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Waiting for (the) BaRMan - PostgreSQL wiki

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Oct 20, 2011 ... Waiting for (the) BaRMan. Gabriele Bartolini. http://www.2ndQuadrant.com/. Spokesperson: Gianni Ciolli ...

Waiting for (the) BaRMan Gabriele Bartolini

http://www.2ndQuadrant.com/

Spokesperson: Gianni Ciolli

www.2ndQuadrant.com

BaRMan • BaRMan stands for: – Backup – Recovery – Manager

• Disaster recovery tool for PostgreSQL – Physical backups

• Inspired by RMAN from Oracle • Currently under development – Will be released as open-source soon – Written in Python

Copyright © 2011, 2ndQuadrant Limited

www.2ndQuadrant.com

Disaster recovery architecture

PG1 PG2

...

PGx

Backup Server

Copyright © 2011, 2ndQuadrant Limited

www.2ndQuadrant.com

Key aspects • • • • • • • • • •

Remote backups Multiple PostgreSQL servers Multiple PostgreSQL versions (8.2 or higher) Multiple base backups per server Compression of WAL segments Retention policies for base backups and WALs Recovery (time or transaction ID) Datadir and tablespaces relocation for recovery Sandbox Recovery Convention over configuration

Copyright © 2011, 2ndQuadrant Limited

www.2ndQuadrant.com

Just to whet your appetite $ barman server backup main-9.1 Starting backup for server main-9.1 in /var/lib/main-9.1/base/20111020T000532 Backup begin at xlog location: 0/7000020 (000000010000000000000007, 00000020) Backup end at xlog location: 0/70000A0 (000000010000000000000007, 000000A0) Backup completed

$ barman server list main-9.1 main-9.1 20111020T000532 - Thu Oct 20 00:05:37 2011 - Size: 32.0 MiB - WAL Size: 48.0 MiB main-9.1 20111019T235921 - Wed Oct 19 23:59:24 2011 - Size: 17.0 MiB - WAL Size: 80.0 MiB

$

barman server recover main-9.1 20111019T235921 /tmp/sandbox-pgdata

Starting restore for server main-9.1 using backup 20111019T235921 Destination directory: /tmp/sandbox-pgdata Copying the base backup. Copying required wal segments. Generating recovery.conf Restore done Copyright © 2011, 2ndQuadrant Limited

www.2ndQuadrant.com

Just to whet your appetite $ barman backup show main-9.1 20111020T000532 Backup 20111020T000532: Server Name

: main-9.1

PostgreSQL Version: 90101 PGDATA directory

: /var/lib/9.1/master-node/data

Base backup information: Disk usage

: 48.0 MiB

Timeline

: 1

… End XLOG

: 0/70000A0

WAL information: No of files

: 3

Disk usage

: 48.0 MiB

Last available

: 00000001000000000000000A

Catalog information: Previous Backup : 20111019T235921 Next Backup

Copyright © 2011, 2ndQuadrant Limited

: - (this is the latest base backup)

www.2ndQuadrant.com

Stay tuned • www.pgbarman.org • We are looking for sponsors of new features such as remote recovery, base backups archival, Amazon S3 support, cascading backup and time machine • Contact us at [email protected] • Thanks to the rest of the development team: – Marco Nenciarini, Carlo Ascani and Giulio Calacoci

Copyright © 2011, 2ndQuadrant Limited

www.2ndQuadrant.com