--- title: Injecting tracing the hot way | daily.dev description: An exploration of runtime tracing in Elixir/Erlang using BEAM fundamentals. The author introduces updates to Entrace, an Erlang tracing library, including a... canonical: https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Injecting tracing the hot way | daily.dev og:description: An exploration of runtime tracing in Elixir/Erlang using BEAM fundamentals. The author introduces updates to Entrace, an Erlang tracing library, including a... og:url: https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va og:image: https://api.daily.dev/og/posts/m3B5c77VA.png og:image:alt: Injecting tracing the hot way og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Injecting tracing the hot way **[Beam Bloggers Webring](https://daily.dev/sources/beambloggers)** · 4 min read · 5 upvotes · 0 comments ## Summary An exploration of runtime tracing in Elixir/Erlang using BEAM fundamentals. The author introduces updates to Entrace, an Erlang tracing library, including a mini single-module version you can paste into an iex console and a one-liner that downloads and hot-loads pre-compiled .beam files into a running system. A second library, entrace_opentelemetry, bridges Erlang's native tracing with OpenTelemetry spans, enabling runtime injection of distributed tracing into production apps without a redeploy — including conditional tracing based on argument values. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Discord Engineers Add Distributed Tracing to Elixir's Actor Model Without Performance Penalty](https://daily.dev/posts/discord-engineers-add-distributed-tracing-to-elixir-s-actor-model-without-performance-penalty-lb8hcyxrr) · InfoQ · 1 upvotes · 0 comments - [WeaveScope Docs](https://daily.dev/posts/weavescope-docs-udhhpdksc) · ElixirStatus · 0 upvotes · 0 comments - [How to Use OpenTelemetry, PromEx, and Promtail to Build an Observability System with OpenObserver Exporter in Elixir](https://daily.dev/posts/how-to-use-opentelemetry-promex-and-promtail-to-build-an-observability-system-with-openobserver-ex-djzeqirqg) · Elixir Forum · 1 upvotes · 0 comments --- Tags: [#observability](https://daily.dev/tags/observability), [#elixir](https://daily.dev/tags/elixir), [#opentelemetry](https://daily.dev/tags/opentelemetry), [#erlang](https://daily.dev/tags/erlang) [View this post on daily.dev](https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Injecting tracing the hot way","url":"https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va"},"datePublished":"2026-03-25T23:30:15.600Z","dateModified":"2026-03-25T23:34:23.740Z","description":"An exploration of runtime tracing in Elixir/Erlang using BEAM fundamentals. The author introduces updates to Entrace, an Erlang tracing library, including a...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ca7acf8d4e699dac1b26e94fba1f318f?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ca7acf8d4e699dac1b26e94fba1f318f?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Beam Bloggers Webring","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Beam Bloggers Webring","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/e1c9c007266d44759881a7591ba181f2","url":"https://daily.dev/sources/beambloggers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/injecting-tracing-the-hot-way-m3b5c77va","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":5},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"observability,elixir,opentelemetry,erlang","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Beam Bloggers Webring","item":"https://daily.dev/sources/beambloggers"},{"@type":"ListItem","position":3,"name":"Injecting tracing the hot way"}]} ```