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[26484]1= Trac Backup =
2[[TracGuideToc]]
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4Since Trac uses a database backend, some extra care is required to safely create a backup of a [wiki:TracEnvironment project environment]. Luckily, [wiki:TracAdmin trac-admin] has a command to make backups easier: `hotcopy`.
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6  ''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.''
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8== Creating a Backup ==
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10To create a backup of a live TracEnvironment, simply run:
11{{{
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13  $ trac-admin /path/to/projenv hotcopy /path/to/backupdir
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15}}}
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17[wiki:TracAdmin trac-admin] will lock the database while copying.''
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19The resulting backup directory is safe to handle using standard file-based backup tools like `tar` or `dump`/`restore`.
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21Please, note, that hotcopy command does not overwrite target directory and when such exists, hotcopy ends with error: `Command failed: [Errno 17] File exists:` This is discussed in [trac:ticket:3198 #3198].
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23=== Restoring a Backup ===
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25Backups are simply a copied snapshot of the entire [wiki:TracEnvironment project environment] directory, including the SQLite database.
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27To restore an environment from a backup, stop the process running Trac (i.e. the Web server or [wiki:TracStandalone tracd]), restore the contents of your backup (path/to/backupdir) to your [wiki:TracEnvironment project environment] directory and restart the service.
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29----
30See also: TracAdmin, TracEnvironment, TracGuide, [trac:TracMigrate TracMigrate]
Note: See TracBrowser for help on using the repository browser.