The OpenTelemetry Project announced the next phase of the OpenTelemetry Protocol with Apache Arrow project (OTel-Arrow).
The goal of the project is to build a bridge between OpenTelemetry data and the Apache Arrow ecosystem. Apache Arrow is a framework designed for zero-copy exchange of structured data between column-oriented data producers and consumers.
A blog on the OpenTelemetry states, "We believe that having OpenTelemetry data accessible to external systems through Apache Arrow will lead to powerful integrations, with the potential for new telemetry systems and applications to emerge. For large streams of telemetry, we know that column-oriented data handling is substantially more efficient, with improved data compression and performance."
In the next phase of the project, contributors will study the potential for Rust-based OpenTelemetry pipelines without "being" a Collector. They will investigate both the performance of Rust pipelines as well as how to successfully integrate their work with the OpenTelemetry Collector’s Golang-based ecosystem.
In the first phase of the project, they developed the protocol through a Golang adapter library and a matching pair of Exporter and Receiver components in the OpenTelemetry Collector Contrib repository. They will continue to maintain these components, ensuring there are no barriers between Go and Rust pipelines, and we will continue this commitment. They will ensure that OTAP pipelines can be executed from the OpenTelemetry Collector. They want to give OTAP pipelines written in Rust access to Golang Collector components, too.
To kick off phase 2 of the project, Laurent Quérel at F5 has contributed the work behind his original OTel-Arrow prototype, a Rust-based pipeline framework modeled on the OpenTelemetry Collector. Lei Huang at Greptime has contributed a Rust implementation for converting the metrics signal from OTAP to OTLP.
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