silx
silx settles into maintenance a release after its PySide6 migration
Comparison · Analytics
hubPredEvalsData vs OpenObserve
A side-by-side editorial comparison of hubPredEvalsData and OpenObserve — release velocity, themes, recent moves, and the top alternatives to consider.
hubPredEvalsData vs OpenObserve: at a glance
What is hubPredEvalsData?
The pipeline turning hub forecasts into dashboard-ready evaluation data.
hubPredEvalsData generates the scored evaluation data that hubverse prediction dashboards read, driven by a predevals-config.yml and scoring through hubEvals underneath. It is the youngest package in this part of the stack and the fastest-moving in configuration terms, having already passed a breaking 1.0.0 and a schema-versioned feature addition. Its output contract is a scores.csv file consumed downstream, which shapes what its releases care about.
What is OpenObserve?
After its largest release, OpenObserve is patching the seams.
v0.92.0 landed on 7 August with 836 commits and three new product surfaces - synthetic monitoring, Workflows v1, and an expanded AI observability set - after a long RC series. The two releases since are small: v0.92.1 fixed alert HAVING clause typing and put the MCP server setup page on the OSS build, and v0.92.2 adds a compactor delay setting and backports an MCP 404 fix for deployments running under a base URI. The 0.91 line is still receiving its own backports.
hubPredEvalsData vs OpenObserve: editorial side-by-side
hubPredEvalsData
0.0ANALYTICS
The pipeline turning hub forecasts into dashboard-ready evaluation data.
◆ Current state
hubPredEvalsData generates the scored evaluation data that hubverse prediction dashboards read, driven by a predevals-config.yml and scoring through hubEvals underneath. It is the youngest package in this part of the stack and the fastest-moving in configuration terms, having already passed a breaking 1.0.0 and a schema-versioned feature addition. Its output contract is a scores.csv file consumed downstream, which shapes what its releases care about.
◆ Where it's heading
Each release widens what the config file can express — round selection, then scale transformations with per-target overrides, then target labelling pulled from the hub's own task metadata. The pattern is consistent: capability that already exists in hubEvals gets a declarative surface here so hub maintainers configure it rather than write code. Recent attention to byte-stable output ordering shows the file is being treated as a reproducible artifact, not just a report.
◆ Prediction
Expect the config schema to keep absorbing hubEvals capabilities as declarative options, with continued attention to making scores.csv reproducible and diffable between runs.
OpenObserve
6.3ANALYTICS
After its largest release, OpenObserve is patching the seams.
◆ Current state
v0.92.0 landed on 7 August with 836 commits and three new product surfaces - synthetic monitoring, Workflows v1, and an expanded AI observability set - after a long RC series. The two releases since are small: v0.92.1 fixed alert HAVING clause typing and put the MCP server setup page on the OSS build, and v0.92.2 adds a compactor delay setting and backports an MCP 404 fix for deployments running under a base URI. The 0.91 line is still receiving its own backports.
◆ Where it's heading
OpenObserve is trying to become the whole monitoring stack rather than the storage layer under one. Synthetic checks, incident workflows, and SLO measurement each replace a separate tool, and incident ingestion from external alert sources hedges the migration path for teams that cannot switch all at once. The MCP work running alongside - open sourced, then given a setup page in the OSS build, then fixed for base-URI deployments - shows the same data being aimed at agent clients rather than dashboards.
◆ Prediction
The post-GA patches are still landing on the new surfaces, so expect another 0.92.x before feature work resumes - most likely hardening synthetic monitoring and Workflows, which are the two least-exercised additions.
Alternatives to hubPredEvalsData and OpenObserve
Other Analytics 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 hubPredEvalsData or OpenObserve.
Plotly
Plotly is turning its cloud into a metered compute platform with an enterprise on-ramp.
aniread
aniread stops asking you to know which tracker wrote the file
Rho
Rho's release machinery finally produced a stable build — and it shipped no new product.
Usermaven
Usermaven closed the loop: data comes in from anywhere, and now it goes back out.
OpenCTI
OpenCTI spends a release unblocking queues and hardening upserts
See all hubPredEvalsData alternatives → · See all OpenObserve alternatives →
Recent activity from hubPredEvalsData and OpenObserve
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoOpenObservev0.92.2: compactor delay setting and an MCP base-URI fix
- 5d agoOpenObservev0.92.1 brings the MCP server setup page to the OSS build
- 11d agoOpenObservev0.92.0 adds synthetic monitoring, workflows, and AI observability ⚡
- 12d agoOpenObserveRelease candidate 4 backports fixes before the v0.92.0 GA
- 14d agoOpenObserveRC3 adds agent-level filters and parallel zstd compression
- 20d agoOpenObservev0.91.5 patches an RBAC migration and a layout bug
- 1mo agohubPredEvalsDataTarget names pulled from hub metadata; scores.csv made byte-stable
- 2mo agohubPredEvalsDataVersioned target data with an as_of column no longer fails scoring
- 2mo agohubPredEvalsDataScale transformations become configurable per target
- 4mo agohubPredEvalsDataMulti-round hub support via a required rounds_idx property (breaking)
Frequently asked questions
What is the difference between hubPredEvalsData and OpenObserve?
They serve adjacent needs but don't currently overlap on shipped themes. OpenObserve is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is hubPredEvalsData better than OpenObserve?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. OpenObserve is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to hubPredEvalsData?
Top hubPredEvalsData alternatives in Analytics are ranked by recent ship velocity. Browse the "hubPredEvalsData alternatives" section above for the current picks, or visit /alternatives/hubpredevalsdata for the full list with editorial commentary on each.
What are the best alternatives to OpenObserve?
Top OpenObserve alternatives in Analytics are ranked by recent ship velocity. Browse the "OpenObserve alternatives" section above for the current picks, or visit /alternatives/openobserve for the full list with editorial commentary on each.