PostgreSQL 备份和恢复管理器，Barman 1.4.0 发布

Barman (备份和恢复管理器) for PostgreSQL 是 PostgreSQL 数据库服务器的灾难恢复工具，允许远程备份多个服务器，帮助 DBA 在数据恢复阶段的关键工作。

Barman 1.4.0 发布，此版本最主要的功能是文件级别增量备份功能，每次完整备份数据重复数据删除率很容易就能达到 50-70%，显著降低了备份时间和磁盘空间。

PostgreSQL 9.4 可以集成 Barman 的 "pg_stat_archiver" 视图。此版本还改进了 WAL 文件管理，优化 WAL 静态统计数据的计算。相关的单元测试使得代码更健壮，同时还修复了一些 bug。

相关链接

• Website: http://www.pgbarman.org/

• Download:    http://sourceforge.net/projects/pgbarman/files/

• Documentation:    http://www.pgbarman.org/documentation/

• Man page, section 1:    http://docs.pgbarman.org/barman.1.html

• Man page, section 5:    http://docs.pgbarman.org/barman.5.html

• Support:    http://www.pgbarman.org/support/

• pgespresso extension:    https://github.com/2ndquadrant-it/pgespresso

发行说明：

• Incremental base backup implementation through the "reuse_backup"    global/server option. Possible values are "off" (disabled, default),    "copy" (preventing unmodified files from being transferred) and    "link" (allowing for deduplication through hard links).

• Store and show deduplication effects when using "reuse_backup=link".

• Added transparent support of pg_stat_archiver (PostgreSQL 9.4) in    "check", "show-server" and "status" commands.

• Improved administration by invoking WAL maintenance at the end of a    successful backup.

• Changed the way unused WAL files are trashed, by differentiating    between concurrent and exclusive backup cases.

• Improved performance of WAL statistics calculation.

• Treat a missing pg_ident.conf as a WARNING rather than an error.

• Refactored output layer by removing remaining "yield" calls.

• Check that rsync is in the system path.

• Include history files in WAL management.

• Improved robustness through more unit tests.

• Fixed bug #55: Ignore fsync EINVAL errors on directories.

• Fixed bug #58: retention policies delete.

下载：

• Release Notes:    https://sourceforge.net/projects/pgbarman/files/1.4.0/

• Sources:    http://sourceforge.net/projects/pgbarman/files/1.4.0/barman-1.4.0.tar.gz/download

• RPMs for RHEL/CentOS 5:    http://sourceforge.net/projects/pgbarman/files/1.4.0/barman-1.4.0-1.rhel5.noarch.rpm/download    (dependencies:    https://sourceforge.net/projects/pgbarman/files/rhel5-deps/)

• RPMs for RHEL/CentOS 6:    http://sourceforge.net/projects/pgbarman/files/1.4.0/barman-1.4.0-1.rhel6.noarch.rpm/download    (dependencies:    https://sourceforge.net/projects/pgbarman/files/rhel6-deps/)

• PyPI:    http://pypi.python.org/pypi/barman/1.4.0

• pgespresso on PostgreSQL Extension framework (PGXN):    http://pgxn.org/dist/pgespresso/

• pgespresso RPM/Debian packages:    https://sourceforge.net/projects/pgbarman/files/pgespresso/

• Online documentation:    http://www.pgbarman.org/documentation

• PDF documentation:    http://sourceforge.net/projects/pgbarman/files/1.4.0/barman-tutorial.en.pdf/download

来自：http://www.oschina.net/news/59146/barman-1-4-0