v0.29.0

v0.29.0 Beta

🛑 Breaking changes 🛑

• Rename service.Application to service.Collector (#3268)
• Provide case sensitivity in config yaml mappings by using Koanf instead of Viper (#3337)
• Move zipkin constants to an internal package (#3431)
• Disallow renaming metrics using metric relabel configs (#3410)
• Move cgroup and iruntime utils from memory_limiter to internal folder (#3448)
• Move model pdata interfaces to pdata, expose them publicly (#3455)

💡 Enhancements 💡

• Change obsreport helpers for scraper to use the same pattern as Processor/Exporter (#3327)
• Convert otlptext to implement Marshaler interfaces (#3366)
• Add encoder/decoder and marshaler/unmarshaler for OTLP protobuf (#3401)
• Use the new marshaler/unmarshaler in kafka exporter (#3403)
• Convert zipkinv2 to to/from translator interfaces (#3409)
• zipkinv1: Move to translator and encoders interfaces (#3419)
• Use the new marshaler/unmarshaler in kafka receiver #3402
• Change oltp receiver to use the new unmarshaler, avoid grpc-gateway dependency (#3406)
• Use the new Marshaler in the otlphttp exporter (#3433)
• Add grpc response struct for all signals instead of returning interface in otlp receiver/exporter (#3437)
• zipkinv2: Add encoders, decoders, marshalers (#3426)
• scrapererror receiver: Return concrete error type (#3360)
• kafka receiver: Add metrics support (#3452)
• prometheus receiver:
  • Add store to track stale metrics (#3414)
  • Add up and scrape_xxxx internal metrics (#3116)

🧰 Bug fixes 🧰

• prometheus receiver:
  • Reject datapoints with duplicate label keys (#3408)
  • Scrapers are not stopped when receiver is shutdown (#3450)
• prometheusremotewrite exporter: Adjust default retry settings (#3416)
• hostmetrics receiver: Fix missing startTimestamp for processes scraper (#3461)