Proposal: https://docs.google.com/document/d/1s4_6VgAS7qAVp6iEm5KYvpiGw3h2Ja5T5HpKo29iv00/view

This replaces the previous attempt: #3500.

Work tracked in the project https://github.com/orgs/jaegertracing/projects/3

Roadmap

Proof of concept

• A single binary with memory storage and all-in-one functionality
  • Add jaeger-v2 single binary based on OTEL collector #4766
• Validate that the current storage configuration works for primary / archive storage.
• Default configuration solution (do not require config file for all-in-one)
  • feat(jaeger-v2): Create default config for all-in-one #4842
• Demonstrate Kafka exporter / receiver (ideally from OTEL), compatible with existing Jaeger Kafka writer
  • [Jaeger v2] Add Kafka exporter and receiver #4868
• Define v2 storage API that operates on OTLP batches, see if internal & remote APIs can be identical
  • Define internal version of OTLP proto types using Gogo optimizations #5052
  • [Feature]: Define v2 storage API that operates on OTLP batches #5079
• Benchmarks [Jaeger v2] Run benchmarks #4869

Feature parity

• Extend configuration of jaeger_storage_exporter to support all existing backends -- project in Jaeger's LFX Mentorship - 2024 Term 01, March - May #5084
• Metrics & Traces -- project in Jaeger's LFX Mentorship - 2024 Term 01, March - May #5084
• What to do with admin port / services -- [jaeger-v2] Document changes to admin port / services documentation#750
• Adaptive sampling processor -- project in Jaeger's LFX Mentorship - 2024 Term 01, March - May #5084

Prepare for Beta

• Add to integration tests
• Add to release pipeline
• Documentation

Prepare for GA

• Helm chart [Feature]: Support Jaeger-v2 Helm Chart helm-charts#534
• Operator [Feature]: Support Jaeger-v2 Operator jaeger-operator#2411
• Clarify https://github.com/jaegertracing/jaeger#version-compatibility-guarantees

Enhancements

• SPM built-in
• Integrate with OTEL collector builder ocb
• Print active configuration (unresolved: Print OTEL configuration #5223), Auto Generation of Component Configuration from metadata.yaml  open-telemetry/opentelemetry-collector-contrib#27003