example, if you use the default username cloudera-scm, you would run the command:
```
$ sudo chown cloudera-scm:cloudera-scm /opt/cloudera/parcels
```

Start the Cloudera Manager Server

The way in which you start the Cloudera Manager Server varies according to which account you want the Server to run under:

As root:

$ sudo $CMF_DEFAULTS/etc/init.d/cloudera-scm-server start

As another user. If you run as another user, ensure that the user you created for Cloudera Manager owns the location to which you extracted the tarball including the newly created database files. If you followed the earlier examples and created the directory /opt/cloudera-manager and the user cloudera-scm, you could use the following command to change ownership of the directory:
```
$ sudo chown -R cloudera-scm:cloudera-scm /opt/cloudera-manager
```
Once you have established ownership of directory locations, you can start Cloudera Manager Server using the user account you chose. For example, you might run the Cloudera Manager Server as cloudera-service. In this case, you have the following options:
- Run the following command:
```
$ sudo -u cloudera-service $CMF_DEFAULTS/etc/init.d/cloudera-scm-server start 
```
- Edit the configuration files so the script internally changes the user, and then run the script as root:
  1. Remove the following line from $CMF_DEFAULTS/etc/default/cloudera-scm-server:
```
export CMF_SUDO_CMD=" "
```
  2. Change the user and group in $CMF_DEFAULTS/etc/init.d/cloudera-scm-server to the user you want the server to run as. For example, to run as cloudera-service, change the user and group as follows:
```
USER=cloudera-service
GROUP=cloudera-service
```
  3. Run the server script as root:
```
$ sudo $CMF_DEFAULTS/etc/init.d/cloudera-scm-server start 
```
To start the Cloudera Manager Server automatically after a reboot:
1. Run the following commands on the Cloudera Manager Server host:
  - RHEL-compatible and SLES
```
$ cp $CMF_DEFAULTS/etc/init.d/cloudera-scm-server /etc/init.d/cloudera-scm-server
$ chkconfig cloudera-scm-server on
```
  - Debian/Ubuntu
```
$ cp $CMF_DEFAULTS/etc/init.d/cloudera-scm-server /etc/init.d/cloudera-scm-server
$ update-rc.d cloudera-scm-server defaults
```
2. On the Cloudera Manager Server host, open the /etc/init.d/cloudera-scm-server file and change the value of CMF_DEFAULTS from ${CMF_DEFAULTS:-/etc/default} to $CMF_DEFAULTS/etc/default.

If the Cloudera Manager Server does not start, see Troubleshooting Installation and Upgrade Problems.

Start the Cloudera Manager Agents

Start the Cloudera Manager Agent according to the account you want the Agent to run under:

To start the Cloudera Manager Agent, run this command on each Agent host:
```
$ sudo $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent start
```
When the Agent starts, it contacts the Cloudera Manager Server.
If you are running single user mode, start Cloudera Manager Agent using the user account you chose. For example, to run the Cloudera Manager Agent as cloudera-scm, you have the following options:
- Run the following command:
```
$ sudo -u cloudera-scm $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent start 
```
- Edit the configuration files so the script internally changes the user, and then run the script as root:
  1. Remove the following line from $CMF_DEFAULTS/etc/default/cloudera-scm-agent:
```
export CMF_SUDO_CMD=" "
```
  2. Change the user and group in $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent to the user you want the Agent to run as. For example, to run as cloudera-scm, change the user and group as follows:
```
USER=cloudera-scm
GROUP=cloudera-scm
```
  3. Run the Agent script as root:
```
$ sudo $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent start 
```
To start the Cloudera Manager Agents automatically after a reboot:
1. Run the following commands on each Agent host:
  - RHEL-compatible and SLES
```
$ cp $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent /etc/init.d/cloudera-scm-agent
$ chkconfig cloudera-scm-agent on
```
  - Debian/Ubuntu
```
$ cp $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent /etc/init.d/cloudera-scm-agent
$ update-rc.d cloudera-scm-agent defaults
```
2. On each Agent, open the $CMF_DEFAULTS/etc/init.d/cloudera-scm-agent file and change the value of CMF_DEFAULTS from ${CMF_DEFAULTS:-/etc/default} to $CMF_DEFAULTS/etc/default.

