# bosun-monitor/bosun

Time Series Alerting Framework

Repository: https://github.com/bosun-monitor/bosun
Canonical: https://ross.abutalabs.com/products/bosun
Homepage: http://bosun.org
Language: Go
License: MIT
License Family: permissive
Topics: go, bosun, scollector, monitoring, alerting, tsdb
Archived: true
Last push: 2025-02-13T10:41:49+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 6, release rhythm 8, longevity 100
- inputs: {"age_days": 4675, "days_push": 566, "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 3390, forks 488 (observed 2026-08-28T04:07:59.039878+00:00)

## What it is
Bosun is an open-source time series alerting and monitoring framework developed by Stack Exchange, featuring a DSL for evaluating alerts and a template language for notifications. It queries OpenTSDB, Graphite, and Logstash-Elasticsearch, and pairs with the scollector metric collection agent.

## Use cases
- alert on time series metrics from opentsdb
- monitor server and application metrics
- test alerting rules against historical data
- collect metrics from windows and linux hosts
- create templated alert notifications with graphs

## When to choose
- you use OpenTSDB or Graphite and need expressive alert rules
- you want to backtest alerts against historical data before production

## When to avoid
- you need actively maintained software - the project is no longer maintained as of 2025
- you need a modern monitoring stack with broad datasource support

## Facets
- artifact type: application
- maturity: abandoned
- function: monitoring, alerting, data-visualization
- domain: monitoring, self-hosted
- platform: windows, go, self-hosted
- tags: time-series, tsdb, opentsdb, graphite, scollector, expression-language, stack-exchange, devops, linux, macos, docker

## Member repositories
- bosun-monitor/bosun (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:59.039878+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 2026-08-29T18:39:01.083458+00:00, confidence not recorded.
  - readme: https://github.com/bosun-monitor/bosun (fetched 2026-08-28T04:07:59.039878+00:00, sha 3dd5ae001769)
  - homepage: http://bosun.org (fetched 2026-08-29T09:33:04.949404+00:00, sha 02a44767f0c5)
  - site_page: https://bosun.org/quickstart (fetched 2026-08-29T09:33:04.954388+00:00, sha e76ea19bcbee)
- Data as of 2026-08-30T08:39:29.467469+00:00.