Errors are seen trying to run the Vertica backup.
Unable to run local backup for Vertica using vbr.py script.
Unable to run remote backup for Vertica using vbr.py script.
We are trying to set up a Vertica backup using vbr.py.
We are trying to set up a Vertica copycluster using vbr.py.
We have validated that the dradmin user has passwordless ssh enabled and working.
The backups fail with this message:
[[email protected] backup]$ /opt/vertica/bin/vbr.py --task backup --config-file /home/dradmin/backup/backup_snapshot.ini
Error: Errors connecting to remote hosts: <IP>. Check SSH settings, and that the same Vertica version is installed on all nodes.
The ssh configuration in the sshd_config file is set with No for AllowTcpForwarding.
All supported DX NetOps Performance Management releases
Vertica requires AllowTcpForwarding set to Yes in the /etc/ssh/sshd_config.
To resolve the error edit the /etc/ssh/sshd_config setting AllowTcpForwarding from No to Yes. Save the changes and restart the ssh service for it to read in the new configuration.
To restart it for RH 7.x releases we'd run "systemctl restart ssh".
Now the backup command using vbr.py should succeed.
Vertica Configuring Backup Hosts documentation
Notes/Tips for SSH configuration: