AWS Distro for OpenTelemetry vs Fluent Bit

AWS Distro for OpenTelemetry (ADOT) collects logs, metrics, and traces, with options to send correlated telemetry to one or more observability backends. Applications can be instrumented once, and auto-instrumentation can generate traces without changes to application code. ADOT also gathers metadata from AWS resources and managed services to connect application performance data with infrastructure information. Documented destinations include Amazon Managed Service for Prometheus, Amazon CloudWatch, AWS X-Ray, Amazon OpenSearch, OTLP-compliant backends, and Amazon MSK. It supports workloads on AWS App Runner, Lambda, EC2, ECS, EKS on EC2, Fargate, and on-premises datacenters. Getting-started guides cover Go, Java, JavaScript, Python, Ruby, .NET, PHP, and Android. The project describes ADOT as backed by AWS Support, testing, and certification, and says it contributes changes and fixes to the OpenTelemetry community. ADOT is free and supports cloud and self-hosted deployment. The download page lists Collector version 0.50.0, released August 25, 2026, under the Apache-2.0 license.

Fluent Bit is a free, open-source telemetry agent for collecting and processing logs, metrics, and traces. It can run as an edge agent on constrained systems or as a central collector for cloud infrastructure, and is designed for high throughput with low resource consumption. Built-in parsers cover JSON, Regex, LTSV, and Logfmt; metrics compatibility includes Prometheus and OpenTelemetry. More than 100 built-in plugins cover inputs, filters, analytics, and outputs, with destinations including Splunk, Elasticsearch, OpenSearch, and Kafka. Buffering in memory or on the file system and backpressure handling support data flow, while network input and output plugins include TLS and SSL. Stream processing supports SQL queries, aggregation windows, forecasting, and data analysis. Users can write plugins in C, Lua, Golang, or WebAssembly. The Open-source Fluent Bit plan costs nothing, with self-hosted deployment under the Apache License 2.0. Official packages and installation guidance cover Linux, macOS, Windows, containers, and selected BSD and IBM Z Linux environments.