# opengoofy/hippo4j

📌 异步线程池框架，支持线程池动态变更&监控&报警，无需修改代码轻松引入。Asynchronous thread pool framework, support Thread Pool Dynamic Change & monitoring & Alarm, no need to modify the code easily introduced.

Repository: https://github.com/opengoofy/hippo4j
Canonical: https://ross.abutalabs.com/products/hippo4j
Homepage: https://hippo4j.github.io
Language: Java
License: Apache-2.0
License Family: permissive
Topics: java, thread-pool, dynamic, monitor, dynamic-threadpool, resizable, blocking-queue, springboot, rocketmq, kafka
Last push: 2026-03-12T14:44:23+00:00

## Health v2 (maintenance only)
Score: 55/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 71, release rhythm 8, longevity 100
- inputs: {"age_days": 1904, "days_push": 174, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6001, forks 1239 (observed 2026-08-28T04:09:34.154209+00:00)

## What it is
Hippo4j is a Java framework for managing, observing, and dynamically tuning thread pools at runtime without code changes. It provides a console for adjusting pool parameters, real-time monitoring, and alerting on pool health.

## Use cases
- dynamically resize thread pool parameters at runtime
- monitor thread pool activity and queue backlog
- alert when thread pool tasks are rejected or run too long
- manage thread pools across many services from one console
- propagate context like MDC across async tasks
- gracefully shut down thread pools on app exit

## When to choose
- you run Java/Spring Boot services with many thread pools and need runtime tuning
- you lack visibility into thread pool health and want alerting
- you need to change pool sizes without redeploying

## When to avoid
- you use non-JVM languages
- you only need a simple fixed thread pool with no observability
- you cannot run an extra server or config-center dependency

## Facets
- artifact type: library
- maturity: active
- function: monitoring, alerting, concurrency, configuration-management, middleware
- domain: backend, developer-tools, monitoring
- platform: jvm, self-hosted
- tags: thread-pool, dynamic-threadpool, java, spring-boot, observability, runtime-tuning, springboot

## Member repositories
- opengoofy/hippo4j (main) score 55

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:34.154209+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 2026-08-29T17:49:48.772847+00:00, confidence not recorded.
  - readme: https://github.com/opengoofy/hippo4j (fetched 2026-08-28T04:09:34.154209+00:00, sha e58158b68888)
  - homepage: https://hippo4j.github.io (fetched 2026-08-29T08:45:45.817501+00:00, sha 9c6921690cc9)
- Data as of 2026-08-30T08:39:29.467469+00:00.