https://opentelemetry.io/
https://github.com/open-telemetry

https://opentelemetry.io/docs/

https://opentelemetry.io/docs/instrumentation/
https://opentelemetry.io/docs/instrumentation/java/getting-started/

2025
JavaPro - How I Solved Production Issues with OpenTelemetry (And How You Can Too) | Cees Bos (EN) 0:00 of 46:52
    https://www.youtube.com/watch?v=DlO0yYwQbvE
https://habr.com/ru/companies/postgrespro/articles/883632/
2024
https://tproger.ru/articles/chto-takoe-opentelemetry-i-kak-ona-mozhet-uluchwit-kachestvo-vawih-servisov
YoungParker - Learning OpenTelemetry
    97F8184BCB83534B962730DDF0E43420
    A83C1270C8B66CE620D6B1DF95CA4752
    C95D4D30D9424B96A472D4997831B7D2
    D0990CFE6FF65D8D63B9B72407F37E91
2022
https://apisix.hashnode.dev/end-to-end-tracing-opentelemetry
https://dev.to/apisix/end-to-end-tracing-with-opentelemetry-a17
    https://github.com/nfrankel/opentelemetry-tracing
2021
https://habr.com/ru/companies/ru_mts/articles/537892/