This is the documentation for Cloudera Navigator 1.2.0.
Documentation for other versions is available at Cloudera Documentation.

Cloudera Navigator Metadata Server

The Cloudera Navigator Metadata Server extracts metadata from the services managed by the Cloudera Manager Server. The following resource types are supported:
  • HDFS - Extracts HDFS metadata at the next scheduled extraction run after an HDFS checkpoint. However, if you have High Availability enabled, metadata is extracted as soon as it is written to the JournalNodes.
  • Hive - Extracts database and table metadata from Hive Metastore Server.
  • MapReduce - Extracts job metadata from the JobTracker. The default setting in Cloudera Manager retains a maximum of five jobs, which means if you run more than five jobs between Navigator extractions, the Navigator Metadata Server would extract the five most recent jobs.
  • YARN - Extracts job metadata from the Job History Server.
  • Oozie - Extracts Oozie workflows from the Oozie Server.
  • Pig - Extracts Pig script runs from the JobTracker or Job History Server.

Adding the Metadata Server Role

The Cloudera Navigator Metadata component is a beta release and requires a Cloudera Enterprise Flex Edition or Data Hub Edition license. It is not supported with a Cloudera Enterprise Data Hub Edition Trial license. If you use a Trial license, the Navigator Metadata Server role does not appear in the role assignment screen if you choose to install Cloudera Navigator. If you later upgrade the license, the Navigator Metadata Server role appears in the role assignment screen, but is not assigned to a host by default. You can create the role as follows:

  1. In the Cloudera Manager Admin Console, do one of the following:
    • In the Home page, Status tab, select Cloudera Management Service > mgmt.
    • Select Clusters > Cloudera Management Service > mgmt.
  2. Click the Instances tab.
  3. Click the Instances tab and click the Add button. The Customize Role Assignments page displays.
  4. 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. These assignments are typically acceptable, but you can reassign services to hosts of your choosing, if desired.

    Click a field below a role to display a dialog containing a pageable 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 pageable hosts dialog.

    The following shortcuts for specifying host names 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 host ranges.

  5. Click Finish. The Instances page displays.
  6. Check the checkbox next to the navigatormetaserver role.
  7. Select Actions for Selected > Start.

Configuring the Metadata Server Storage Directory

Describes how to configure where the Cloudera Navigator Metadata Server stores extracted data.

  1. In the Cloudera Manager Admin Console, do one of the following:
    • In the Home page, Status tab, select Cloudera Management Service > mgmt.
    • Select Clusters > Cloudera Management Service > mgmt.
  2. Select Configuration > View and Edit.
  3. Click the Navigator Metadata Server (beta) Default Group.
  4. Specify the directory in the Navigator Metadata Server Storage Dir property.
  5. Click Save Changes.
  6. Click the Instances tab.
  7. Check the checkbox next to the navigatormetaserver role.
  8. Select Actions for Selected > Restart.

Configuring the Metadata Server Port

Describes how to configure the Cloudera Navigator Metadata Server port on which the Metadata UI is accessed.

  1. In the Cloudera Manager Admin Console, do one of the following:
    • In the Home page, Status tab, select Cloudera Management Service > mgmt.
    • Select Clusters > Cloudera Management Service > mgmt.
  2. Select Configuration > View and Edit.
  3. Select Navigator Metadata Server (beta) Default Group > Ports and Addresses.
  4. Specify the port in the Navigator Metadata Server Port property.
  5. Click Save Changes.
  6. Click the Instances tab.
  7. Check the checkbox next to the navigatormetaserver role.
  8. Select Actions for Selected > Restart.