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Trac Backup
Table of Contents
Trac backups are simply a copied snapshot of the entire project environment directory, including the database. Backups can be created using the hotcopy command in trac-admin.
Note: Trac uses the hotcopy nomenclature to match that of Subversion, to make it easier to remember when managing both Trac and Subversion servers.
Creating a Backup
To create a backup of a live TracEnvironment simply run:
$ trac-admin /path/to/projenv hotcopy /path/to/backupdir
trac-admin will lock the database while copying.
The resulting backup directory is safe to handle using standard file-based backup tools like tar or dump/restore.
Please note, the hotcopy command will not overwrite a target directory and when such exists, the operation ends with an error: Command failed: [Errno 17] File exists: This is discussed in #3198.
Restoring a Backup
To restore an environment from a backup, stop the process running Trac, ie the Web server or tracd, restore the contents of your backup (path/to/backupdir) to your project environment directory and restart the service.
To restore a PostgreSQL database backup, use the command:
psql -U <user> -d <database> -f postgresql.dump
The <database> option is the same as the database connection string in the [trac] database option of trac.ini.
See also: TracAdmin, TracEnvironment, TracGuide, TracMigrate
