Managing Hadoop Accounts

This chapter contains the following sections:

Adding a Hadoop Account

If you want to manage your Hadoop cluster using Cisco UCS Director Express for Big Data, add a Hadoop account.

Procedure

Step 1

Choose Solutions > Big Data > Accounts.

Step 2

Click Hadoop Accounts.

Step 3

Click Add.

Step 4

On the Add Account screen, complete the following fields:

Name Description

Pod drop-down list

The pod to which you add the Hadoop account.

Account Name field

The account name.

Account Type drop-down list

The type of Hadoop distribution used for the cluster. Choose one of the following:

  • Cloudera

  • MapR

  • Hortonworks

Management Console IP field

The management console IP address.

SSH (root) Password field

The password associated with the SSH username.

Confirm Password field

The password associated with the SSH username.

Management Console Protocol drop-down list

Choose HTTP or HTTPS protocol.

Management Console Port Number field

Enter the port number. Enter an integer between 1024 and 65535.

Hadoop Manager Password field

The password associated with the Hadoop Manager for that account type.

Confirm Password field

The password associated with the Hadoop Manager for that account type.

Step 5

Click Submit.

Step 6

For the following actions, select a Hadoop account.

Name

Description

Edit

Allows you to edit a Hadoop account.

Delete

Deletes a Hadoop account.

Check Configuration

Allows you to validate an existing cluster configuration.

Rollback Cluster

Allows you to roll back a cluster and make all the nodes in the cluster available for bare metal servers. Roll back is not supported for a derived cluster account.

Launch Hadoop Manager

Allows you to launch the Hadoop manager from Cisco UCS Director Express for Big Data

View Details

Provides details of a Hadoop account.

Run Inventory

Collects the inventory of the Hadoop cluster for the selected Hadoop Account and the data persists in the Cisco UCS Director Express for Big Data database.

Configure Cluster

Allows you to customize the Hadoop cluster after creation.

Modify Credentials

Allows you to modify the SSH, admin Console credentials, and management console protocol and port details for a Hadoop account.

Running a Cluster Inventory for a Hadoop Account

When you create a Hadoop Account, a new system task (inventory collector) is created within the account. Navigate to the Big Data Tasks folder here: Administration > System > System Tasks. The system task collects the inventory of the Hadoop cluster for the selected Hadoop Account and establishes data in the Cisco UCS Director database. This collector adds to the system scheduler so that the system scheduler can be called at the interval configured in the collector (for example, 30 minutes).

For more information on how to manage system tasks in Cisco UCS Director, see the latest Cisco UCS Director Administration Guide.

Procedure

Step 1

Choose Solutions > Big Data > Accounts.

Step 2

Click Hadoop Accounts.

Step 3

On the Accounts screen, choose the Hadoop Account for which you want to run the inventory.

Step 4

Click Run Inventory.

Step 5

Click Submit.

Purging Big Data Cluster Account Details

A new system task (purging) is created within the account. Navigate to the Big Data Tasks folder here: Administration > System > System Tasks. The system scheduler deletes the monitoring and metric data that are older than 18 days. When the Cisco UCS Director Express for Big Data is up:

  • the stale entries are deleted for the valid accounts that do not have add nodes.

  • the account details are deleted for the invalid accounts.

Rolling Back a Hadoop Cluster for a Hadoop Account

You can roll back a Hadoop cluster and make all the nodes in the cluster available for a bare metal server. However, roll back is not supported for a derived cluster account.

Procedure

Step 1

Choose Solutions > Big Data > Accounts.

Step 2

Click Hadoop Accounts.

Step 3

On the Accounts screen, choose the Hadoop account for which you want to roll back the cluster.

Step 4

Click Rollback Cluster.

Step 5

On the Rollback Cluster screen, click Submit.

Access to Hadoop Managers from Cisco UCS Director Express for Big Data

You can access Hadoop managers for all the Hadoop accounts that you create in Cisco UCS Director Express for Big Data. Choose Solutions > Big Data > Accounts, and then click Hadoop Accounts. You can launch the Hadoop manager in supported browsers by clicking Launch Hadoop Manager.