Blog

8 min

A Deep Dive into OpenTelemetry

A Critical Review for Platform Teams

Yena Oh

GTM

Dec 18, 2024

Monitoring distributed systems isn't easy. Every organization has its own mix of tools, like Prometheus for metrics, Jaeger for tracing, and a handful of logging solutions that different teams picked up over the years. OpenTelemetry offers a path through this complexity, not by adding another tool to the stack, but by bringing everything together in a way that actually makes sense.

The Journey to OpenTelemetry

The story of OpenTelemetry starts with the rise of microservices. Companies like Netflix and Twitter were breaking new ground, but they hit a wall when it came to monitoring. Traditional tools just weren't built for systems where a single user request might touch hundreds of services at once. Early solutions were messy. They only worked with specific languages, didn't play well together, and often locked teams into particular vendors.

That's where OpenTracing came in, trying to create some common ground. Meanwhile, Google's OpenCensus project was tackling similar problems from a different angle. When these projects merged into OpenTelemetry, something clicked. Finally, there was a unified way to handle all three pieces of the puzzle: traces, metrics, and logs.

What Makes OpenTelemetry Different

OpenTelemetry isn't just another monitoring solution. Teams use it as a practical way to collect and manage all their telemetry data without getting locked into any particular vendor's way of doing things. It turns out that having a shared, open standard makes a big difference.

Making Sense of Telemetry Data

Telemetry data is really just a window into how systems are behaving, broken down into three concepts:

  • Traces follow a request's journey through the system. When something's slow or broken, traces show exactly where things went wrong and how it got there.

  • Metrics tell you how the system's doing right now. They track things like how many requests are coming in, how much memory is being used, or how many orders are being processed.

  • Logs capture the details of what's actually happening. When something goes wrong, logs help piece together the story of why.

Real Problems OpenTelemetry Solves

Most organizations run a mix of different languages, frameworks, and cloud services. Before OpenTelemetry, this meant juggling different monitoring setups for each piece. Teams would spend hours configuring agents and exporters, only to do it all again when they added something new. OpenTelemetry changes this so that teams can use the same approach across their entire stack, while still having the flexibility to do things their own way when needed.

The monitoring world moves fast. New tools and vendors pop up all the time, but switching to something new usually means redoing all your instrumentation work. OpenTelemetry breaks this cycle. The work put into instrumenting services stays valuable even if an organization decides to try a different monitoring vendor.

As systems grow, running multiple monitoring agents starts to take its toll. More agents mean more resources used and more things that can go wrong. OpenTelemetry's approach is simpler - one efficient agent that can handle everything.

Different teams often end up doing things differently when there's no standard way to handle monitoring. This makes it harder to piece together what's happening when problems cross team boundaries. OpenTelemetry gives everyone a common language for monitoring, making it easier for teams to work together when things go wrong.

The Strategic Side of OpenTelemetry

While the technical benefits are clear, OpenTelemetry's real value shows up in ways that matter to the whole organization. And as one of the CNCF’s most popular projects with over 5,000 stars on Github, we know it’s not going anywhere, so teams can build on it trusting their work won’t be wasted a year from now.

Building for the Future

The monitoring world keeps changing, but OpenTelemetry provides stable ground to build on. Teams can focus on getting value from their monitoring data instead of constantly updating their instrumentation code every time a vendor makes a change.

Breaking Free from Vendor Lock-in

Monitoring vendors all have their strengths, but being stuck with one because changing would be too painful isn't ideal. OpenTelemetry changes this dynamic; organizations can switch providers or use multiple solutions without having to redo all their instrumentation work. This flexibility helps teams pick the right tools for their needs and budget.

Making Operations Smoother

Having one way to collect all monitoring data makes everyone's life easier. Development teams spend less time fighting with monitoring setups and more time building features. When everyone uses the same approach to monitoring, it's easier to understand what's happening across the whole system.

Making OpenTelemetry Work in Practice

Getting OpenTelemetry up and running successfully takes some planning, but it doesn't have to be overwhelming. Here's what tends to work well:

Getting the Basics Right

Start with the foundation:

  • Set up OpenTelemetry Collectors where they make sense for the environment

  • Agree on how to name things and configure basic settings

  • Connect to whatever monitoring systems the team already uses

  • Create some initial dashboards that show what matters most

Starting Small but Smart

Pick the right place to start:

  • Choose a service that matters but isn't critical

  • Add complete monitoring - traces, metrics, and logs

  • Keep track of what works and what doesn't

  • Watch how it affects both the service and the team using it

Growing Gradually

As more teams start using OpenTelemetry:

  • Use what was learned from the first services

  • Write down what works (and what doesn't)

  • Check that new instrumentation follows team standards

  • Keep an eye on resource usage

Making It Easier with Tempest

While OpenTelemetry provides the foundational standard for observability, implementing it consistently across teams and services can still be a challenge. Tempest helps organizations bake OTel requirements into every project deployment, ensuring that all telemetry data collection and storage practices are consistent, centralized, and aligned with organizational standards.

With Tempest’s Private Apps, administrators can orchestrate and standardize how OpenTelemetry Collectors are deployed and configured. Organizations can create a Private App for OpenTelemetry using our Developer SDK (written in Go). They can then use that Private App in recipes, where they can define how Collectors should be deployed and configured. Any projects deployed using those recipes automatically leverages a consistent OTel configuration, defined by the recipe. As a result, teams benefit from a unified, centrally governed approach to telemetry that’s tailored to their specific needs, yet requiring no additional effort on a per-project basis.

Tempest’s Environment Variables, Secrets, and Configurations feature streamlines this process further by allowing admins to automatically set the environment variables required for OTel’s spec-compliant configuration in newly created repositories. This ensures that each project deployed with Tempest starts with a compliant, preconfigured telemetry setup from day one.

Looking Ahead

OpenTelemetry represents a real shift in how teams handle monitoring. It's not perfect, but it solves real problems that teams face every day. Organizations using OpenTelemetry find they can:

  • Keep monitoring costs under control

  • Make systems more reliable

  • Fix problems faster

  • Build monitoring that grows with their needs

The monitoring landscape will keep evolving, but OpenTelemetry provides a solid foundation to build on. For teams tired of juggling multiple monitoring solutions and dealing with vendor lock-in, it offers a practical path forward.

Interested in seeing how Tempest can change the way you implement OpenTelemetry in your organization? Book a demo to get a custom walkthrough or sign up for a free trial to see it for yourself.

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