Managing backup hosts
A backup host acts as a proxy client that hosts all the backup and restore operations for HBase clusters. For the HBase plug-in for NetBackup, the backup host performs all the backup and restore operations without the need to install a separate agent on the HBase cluster.
The backup host must be a Linux computer. NetBackup supports only RHEL and SUSE platforms as a backup host.
The backup host can be a NetBackup client or a media server or a primary server. NetBackup recommends that you have a media server as a backup host.
Consider the following before adding a backup host:
For backup operations, you can add one or more backup hosts.
For restore operations, you can add only one backup host.
A primary, media, or client can perform the role of a backup host.
HBase plug-in for NetBackup is deployed on all the backup hosts.
When you use multiple backup hosts, make sure that all backup hosts can communicate with the media server.
You can add a backup host when you configure the BigData policy. More information is available on how to create a policy.
See Create a BigData policy for HBase clusters.
To add a backup host
- Open the policy that you want to edit.
- In the Backup selections tab, click Add.
- Add the backup host in the following format:
Backup_Host=<hostname>
Alternatively, you can also add a backup host using the following command:
bpplinclude PolicyName -add "Backup_Host=hostname"
- As a best practice, add the entries of all the Hprimary servers and Region servers to the
/etc/hostsfile on all the backup hosts. You must add the host name in FQDN format.OR
Add the appropriate DNS entries in the
/etc/resolve.conffile.
To remove a backup host
- Open the policy that you want to edit.
- In the Backup selections tab, locate the backup selection that contains backup host that you want to remove.
- Click Actions > Delete.
Alternatively, you can also remove a backup host using the following command:
bpplinclude PolicyName -delete "Backup_Host=hostname"