OpenTelemetry Protocol and Apache Arrow: Phase 2 in Rust

Phase 2 of the OpenTelemetry Protocol with Apache Arrow project (OTel-Arrow) is underway, focusing on building high-performance telemetry pipelines using Rust. This phase investigates a zero-copy, columnar approach from SDK to pipeline, aiming for significant efficiency gains for large telemetry streams. Integration with the existing OpenTelemetry Collector's Go ecosystem is a key goal, along with enhanced interoperability with data lake technologies like Apache DataFusion.