Fluentd
CNCF-graduated log collector that unifies data collection from many sources into a single, structured logging layer.
- Actively maintained
- Foundation-backed
- Well documented
- Permissive license
Overview
Fluentd collects logs from a huge range of sources - application logs, system logs, cloud services - and routes them, in a unified structured format, to one or more destinations like Elasticsearch, object storage, or a log-analytics backend. Its plugin ecosystem covers most common inputs and outputs without custom glue code.
Fluentd is a fit for teams that need a dedicated log-collection and forwarding layer in front of a storage or analytics backend, complementing Grafana Loki (also in this catalog), which handles log storage and querying rather than the collection layer itself.
Why it's in this catalog
Catalog rating: ★★★☆☆ (3/5)
Widely used log collector/forwarder; monitoring is already the largest category, but this is a standard pick.
- Foundational
- Foundation-governed
- Categories
- Monitoring
- Languages
- Ruby
- License
- Apache-2.0
Related Projects
Grafana Loki
AGPL-3.0Horizontally scalable log aggregation system, designed by the Grafana team to pair with Prometheus-style metrics using the same labels.
Actively maintained
- Monitoring
Jaeger
Apache-2.0CNCF distributed tracing platform for visualizing request flows across microservices, pinpointing exactly which service or call is responsible for latency or errors.
Actively maintained
- Monitoring
OpenTelemetry Collector
Apache-2.0Vendor-neutral pipeline for collecting, processing, and exporting traces, metrics, and logs from applications to any observability backend.
Actively maintained
- Monitoring
Prometheus
Apache-2.0Open source systems monitoring and alerting toolkit with a dimensional data model and powerful query language.
Actively maintained
- Monitoring
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