# grafana-cold-storage/phlare

🔥 horizontally-scalable, highly-available, multi-tenant continuous profiling aggregation system

Repository: https://github.com/grafana-cold-storage/phlare
Canonical: https://ross.abutalabs.com/products/phlare
Homepage: https://grafana.com/oss/phlare/
Language: Go
License: AGPL-3.0
License Family: copyleft
Topics: profiling, continuous-profiling, grafana, kubernetes, monitoring, performance, performance-monitoring, prometheus
Archived: true
Last push: 2023-07-19T13:24:54+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 1555, "days_push": 1141, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2023, forks 70 (observed 2026-08-28T04:06:06.510940+00:00)

## What it is
Grafana Phlare was a horizontally-scalable, highly-available, multi-tenant continuous profiling aggregation system written in Go, designed to store and query profiling data like Prometheus stores metrics. It was archived in 2023 after Grafana Labs acquired Pyroscope, and all development continues in Grafana Pyroscope.

## Use cases
- aggregate continuous profiling data at scale
- store and query production profiling data
- correlate profiling with metrics, logs, and traces in Grafana
- multi-tenant profiling backend for Kubernetes workloads
- find resource usage hotspots down to the source line
- self-hosted continuous profiling database

## When to choose
- you need a Prometheus-like, single-binary continuous profiling backend
- you want multi-tenant, horizontally scalable profiling storage integrated with Grafana

## When to avoid
- starting any new project - the repo is archived and merged into Grafana Pyroscope
- you need active maintenance, new features, or bug fixes
- you want the latest Pyroscope/Phlare merged feature set

## Facets
- artifact type: service
- maturity: abandoned
- function: monitoring, tracing, analytics
- domain: monitoring, performance, developer-tools
- platform: go, self-hosted, cloud
- tags: continuous-profiling, profiling-database, grafana, flamegraphs, multi-tenant, archived, pyroscope, linux, docker, kubernetes

## Member repositories
- grafana-cold-storage/phlare (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:06.510940+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:00:03.056182+00:00, confidence not recorded.
  - readme: https://github.com/grafana-cold-storage/phlare (fetched 2026-08-28T04:06:06.510940+00:00, sha 5a4b6620c210)
  - homepage: https://grafana.com/oss/phlare/ (fetched 2026-08-29T10:40:09.225974+00:00, sha 132c80a96837)
  - site_page: https://grafana.com/docs (fetched 2026-08-29T10:40:09.238215+00:00, sha 882a3fe34bf0)
  - site_page: https://grafana.com/docs/pyroscope/latest?pg=oss-pyroscope&plcmt=hero-btn-3 (fetched 2026-08-29T10:40:09.240234+00:00, sha 9d47b416d1e4)
  - site_page: https://grafana.com/docs/pyroscope/latest?pg=oss-pyroscope&plcmt=resources (fetched 2026-08-29T10:40:09.243598+00:00, sha 78eab1681d1b)
  - site_page: https://grafana.com/integrations (fetched 2026-08-29T10:40:09.245247+00:00, sha 3210cff6224b)
  - site_page: https://grafana.com/integrations/cloud-monitoring-aws (fetched 2026-08-29T10:40:09.246877+00:00, sha 51561815b31e)
  - site_page: https://grafana.com/integrations/cloud-monitoring-google-cloud (fetched 2026-08-29T10:40:09.248538+00:00, sha a3665a5d81bf)
  - site_page: https://grafana.com/pricing (fetched 2026-08-29T10:40:09.235319+00:00, sha 6097ce127c08)
- Data as of 2026-08-30T08:39:29.467469+00:00.