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NetBackup™ for Hadoop Administrator's Guide
Last Published:
2024-03-27
Product(s):
NetBackup & Alta Data Protection (10.4)
- Introduction
- Prerequisites and best practices for the NetBackup for Hadoop plug-in for NetBackup
- Configuring NetBackup for Hadoop
- About configuring NetBackup for NetBackup for Hadoop
- Managing backup hosts
- Adding NetBackup for Hadoop credentials in NetBackup
- Configuring the NetBackup for Hadoop plug-in using the NetBackup for Hadoop configuration file
- Configuring NetBackup for a highly-available NetBackup for Hadoop cluster
- Configuring a custom port for the NetBackup for Hadoop cluster
- Configuring number of threads for backup hosts
- Configuring number of streams for backup hosts
- Configuring distribution algorithm and golden ratio for backup hosts
- Configuring communication between NetBackup and Hadoop clusters that are SSL-enabled (HTTPS)
- Configuration for a NetBackup for Hadoop cluster that uses Kerberos
- Hadoop.conf configuration for parallel restore
- Create a BigData policy for Hadoop clusters
- Disaster recovery of a NetBackup for Hadoop cluster
- Performing backups and restores of Hadoop
- Troubleshooting
- About troubleshooting NetBackup for NetBackup for Hadoop issues
- About NetBackup for Hadoop debug logging
- Troubleshooting backup issues for NetBackup for Hadoop data
- Backup operation fails with error 6609
- Backup operation failed with error 6618
- Backup operation fails with error 6647
- Extended attributes (xattrs) and Access Control Lists (ACLs) are not backed up or restored for Hadoop
- Backup operation fails with error 6654
- Backup operation fails with bpbrm error 8857
- Backup operation fails with error 6617
- Backup operation fails with error 6616
- Backup operation fails with error 84
- NetBackup configuration and certificate files do not persist after the container-based NetBackup appliance restarts
- Unable to see incremental backup images during restore even though the images are seen in the backup image selection
- One of the child backup jobs goes in a queued state
- Troubleshooting restore issues for NetBackup for Hadoop data
- Restore fails with error code 2850
- NetBackup restore job for NetBackup for Hadoop completes partially
- Extended attributes (xattrs) and Access Control Lists (ACLs) are not backed up or restored for Hadoop
- Restore operation fails when Hadoop plug-in files are missing on the backup host
- Restore fails with bpbrm error 54932
- Restore operation fails with bpbrm error 21296
- Hadoop with Kerberos restore job fails with error 2850
- Configuration file is not recovered after a disaster recovery
Restore fails with error code 2850
This error is encountered in the following scenarios:
Error:2850 "errno = 62 - Timer expired"
Workaround:
Update firewall settings so that the backup hosts can communicate with the NetBackup for Hadoop cluster.
Requested files are not recovered.
Workaround:
Verify that the backup host has valid Ticket Granting Ticket (TGT) in case of Kerberos enabled NetBackup for Hadoop cluster.
Renew the TGT.
Incorrect values and invalid credentials for the application server.
Workaround:
Ensure that you have correctly entered hostname of destination NetBackup for Hadoop cluster during restore. This should be same as provided in tpconfig command.