Install Package Dependencies

When you install with tarballs and parcels, some services may require additional dependencies that are not provided by Cloudera. On each host, install the required packages:

RHEL/CentOS

bind-utils
chkconfig
cyrus-sasl-gssapi
cyrus-sasl-plain
fuse
fuse-libs
gcc
httpd
init-functions
libxslt
mod_ssl
MySQL-python
openssl
openssl-devel
openssl-devel
perl
portmap
postgresql-server >= 8.4
psmisc
python >= 2.4.3-43
python-devel >= 2.4.3-43
python-psycopg2
python-setuptools
sed
service
sqlite
swig
useradd
zlib

SLES

apache2
bind-utils
chkconfig
cyrus-sasl-gssapi
cyrus-sasl-plain
fuse
gcc
libfuse2
libxslt
openssl
openssl-devel
perl
portmap
postgresql-server >= 8.4
psmisc
python >= 2.4.3-43
python-devel >= 2.4.3-43
python-mysql
python-setuptools
python-xml
sed
service
sqlite
swig
useradd
zlib

Debian/Ubuntu

ant
apache2
bash
chkconfig
debhelper (>= 7)
fuse-utils | fuse
gcc
libfuse2
libsasl2-modules
libsasl2-modules-gssapi-mit
libsqlite3-0
libssl-dev
libxslt1.1
lsb-base
make
openssl
perl
postgresql-client@@PG_PKG_VERSION@@
postgresql@@PG_PKG_VERSION@@
psmisc
python-dev (>=2.4)
python-mysqldb
python-psycopg2
python-setuptools
rpcbind
sed
swig
useradd
zlib1g

Start and Log into the Cloudera Manager Admin Console

The Cloudera Manager Server URL takes the following form http://Server host:port, where Server host is the fully qualified domain name (FQDN) or IP address of the host where the Cloudera Manager Server is installed, and port is the port configured for the Cloudera Manager Server. The default port is 7180.

Wait several minutes for the Cloudera Manager Server to start. To observe the startup process, run tail -f /var/log/cloudera-scm-server/cloudera-scm-server.log on the Cloudera Manager Server host. If the Cloudera Manager Server does not start, see Troubleshooting Installation and Upgrade Problems.
In a web browser, enter http://Server host:7180, where Server host is the FQDN or IP address of the host where the Cloudera Manager Server is running.
The login screen for Cloudera Manager Admin Console displays.
Log into Cloudera Manager Admin Console. The default credentials are: Username: admin Password: admin. Cloudera Manager does not support changing the admin username for the installed account. You can change the password using Cloudera Manager after you run the installation wizard. Although you cannot change the admin username, you can add a new user, assign administrative privileges to the new user, and then delete the default admin account.
After you log in, the Cloudera Manager End User License Terms and Conditions page displays. Read the terms and conditions and then select Yes to accept them.
Click Continue.
The Welcome to Cloudera Manager page displays.

Choose Cloudera Manager Edition

From the Welcome to Cloudera Manager page, you can select the edition of Cloudera Manager to install and, optionally, install a license:

Choose which edition to install:
- Cloudera Express, which does not require a license, but provides a limited set of features.
- Cloudera Enterprise Enterprise Data Hub Edition Trial, which does not require a license, but expires after 60 days and cannot be renewed.
- Cloudera Enterprise with one of the following license types:
  - Basic Edition
  - Flex Edition
  - Enterprise Data Hub Edition
If you choose Cloudera Express or Cloudera Enterprise Enterprise Data Hub Edition Trial, you can upgrade the license at a later time. See Managing Licenses.
If you elect Cloudera Enterprise, install a license:
1. Click Upload License.
2. Click the document icon to the left of the Select a License File text field.
3. Go to the location of your license file, click the file, and click Open.
4. Click Upload.
Information is displayed indicating what the CDH installation includes. At this point, you can click the Support drop-down menu to access online Help or the Support Portal.
Click Continue to proceed with the installation.

