opentelemetry-ext-js VS opentelemetry-specification

AWS has good tools for tracing, but in this example, I will use another remote and distributed tracing platform – Aspecto.

For this article, I will be using Aspecto to visualize my traces. You can follow along by quickly creating a free account.

If we drill down into one of these traces, we can see in more detail how long each request took and clear visualization of the entire workflow.

For the purposes of this guide, I chose to use Aspecto as my visualization tool. This is because Aspecto provides built-in support for visualizing messaging systems like Kafka (and, of course, any other part of our microservice architectures).

To follow along, you can open a new free-forever Aspecto account or log in to your existing one.

That’s about it for this OpenTelemetry Java guide, folks. If you have any questions or issues with any of these steps, feel free to reach out to us via chat or join our OpenTelemetry Slack channel (part of the CNCF Slack).

At Aspecto, you can sign up for free and use our generous free-forever plan (no limited features).

Aspecto has a free-forever tier and provides everything included in Jaeger and more. Sort of like Jaeger on steroids.

However, you can take your tracing visualization to the next level with Aspecto. Try it yourself with the free-forever plan that has no limited features.

Hi all, we wanted to share some love back to the Kafka community. We hope you'd find this instrumentation helpful, check it out on GitHub 🌟and npm

You can read a more in-depth and updated status on OpenTelemetry status. A more detailed status of each SDK can be found on OpenTelemetry - Compliance of implementation with the specification.

OpenTelemetry is an open-source collection of tools, APIs, and SDKs that aims to standardize the way we generate and collect telemetry data. It follows a specification-driven development. The OpenTelemetry specification has design and implementation guidelines for how the instrumentation libraries should be implemented. In addition, it provides client libraries in all the major programming languages which follow the specification.

The OpenTelemetry specification defines a Propagators interface to allow any implementation to establish its own propagation convention, such as W3C TraceContext.

very cool - made me consider the contrasts with token-bucket rate limiting for log collection and stumbled across a interesting discussion https://github.com/open-telemetry/opentelemetry-specificatio...

If you encounter issues with logs not being ingested or exported, double-check your configuration and consult the OpenTelemetry Discussions forum for help and insights from the community.

Well actually. They (python SDK maintainers) argue their implementation is the correct one according to the spec. See this issue thread for example.

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

There are more. This is a symptom of a how hard it is to dive into Otel due to its surface area being so big.

It means that the OpenTelemetry project provides not only a specification to define the contract between the applications, collectors, and telemetry databases, but also a set of APIs, SDKs, and tools like instrumentation libraries (for different languages), collectors, operators, etc. OpenTelemetry is open-source and vendor-agnostic, so the project is not tied to any specific vendor or cloud provider.

Sure, happy to provide more specifics!

Our main issue was the lack of a synchronous gauge. The officially supported asynchronous API of registering a callback function to report a gauge metric is very different from how we were doing things before, and would have required lots of refactoring of our code. Instead, we wrote a wrapper that exposes a synchronous-like API: https://gist.github.com/yolken-airplane/027867b753840f7d15d6....

It seems like this is a common feature request across many of the SDKs, and it's in the process of being fixed in some of them (https://github.com/open-telemetry/opentelemetry-specificatio...)? I'm not sure what the plans are for the golang SDK specifically.

Another, more minor issue, is the lack of support for "constant" attributes that are applied to all metrics. We use these to identify the app, among other use cases, so we added wrappers around the various "Add", "Record", "Observe", etc. calls that automatically add these. (It's totally possible that this is supported and I missed it, in which case please let me know!).

Overall, the SDK was generally well-written and well-documented, we just needed some extra work to make the interfaces more similar to the ones were were using before.

OpenTelemetry is an open-source collection of tools, APIs, and SDKs that aims to standardize the way we generate and collect telemetry data. It follows a specification-driven development. The OpenTelemetry specification  has design and implementation guidelines for how the instrumentation libraries should be implemented. In addition, it provides client libraries in all the major programming languages that follow the specification.

Two problems with OpenTelemetry:

1. It doesn't know what the hell it is. Is it a semantic standard? Is a protocol? It is a facade? What layer of abstraction does it provide? Answer: All of the above! All the things! All the layers!

2. No one from OpenTelemetry has actually tried instrumenting a library. And if they have, they haven't the first suggestion on how instrumenters should actually use metrics, traces, and logs. Do you write to all three? To one? I asked this question two years ago, not a single response. [1]

[1] https://github.com/open-telemetry/opentelemetry-specificatio...