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  1. Home
  2. NetBackup™ for Hadoop Administrator's Guide
  3. Configuring NetBackup for Hadoop
  4. Hadoop.conf configuration for parallel restore
NetBackup™ for Hadoop Administrator's Guide

Hadoop.conf configuration for parallel restore

TBD

"application_servers": {
"punnbuucsm5b29-v14.vxindia.veritas.com": {
"port": 9000,
"distro_algo": 4,
"num_streams": 2,
"golden_ratio": 80,
"additionalBackupHosts": ["bh1.vxindia.veritas.com", "bh2.vxindia.veritas.com"]
		}
	},
"number_of_threads": 10
}
------------

num_stream: To enhance the restore performance, you can configure the number of streams that each backup host can allow. Default value is 1.

additionalBackupHosts: To enhance the restore performance, you can configure additional backup host details. You can specify the hostname of additional backup hosts.

Notes:

  • You must keep additionalBackupHosts empty, if no additional backup hosts are available.

  • The hadoop.conf configuration must be same on all the backup hosts.

  • The num_stream configuration must be same for backup and restore process.

  • Hadoop setups and NetBackup setups must be in the same timezone.

  • If you increase streams, adjust the maximum number of jobs per client, update the stu setting for multiple threads, and update the client timeout to avoid abrupt failures.

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