log4rs
tracing
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| log4rs | tracing | |
|---|---|---|
| - | 52 | |
| 942 | 4,919 | |
| - | 2.9% | |
| 7.2 | 8.1 | |
| 7 days ago | 8 days ago | |
| Rust | Rust | |
| Apache License 2.0 | MIT License |
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log4rs
We haven't tracked posts mentioning log4rs yet.
Tracking mentions began in Dec 2020.
tracing
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Decrusting the tracing crate [video] by Jon Gjengset
The video description is as follows:
In this stream, we peel back the crust on the tracing crate — https://github.com/tokio-rs/tracing/ — and explore its interface, structure, and mechanisms. We talk about spans, events, their attributes and fields, and how to think about them in async code. We also dig into what subscribers are, how they pick up events, and how you can construct your own subscribers through the layer abstraction. For more details about tracing, see https://docs.rs/tracing/latest/tracing/.
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Vendor lock-in is in the small details
> What's been your biggest issues around ergonomics/amenities for OpenTelemetry?
I can't speak generally, but in the Rust ecosystem the various crates don't play well together. Here's one example: <https://github.com/tokio-rs/tracing/issues/2648> There are four crates involved (tracing-attributes, tracing-opentelemetry, opentelemetry, and opentelemetry-datadog) and none of them fit properly into any of the others.
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Grimoire - A recipe management application.
The tracing (logging) mechanism in an asynchronous codebase (tracing).
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How easy is it to swap out your async runtime?
Tracing is Tokio's alternative for async code.
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Hey Rustaceans! Got a question? Ask here (27/2023)!
At a technical level, in Rust, both [tracing]https://crates.io/crates/tracing) and log are entire ecosystems (though for the latter at least there's also third party logging frameworks), and there's at least a bridge from log to tracing.
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How can I write a tracing subscriber that saves to a database?
I am using https://github.com/tokio-rs/tracing for logging purposes in my application. I would like to develop a feature wherein logs should be saved to a database table (via sea-orm). Something similar is this, but it does not solve my needs fully.
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A locking war story
I've used the tracing infrastructure with tracing_flame to profile some hot paths in async code: https://github.com/tokio-rs/tracing/tree/master/tracing-flame
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I was wrong about rust
Oh nice! IIRC when I checked, it was the Unicode tables that smashed the code size. I recently hit the same issue with the tracing crate, where a crate feature (for env var filtering) pulled in regex and my binary was suddenly 1MB bigger.
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Debugging and profiling embedded applications.
I know about tools such as tracing, jaeger or tracy. While having a complete tracing could be a potential solution, these tools don't work with no_std.
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Custom Axum Logging for Routes?
tracing by itself only outputs log data, you need to consume them in a subscriber, the tracing-subscriber crate exists for this. (example)
What are some alternatives?
slog - Structured, contextual, extensible, composable logging for Rust
log - Logging implementation for Rust
env_logger - A logging implementation for `log` which is configured via an environment variable.
sax-wasm - The first streamable, fixed memory XML, HTML, and JSX parser for WebAssembly.
xml-rs - An XML library in Rust
opentelemetry-rust - The Rust OpenTelemetry implementation
fast_xbrl_parser - An XBRL parser built in Rust that provides a fast, easy, and lightweight way to convert XBRL XML files into JSON or CSV.
vector - A high-performance observability data pipeline.
roxmltree - Represent an XML document as a read-only tree.
flamegraph - Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3