Choose Cloudera Manager Hosts

Click the Currently Managed Hosts tab.
Choose the hosts to add to the cluster.
Click Continue.
The Cluster Installation Select Repository screen displays.

Install CDH and Managed Service Software

Install CDH and managed services using parcels:
1. Use Parcels
  1. Choose the parcels to install. The choices depend on the repositories you have chosen; a repository can contain multiple parcels. Only the parcels for the latest supported service versions are configured by default.
    You can add additional parcels for lower versions by specifying custom repositories. For example, you can find the locations of the lower CDH 4 parcels at https://username:password@archive.cloudera.com/p/cdh4/parcels/. Or, if you are installing CDH 4.3 and want to use policy-file authorization, you can add the Sentry parcel using this mechanism.
    1. To specify the parcel directory, specify the local parcel repository, add a parcel repository, or specify the properties of a proxy server through which parcels are downloaded, click the More Options button and do one or more of the following:
      
      Parcel Directory and Local Parcel Repository Path - Specify the location of parcels on cluster hosts and the Cloudera Manager Server host. If you change the default value for Parcel Directory and have already installed and started Cloudera Manager Agents, restart the Agents:
      sudo service cloudera-scm-agent restart
      
      Parcel Repository - In the Remote Parcel Repository URLs field, click the button and enter the URL of the repository. The URL you specify is added to the list of repositories listed in the Configuring Cloudera Manager Server Parcel Settings page and a parcel is added to the list of parcels on the Select Repository page. If you have multiple repositories configured, you see all the unique parcels contained in all your repositories.
      
      Proxy Server - Specify the properties of a proxy server.
    2. Click OK.
  2. If you are using Cloudera Manager to install software, select the release of Cloudera Manager Agent. You can choose either the version that matches the Cloudera Manager Server you are currently using or specify a version in a custom repository. If you opted to use custom repositories for installation files, you can provide a GPG key URL that applies for all repositories.
2. Click Continue. Cloudera Manager installs the CDH and managed service parcels. During parcel installation, progress is indicated for the phases of the parcel installation process in separate progress bars. If you are installing multiple parcels, you see progress bars for each parcel. When the Continue button at the bottom of the screen turns blue, the installation process is completed. Click Continue.
Click Continue.
The Host Inspector runs to validate the installation and provides a summary of the results, including all the versions of the installed components. If the validation is successful, click Finish.

Add Services

On the first page of the Add Services wizard, choose the combination of services to install and whether to install Cloudera Navigator:

Select the combination of services to install:

CDH 4	CDH 5
Core Hadoop - HDFS, MapReduce, ZooKeeper, Oozie, Hive, and Hue Core with HBase Core with Impala All Services - HDFS, MapReduce, ZooKeeper, HBase, Impala, Oozie, Hive, Hue, and Sqoop Custom Services - Any combination of services.	Core Hadoop - HDFS, YARN (includes MapReduce 2), ZooKeeper, Oozie, Hive, and Hue Core with HBase Core with Impala Core with Search Core with Spark All Services - HDFS, YARN (includes MapReduce 2), ZooKeeper, Oozie, Hive, Hue, HBase, Impala, Solr, Spark, and Key-Value Store Indexer Custom Services - Any combination of services.

Keep the following in mind:

Some services depend on other services; for example, HBase requires HDFS and ZooKeeper. Cloudera Manager tracks dependencies and installs the correct combination of services.
In a Cloudera Manager deployment of a CDH 4 cluster, the MapReduce service is the default MapReduce computation framework. Choose Custom Services to install YARN, or use the Add Service functionality to add YARN after installation completes.
Note: You can create a YARN service in a CDH 4 cluster, but it is not considered production ready.
In a Cloudera Manager deployment of a CDH 5 cluster, the YARN service is the default MapReduce computation framework. Choose Custom Services to install MapReduce, or use the Add Service functionality to add MapReduce after installation completes.
Note: In CDH 5, the MapReduce service has been deprecated. However, the MapReduce service is fully supported for backward compatibility through the CDH 5 lifecycle.
The Flume service can be added only after your cluster has been set up.

