Fluentd vs Tenzir

Fluentd is a free, open-source data collector for creating a unified logging layer. It uses JSON to handle log collection, filtering, buffering, and output across sources and destinations. More than 500 community plugins connect it to data sources and outputs, including Elasticsearch and Kibana, Splunk, AWS S3, Kafka, BigQuery, Datadog, and OpenTelemetry. It supports memory and file buffering, failover, and high availability to help prevent data loss between nodes. The project reports that a vanilla instance uses 30–40 MB of memory and can process 13,000 events per second per core. Fluentd v1 runs on Linux, Mac OSX, and Windows; community distributions also include Docker images, a Kubernetes DaemonSet, and Ruby gems. It is self-hosted, and its components are available under the Apache 2 License. The project lists community help and commercial support from companies offering enterprise services. The homepage notes vulnerabilities patched in Fluentd v1.19.3 and advises updating fluent-package to v6.0.4.

Tenzir is a data pipeline engine for security teams collecting, transforming, enriching, and routing telemetry. Its stages cover collection, parsing, shaping, normalization, optimization, protection, enrichment, analysis, detection, storage, search, routing, and replay. Vendor fields can be mapped to OCSF, ASIM, ECS, CIM, UDM, or a custom schema. Pipelines may drop unqueried data and deduplicate repeated events to reduce storage and analyst noise. Protect supports encryption, pseudonymization, anonymization, masking, salted hashes, redaction, and field dropping. The integrations directory lists 173 integrations, including Amazon S3, Amazon Security Lake, Amazon SQS, Azure Blob Storage, Azure Event Hubs, and ArcSight. Nodes run in the customer environment; Community and Enterprise platforms are hosted by Tenzir in AWS in Europe. Sovereign supports self-hosting and fully air-gapped deployments. Community costs nothing.