NetBackup™ for Hadoop Administrator's Guide
- Introduction
- Prerequisites and best practices for the Hadoop plug-in for NetBackup
- Configuring NetBackup for Hadoop
- About configuring NetBackup for Hadoop
- Managing backup hosts
- Adding Hadoop credentials in NetBackup
- Configuring the Hadoop plug-in using the Hadoop configuration file
- Configuring NetBackup for a highly-available Hadoop cluster
- Configuring a custom port for the 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 Hadoop cluster that uses Kerberos
- Hadoop.conf configuration for parallel restore
- Create a BigData policy for Hadoop clusters
- Disaster recovery of a Hadoop cluster
- Performing backups and restores of Hadoop
- Troubleshooting
- About troubleshooting NetBackup for Hadoop issues
- About NetBackup for Hadoop debug logging
- Troubleshooting backup issues 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 Hadoop data
- Restore fails with error code 2850
- NetBackup restore job 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
- Index
Limitations
Review the following limitations before you deploy the Hadoop plug-in:
Only RHEL and SUSE platforms are supported for backup hosts. For platforms supported for Hadoop clusters, see the NetBackup Database and Application Agent Compatibility List.
Delegation Token authentication method is not supported for Hadoop clusters.
Hadoop plug-in does not capture Extended Attributes (xattrs) or Access Control Lists (ACLs) of an object during backup and hence these are not set on the restored files or folders.
For highly available Hadoop cluster, if fail-over happens during a backup or restore operation, the job fails.
If you cancel a backup job manually while the discovery job for a backup operation is in progress, the snapshot entry does not get removed from the Hadoop web graphical user interface (GUI).
If the CRL expires during the backup of an HTTPS-based Hadoop cluster, the backup runs partially.
If you have multiple CRL-based Hadoop clusters, ensure that you add different backup hosts for every cluster.
Backup and restore operations are not supported with Kerberos authentication if NB_FIPS_MODE is enabled at the
bp.conf.Note:
To perform backup with Kerberos authentication, deploy a new backup host with NB_FIPS_MODE=0 or disabled.