yamcsadmin backup¶

Synopsis¶

Description¶

Use yamcsadmin backup when you want to save and restore Yamcs data.

Backups are performed at the level of a tablespace, which (unless otherwise configured) corresponds with an instance name. A special tablespace _global contains data that is not specific to an instance.

The backup directory is in binary format and can contain multiple restore points, one for each time the create command was used. Use the list command to see all restore points in a backup directory.

Commands¶

create --backup-dir <DIR> [--data-dir <DIR>] [--url <HOST:PORT>] <TABLESPACE>

Create either a hot or a cold backup of a Yamcs tablespace. For cold backups, specify the --data-dir property, for hot backups specify the --host property.

delete --backup-dir <DIR> <ID>...

Delete one or more backups.

list --backup-dir <DIR>

List the existing backups.

purge --backup-dir <DIR> --keep <N>

Purge old backups.

restore --backup-dir <DIR> --restore-dir <DIR> [<ID>]

Restore a backup by its ID.

If unspecified <ID> defaults to the last backup.

Note that backups can only be restored when Yamcs is not running.

Options¶

--backup-dir <DIR>¶

Directory containing backups.

When used with the create command, the directory is automatically created if it does not yet exist.

--data-dir <DIR>¶

This option is only valid for the create command.

Path to a Yamcs data directory. This must be specified when performing a cold backup.

--restore-dir <DIR>¶

This option is only valid for the restore command.

Directory where to restore the backup.

--host <HOST:PORT>¶

This option is only valid for the create command.

Perform a hot backup. This allows to take a consistent backup while Yamcs is running. Backup are currently triggered using a JMX operation.

--keep <N>¶

This option is only valid for the purge command.

The number of backups to keep.

<ID>¶

A unique identifier for a restore point. You can find existing identifiers using the list command.