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Comparison · DevOps
pgBackRest vs Prometheus
A side-by-side editorial comparison of pgBackRest and Prometheus — release velocity, themes, recent moves, and the top alternatives to consider.
pgBackRest vs Prometheus: at a glance
What is pgBackRest?
pgBackRest 2.60 now stops a restore when a page checksum is bad
pgBackRest 2.60.0, released October 18, changes a default: restore now errors and stops if a restored file has an invalid page checksum, leaving the cluster unable to start until the restore is rerun, and expire refuses to proceed if the oldest retained backup would contain checksum errors. Setting checksum-page-error=n returns to warnings. The release also adds GCS Workload Identity Federation and prefetch for object-store reads. Two weeks earlier 2.59.3 fixed a bug that could generate weak encryption subkeys and salts when system random data failed.
What is Prometheus?
Prometheus 3.16 turns query cost into a setting while its smoothed selectors go stable
Prometheus is working toward 3.16, with rc.2 dated 27 October. The candidate makes Smoothed and Anchored vector selectors stable and always-on, adds experimental query cost estimation with configurable execution limits behind --enable-feature=query-cost, and brings metadata-wal-records to Agent mode. The patch tracks are moving separately: 3.15.1 and 3.13.5 both distrust two root CAs after the eMudhra key compromise and rebuild on patched Go releases.
pgBackRest vs Prometheus: editorial side-by-side
pgBackRest
5.0DEVOPS
pgBackRest 2.60 now stops a restore when a page checksum is bad
◆ Current state
pgBackRest 2.60.0, released October 18, changes a default: restore now errors and stops if a restored file has an invalid page checksum, leaving the cluster unable to start until the restore is rerun, and expire refuses to proceed if the oldest retained backup would contain checksum errors. Setting checksum-page-error=n returns to warnings. The release also adds GCS Workload Identity Federation and prefetch for object-store reads. Two weeks earlier 2.59.3 fixed a bug that could generate weak encryption subkeys and salts when system random data failed.
◆ Where it's heading
The project is moving from reporting corruption to refusing to continue past it, a stricter stance that fits the root restriction in 2.59.0. Cloud identity continues too, with GCS joining the Azure and S3 work. Underneath, the code generation, documentation tools and test harness have moved from C and Perl to Python, and a documented release schedule and new website show the project formalizing how it runs.
◆ Prediction
Patches tracking PostgreSQL 19 should continue, as 2.59.2 did with 19beta4. Now that restore can fail on checksums, expect follow-up fixes or guidance for clusters where existing backups contain them.
Prometheus
5.0DEVOPS
Prometheus 3.16 turns query cost into a setting while its smoothed selectors go stable
◆ Current state
Prometheus is working toward 3.16, with rc.2 dated 27 October. The candidate makes Smoothed and Anchored vector selectors stable and always-on, adds experimental query cost estimation with configurable execution limits behind --enable-feature=query-cost, and brings metadata-wal-records to Agent mode. The patch tracks are moving separately: 3.15.1 and 3.13.5 both distrust two root CAs after the eMudhra key compromise and rebuild on patched Go releases.
◆ Where it's heading
The 3.16 notes spend most of their length on correctness and cost rather than new surface: TSDB out-of-order sample loss, exemplar handling in OTLP and OpenMetrics 2.0, and a long list of parser and memory reductions. Query cost limits are the one addition aimed at operators of shared servers, since a limit on execution is a control that sample counts alone never gave them. Start-timestamp handling also keeps widening, now with a per-query header and counter-reset detection on anchored and smoothed selectors, though it stays behind its feature flag.
◆ Prediction
A 3.16.0 final is the next move, given this candidate has reached rc.2. Query cost and start-timestamp handling both remain behind flags in these notes, so expect feedback on those before either becomes a default.
Alternatives to pgBackRest and Prometheus
Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either pgBackRest or Prometheus.
Rollbar
Rollbar now runs Resolve by itself: a new error can become a fix PR with no one starting it
Apache Kafka
Kafka 4.4 hardens share groups and Streams, then 4.3.2 patches two data-loss risks a day later
HashiCorp
Terraform 1.16 brings more of the infrastructure lifecycle back inside Terraform
Okta
Okta adds TypeScript to its Cross App Access guides and dates the end of Classic Engine features
Tines
Tines opens Records to AI clients and removes stored keys from its cloud credentials
See all pgBackRest alternatives → · See all Prometheus alternatives →
Recent activity from pgBackRest and Prometheus
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoPrometheus3.16.0-rc.2: query cost limits, smoothed selectors go stable
- 11d agoPrometheus3.15.1: distrusts two root CAs, patches Go and HTTP/2
- 11d agoPrometheus3.13.5: LTS gets the CA distrust and Go security rebuild
- 14d agopgBackRestv2.60.0: Page Checksum Errors and Object Store Prefetch
- 28d agopgBackRestv2.59.3: Weak Encryption Subkey Bug
- 1mo agoPrometheus3.13.4: gRPC fix, native histogram corrections on LTS
- 1mo agopgBackRestv2.59.2: PostgreSQL 19beta4 Support
- 1mo agoPrometheus3.13.3 / 2026-09-07
- 2mo agoPrometheus3.14.0 / 2026-08-17
- 2mo agopgBackRestv2.59.1: PostgreSQL 19beta3 Support
- 3mo agopgBackRestv2.59.0: PostgreSQL 19 Support
- 9mo agopgBackRestv2.58.0: Object Storage Improvements
Frequently asked questions
What is the difference between pgBackRest and Prometheus?
They serve adjacent needs but don't currently overlap on shipped themes. pgBackRest and Prometheus are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is pgBackRest better than Prometheus?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. pgBackRest and Prometheus are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to pgBackRest?
Top pgBackRest alternatives in DevOps are ranked by recent ship velocity. Browse the "pgBackRest alternatives" section above for the current picks, or visit /alternatives/pgbackrest for the full list with editorial commentary on each.
What are the best alternatives to Prometheus?
Top Prometheus alternatives in DevOps are ranked by recent ship velocity. Browse the "Prometheus alternatives" section above for the current picks, or visit /alternatives/prometheus for the full list with editorial commentary on each.