Completing the Procedure - Appliance for Hadoop

Appliance for Hadoop 3 and 4 Platforms Hardware Replacement Guide for Customers
Product
Appliance for Hadoop
Published
March 2018
Language
English (United States)
Last Update
2018-05-09
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ika1471885266504.ditamap
dita:ditavalPath
hadoop3_4.ditaval.ditaval
dita:id
gjo1471650852867
Product Category
Hardware
  1. Return to Server Management Client.
  2. In the Locator LED Enabled window, click Disable.
  3. When the Disable Locator LED Success window appears, click OK.
  4. From the node that is being serviced, perform a local stop of the Hadoop services:
    1. In the Server Management Client Tree View, select the node.
    2. Select Functions > Connect.
    3. In the Connect dialog box, select Secure Shell (SSH).
    4. Click Ok.
    5. In the New Connection dialog box, ensure Display Connections Manager is checked and click Ok.
    6. In the Client Connections Window, in the Console, type the root username and press Enter.
    7. After a prompt appears asking for the password, type the root password.
    8. Type hcli node stop
    9. Answer yes to each prompt.
    Teradata recommends that you restart the Hadoop services within 10 minutes of stopping the services.
  5. Configure replaced disks to make them available to Hadoop services:
    1. Type hcli support configureDisk
    2. Answer yes to each prompt.
      If any problems are encountered, notify Teradata Customer Support. Use a contact method that is in accordance with your service contract. If your system is not set up with Automatic Incident Creation (AIC), log on to https://access.teradata.com and initiate or update an incident. If your system is set up with AIC, close the maintenance window and add a comment.
  6. Restart the Hadoop services on the node to bring the Hadoop Data Node into the configuration:
    1. Type hcli node start
    2. Answer yes to each prompt.
    3. Verify that the message "Script completed successfully, all Hadoop processes running" displays, and confirm that no errors are reported.
    4. Close the Console.
    If any problems are encountered, notify Teradata Customer Support. Use a contact method that is in accordance with your service contract. If your system is not set up with Automatic Incident Creation (AIC), log on to https://access.teradata.com and initiate or update an incident. If your system is set up with AIC, close the maintenance window and add a comment.
  7. Verify the namenode service detects the new or updated node and recognizes all of the storage available:
    1. From SWS, use the Firefox browser to navigate to: http://Master_Node_IP:50070
    2. Select Live Nodes to display a list of the nodes, and then verify that all the data nodes are in the list and the correct capacities are displayed. Contact Teradata Customer Support if you do not see the nodes and capacities that you expect to see.
  8. Add a comment to the summary alert:
    1. In the Server Management Client window, select the Summary Alerts tab. A list of summary alerts appears.
    2. Locate the appropriate summary alert.
    3. On the right side, click the three-bar icon.
    4. Select Add Comment. The Comments window appears.
    5. You must add entries in both the Author and the Comment box.
    6. Click Submit. The comment is attached to the summary alert.
  9. Clear the summary alert:
    1. In the Summary Alerts tab, select the alert summary folder containing the corresponding failed drive.
    2. In the Summary Alerts tab, select Functions > Clear Summary Alert.
    3. At the confirmation prompt, click Ok. The status of the alert group changes from Active to Cleared. Clearing an alert group removes it from the list of problem scenarios being monitored.
  10. Close the maintenance window:
    1. In the Server Management Client window, click the Overview tab.
    2. In the Maintenance Window on the right side of the column, click the trash can icon.
    3. In the Maintenance Window, click Yes.
    4. In the Information window, click OK.
  11. Log off Server Management Client.