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  1. Home
  2. Veritas NetBackup™ for Hadoop Administrator's Guide
  3. Configuring NetBackup for Hadoop
  4. Disaster recovery of a Hadoop cluster
Veritas NetBackup™ for Hadoop Administrator's Guide

Disaster recovery of a Hadoop cluster

For disaster recovery of the Hadoop cluster, perform the following tasks:

Table: Performing disaster recovery

Task

Description

After the Hadoop cluster and nodes are up, prepare the cluster for operations with NetBackup.

Perform the following tasks:

Update firewall settings so that the backup hosts can communicate with the Hadoop cluster.

Ensure that webhdfs service is enabled on the Hadoop cluster.

See Preparing the Hadoop cluster.

To establish a seamless communication between Hadoop clusters and NetBackup for successful backup and restore operations, you must add and update Hadoop credentials to NetBackup master server.

Use tpconfig command to add Hadoop credentials in NetBackup master server.

See Adding Hadoop credentials in NetBackup.

The backup hosts use the hadoop.conf file to save the configuration settings of the Hadoop plug-in. You need to create separate file for each backup host and copy it to /usr/openv/netbackup/. You need to create the hadoop.conf file in JSON format.

With this release, the following plug-in settings can be configured

  • See Configuring NetBackup for a highly-available Hadoop cluster.

  • See Configuring number of threads for backup hosts.

Update the BigData policy with the original NameNode name.

See Configuring NetBackup policies for Hadoop plug-in.

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