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Jonathan Guyer edited this page Sep 26, 2014 · 1 revision

Trac Backup

TracGuideToc

Since Trac uses a database backend, some extra care is required to safely create a backup of a [wiki:TracEnvironment]. Luckily, [wiki:TracAdmin] has a command to make backups easier: `hotcopy`. 

  ''Note: Trac uses the `hotcopy` nomenclature to match that of [http://subversion.tigris.org/ 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:

[wiki:TracAdmin] 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, that hotcopy command does not overwrite target directory and when such exists, hotcopy ends with error: `Command failed: [Errno] File exists:` This is discussed in [trac:ticket:3198].

Restoring a Backup

Backups are simply a copied snapshot of the entire [wiki:TracEnvironment] directory, including the SQLite database.

To restore an environment from a backup, stop the process running Trac (i.e. the Web server or [wiki:TracStandalone]), restore the contents of your backup (path/to/backupdir) to your [wiki:TracEnvironment] directory and restart the service.

See also: TracAdmin, TracEnvironment, TracGuide, [trac:TracMigrate]
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