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OceanStor 9000 V300R006C00 File System Feature Guide 12

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Deleting a Hadoop Node

Deleting a Hadoop Node

This section explains how to delete one or more Hadoop nodes from the Hadoop cluster.

Prerequisites

OceanStor 9000 has interconnected with the Hadoop cluster.

Procedure

  1. As instructed by the Hadoop product documentation, log in to FusionInsight Hadoop Manager or Cloudera Manager and delete nodes.
  2. On DeviceManager, delete the IP address of the node to be deleted.
    1. Log in to DeviceManager.
    2. Choose Provisioning > Share > NFS (Linux/UNIX/MAC).
    3. Select the data analysis directory. In Client Information, select the IP address or IP address segment to be deleted. Then click Remove.
  3. Check the interconnection parameters.

    If fs.nas.task.nodes includes the IP address of the node to be deleted, delete the IP address.

  4. Restart the Hadoop cluster.

    • FusionInsight Hadoop. On FusionInsight Hadoop Manager, choose Services > More Actions > Stop cluster. Then select Start cluster.

    • Cloudera Hadoop: Log in to Cloudera Manager and choose > Restart.

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Updated: 2019-06-27

Document ID: EDOC1000122519

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