# psi-probe/psi-probe

Advanced manager and monitor for Apache Tomcat, forked from Lambda Probe

Repository: https://github.com/psi-probe/psi-probe
Canonical: https://ross.abutalabs.com/products/psi-probe
Language: Java
License: GPL-2.0
License Family: copyleft
Topics: psi-probe, java, tomcat
Last push: 2026-08-20T22:47:54+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 88, longevity 100
- inputs: {"age_days": 4188, "days_push": 13, "days_rel": 82, "gap_med": 1, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1330, forks 381 (observed 2026-08-28T04:04:24.190266+00:00)

## What it is
PSI Probe is an advanced web-based manager and monitor for Apache Tomcat, forked from Lambda Probe. It is deployed as a WAR file and provides visibility into Tomcat's applications, sessions, logs, threads, and resources.

## Use cases
- monitor tomcat server health and memory usage
- manage and redeploy web applications on tomcat
- view tomcat logs in a browser
- inspect active sessions and threads on tomcat
- check tomcat datasource and connection pool status

## When to choose
- you run Apache Tomcat and want a rich web UI for management and monitoring
- you need session, thread, and datasource introspection without extra infrastructure
- you want a drop-in WAR deployable admin tool

## When to avoid
- you use application servers other than Tomcat
- you need full-scale metrics dashboards with alerting and long-term storage
- you run Tomcat versions unsupported by the matching PSI Probe release series

## Facets
- artifact type: application
- maturity: active
- function: monitoring, logging, developer-tools
- domain: monitoring, backend, developer-tools
- platform: jvm, self-hosted
- tags: tomcat, war, application-server-management, jmx, webapp-manager, devops, web-server

## Member repositories
- psi-probe/psi-probe (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:24.190266+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 2026-08-30T04:45:32.944489+00:00, confidence not recorded.
  - readme: https://github.com/psi-probe/psi-probe (fetched 2026-08-28T04:04:24.190266+00:00, sha 1ceb6a914284)
- Data as of 2026-08-30T08:39:29.467469+00:00.