If your company’s software engineers are veterans with PostgreSQL, chances are pretty good they are also familiar with the utilities, Barman and repmgr. Barman handles the management of the backup and recovery process for a Postgres instance. While repmgr, as hinted at by its name, performs a similar role with replication – in fact repmgr also offers a measure of integration with Barman.
Let’s take a closer look at both tools to see if they make sense as part of your PostgreSQL implementation. If your team is considering Postgres as a cheaper alternative to Oracle, perhaps this additional information helps make your decision easier. Good luck!
Barman – the PostgreSQL Choice for Disaster Recovery
Developed by the well-known purveyor of Postgres support, training, and development, 2ndQuadrant, Barman is a worthy open source option for organizations needing a tool to handle backups and restores for PostgreSQL. It also plays an important role in any company’s disaster recovery process. Barman helps ensure databases are back online as quickly as possible – a vital factor in achieving business continuity.
In fact, Barman focuses its functionality on disaster recovery scenarios. It supports the remote and hot backups of multiple database servers, while helping DBAs or other network personnel get everything up and running again. The tool also provides remote management capabilities for multiple servers, including ssh support.
Other features include the local storage of metadata, PITR (Point-In-Time-Recovery), file compression, retention policies, incremental backups, tar integration, and more. In short, Barman is a fully functional backup and recovery solution for Postgres. Since it is written in Python, companies with developers skilled in that language can make modifications as needed.
Version 2.1 of Barman was released earlier this year. 2ndQuadrant also provides documentation as well as commercial support and consulting options. As an open source software product, a robust online community is available for advice on usage. Any company using PostgreSQL needs to explore Barman as an option for database backup and disaster recovery.
Manage PostgreSQL Replication with repmgr
Another open source Postgres utility developed by 2ndQuadrant, repmgr handles database replication across multiple PostgreSQL servers. The latest version of repmgr – 3.3.1 – was released in March of 2017, supporting Postgres versions 9.3 and later. It leverages streaming replication and the PostgreSQL 9 Hot Standby feature to ensure superior performance in high scalability and availability environments as well as ease of administration.
One of the unsurprising features of repmgr, considering the developer, is its seamless integration with Barman. You are able to make clones from a Barman archive, instead of accessing a live server. This helps prevent a performance hit on a production server. If live streaming replication gets interrupted, an archive can be easily used in a pinch.
As with Barman, 2ndQuadrant also provides commercial-level support and consulting options with repmgr. When used together, both tools make it easier for companies to build an industry-leading relational database solution at a fraction of the cost of going with Oracle. It is yet another example of the benefits of open source software.
Stay tuned to the Betica Blog for additional news and insights from the wide world of software development. As always, thanks for reading!