If you have chosen Enterprise Data Hub Edition Trial or Cloudera Enterprise, optionally select the Include Cloudera Navigator checkbox to enable Cloudera Navigator. See Cloudera Navigator Data Management Overview.

Click Continue.

Customize the assignment of role instances to hosts. The wizard evaluates the hardware configurations of the hosts to determine the best hosts for each role. The wizard assigns all worker roles to the same set of hosts to which the HDFS DataNode role is assigned. You can reassign role instances.

Click a field below a role to display a dialog box containing a list of hosts. If you click a field containing multiple hosts, you can also select All Hosts to assign the role to all hosts, or Custom to display the hosts dialog box.

The following shortcuts for specifying hostname patterns are supported:

Range of hostnames (without the domain portion)

Range Definition	Matching Hosts
10.1.1.[1-4]	10.1.1.1, 10.1.1.2, 10.1.1.3, 10.1.1.4
host[1-3].company.com	host1.company.com, host2.company.com, host3.company.com
host[07-10].company.com	host07.company.com, host08.company.com, host09.company.com, host10.company.com

IP addresses
Rack name

Click the View By Host button for an overview of the role assignment by hostname ranges.

When you are finished with the assignments, click Continue.

Configure Database Settings

On the Database Setup page, configure settings for required databases:

Enter the database host, database type, database name, username, and password for the database that you created when you set up the database.
Click Test Connection to confirm that Cloudera Manager can communicate with the database using the information you have supplied. If the test succeeds in all cases, click Continue; otherwise, check and correct the information you have provided for the database and then try the test again. (For some servers, if you are using the embedded database, you will see a message saying the database will be created at a later step in the installation process.)
The Review Changes screen displays.

Review Configuration Changes and Start Services

Review the configuration changes to be applied. Confirm the settings entered for file system paths. The file paths required vary based on the services to be installed. If you chose to add the Sqoop service, indicate whether to use the default Derby database or the embedded PostgreSQL database. If the latter, type the database name, host, and user credentials that you specified when you created the database.
Warning: Do not place DataNode data directories on NAS devices. When resizing an NAS, block replicas can be deleted, which will result in reports of missing blocks.
Click Continue.
The wizard starts the services.
When all of the services are started, click Continue. You see a success message indicating that your cluster has been successfully started.
Click Finish to proceed to the Cloudera Manager Admin Console Home Page.

(Optional) Change the Cloudera Manager User

After configuring your services, the installation wizard automatically starts the Cloudera Management Service, assuming that it runs using cloudera-scm. If you configured this service to run using a user other than cloudera-scm, the Cloudera Management Service roles do not start automatically. To change the service configuration to use the user account that you selected:

Connect to the Cloudera Manager Admin Console.
Do one of the following:
- Select Clusters > Cloudera Management Service.
- On the Home > Status tab, in Cloudera Management Service table, click the Cloudera Management Service link.
Click the Configuration tab.
Use the search box to find the property to change. For example, you might enter "system" to find the System User and System Group properties.
Make any changes required to the System User and System Group to ensure Cloudera Manager uses the proper user accounts.
Click Save Changes.
Start the Cloudera Management Service roles.

Change the Default Administrator Password

As soon as possible, change the default administrator password:

Click the logged-in username at the far right of the top navigation bar and select Change Password.
Enter the current password and a new password twice, and then click OK.

Configure Oozie Data Purge Settings

If you added an Oozie service, you can change your Oozie configuration to control when data is purged to improve performance, cut down on database disk usage, or to keep the history for a longer period of time. Limiting the size of the Oozie database can also improve performance during upgrades. See Configuring Oozie Data Purge Settings Using Cloudera Manager.

Test the Installation

You can test the installation following the instructions in Testing the Installation.

(Optional) Manually Install CDH and Managed Service Packages

Installing Impala