Fluentd
Fluentd: Unified Logging Layer (project under CNCF) observed · 2026-10-14
Health v2 · maintenance only
94/100
- Activity 99
- Release rhythm 85
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 65.5
- age_days: 5602
- days_rel: 22
- days_push: 7
- n_releases_24m: 11
Adoption not part of the score
13606 stars · 1403 forks observed · 2026-10-14
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Fluentd is an open-source data collector that unifies log and event collection from many sources and routes them to files, databases, cloud services, and other backends. It is a CNCF graduated project with a pluggable architecture of 500+ community plugins, JSON-based data handling, and buffering for reliability.
Use cases
- collect and centralize logs from many servers
- ship container and Kubernetes logs to Elasticsearch or S3
- parse and transform application logs into structured JSON
- build a unified logging layer decoupled from backends
- forward logs between systems with buffering and failover
- tail log files and stream them to a data lake
When to choose
- you need a mature, plugin-rich log collector with many input/output integrations
- you want a CNCF-graduated, widely deployed logging layer for Kubernetes or hybrid infrastructure
- you need buffering, failover, and routing between heterogeneous log sources and sinks
When to avoid
- you need an extremely lightweight forwarder with minimal memory footprint (consider Fluent Bit)
- you want a pure high-performance pipeline without Ruby runtime overhead
- you need full observability beyond logs, such as metrics and traces (consider OpenTelemetry)
Facets
service · maturity stable
logging etl streaming plugin-system developer-tools monitoring self-hosted cloud-computing windows cross-platform self-hosted ruby log-collector unified-logging-layer cncf data-pipeline log-forwarding log-aggregation devops data-engineering linux macos docker kubernetes
5 sources
- readme: https://github.com/fluent/fluentd · fetched 2026-10-14 · 8f43318bbdb6
- homepage: https://www.fluentd.org · fetched 2026-08-29 · eddf731f45c2
- site_page: https://docs.fluentd.org/ · fetched 2026-08-29 · 8d47071205a2
- site_page: https://www.fluentd.org/faqs · fetched 2026-08-29 · 3567110f00a7
- site_page: https://www.fluentd.org/architecture · fetched 2026-08-29 · 2bd87cc5c4cf
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| fluent/fluentd | main | 94 |
| fluent/fluentd-kubernetes-daemonset | infra | 99 |
| fluent/fluentd-ui | frontend | 50 |
| fluent/fluentd-docker-image | infra | 99 |
| fluent/fluent-logger-python | sdk | 23 |
| fluent/fluent-plugin-s3 | plugin | 76 |
| fluent/fluent-logger-node | sdk | 32 |
| fluent/fluent-logger-ruby | sdk | 74 |
| fluent/fluent-logger-java | sdk | 32 |
| fluent/fluent-plugin-mongo | plugin | 76 |
| fluent/fluent-plugin-webhdfs | plugin | 76 |
| fluent/fluentd-docs | docs | 10 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem