Backing Up Data

This page describes how to back up your JIRA data, and establish processes for maintaining continual backups. Backing up your JIRA data is the first step in upgrading your server to a new JIRA revision, or splitting your JIRA instance across multiple servers. See also Restoring JIRA data and Restoring a Project from Backup.

Jira の完全なバックアップの作成は、2 段階で行われます。

1. データベース コンテンツのバックアップ

There are two possibilities: native database-specific tools, or JIRA's XML backup utility.

For production use, it is strongly recommended to use native database-specific tools. The XML backup is not guaranteed to be consistent, as the database is not locked during the backup process.

Using native database tools

All serious databases come with tools to back up and restore databases (the 'MS' inRDBMS). We strongly recommend these tools in preference to the XML backup option described below, as they:

• 単一時点でバックアップを取ることによって、データベースの整合性を確保します。
• Jira の XML バックアップより処理が速く、消費リソースも少なくなります。
• 既存のバックアップ戦略と連携できます (例: データベースを使用するすべてのアプリケーションで 1 回のバックアップ実行を許可)。
• インクリメンタル (「フル」ではなく) バックアップを実現し、ディスク スペースを節約します。
• Jira がバックアップ形式として XML を使用することに関連する、文字エンコーディングやフォーマットの問題を防ぎます。

See the documentation for your database on how to set up periodic backups. This typically involves a cron job or Windows scheduled task invoking a command-line tool like mysqldump or pg_dump,

Jira の XML バックアップ ユーティリティの使用

To perform a once-off backup, e.g. before an upgrade, follow the steps below. (Note that you can also configure scheduled XML backups, as described in Automating JIRA Backups. )

1. Log in as a user with the 'JIRA System Administrators' global permission.
2. Bring up the administration page by clicking either the 'Administration' link on the top bar or the title of the Administration box on the dashboard.
3. Under the 'Import & Export' sub-menu in the left-hand navigation column, click the 'Backup Data to XML' link. This will display the 'Backup JIRA data page:
   
4. In 'File name' field, type the full path, including filename, of the location to which you want JIRA to write the backup file. Note: Ensure that JIRA has rights to write to this location.
5. (Optional but recommended) Select the 'Backup as Zip' checkbox.
6. Click the 'Backup' button, and wait while your JIRA data is backed up.
7. When the backup is complete, a message will be displayed, confirming that JIRA has written the data to the file you specified.

2. data ディレクトリをバックアップする

The data directory is a sub-directory of your JIRA Home Directory. It contains application data for JIRA, e.g. if you have attachments enabled, all files attached to JIRA issues are stored in the data\attachments directory (not in the database).

To back up the data directory , you need to create a snapshot of the data directory (including all files and subdirectories), then back up the snapshot. Note that the directory structure under the data directory must be preserved in the snapshot.

Creating this snapshot is an operating system-specific task, e.g.:

• On MS Windows, a batch script copying the directory can be written and scheduled periodically (Programs > Accessories > System Tools > Scheduled Tasks). There are also various utilities available to simplify this (eg. http://www.picozip.com).
• On Linux/Solaris, it is best to write a small shell script, placed in /etc/cron.daily , backing up files to a directory like /var/backup/jira . It is best to copy an existing script in /etc/cron.daily to ensure local conventions (file locations, lockfiles, permissions) are adhered to.