Mohammad Abu Sayem | Software Architect in Dhaka
Engineering Principle
8 min read
Jan 2024

Observability by Default

Turning production Black Boxes into transparent, predictable systems.

Sayem - Observability by Default in Software Architecture

The Problem

"We don't build systems to work; we build systems to be understood when they fail."
Most engineering teams treat monitoring as an Afterthought, leading to systems that are Black Boxes. When a production incident occurs, developers are left guessing based on incomplete logs. This lack of transparency leads to high MTTR, finger-pointing between teams, and a total loss of confidence in the system's stability.

The Philosophy

Observability is not just about Checking if the server is up. My philosophy is rooted in The Three Pillars: Metrics, Logging, and Distributed Tracing. I believe that Production is the only environment that matters, and therefore, the code is not Done until it can explain its own behavior to the engineering team through telemetry.

Implementation Strategy

I enforce Observability-Driven Development by integrating OpenTelemetry at the architectural core. We define SLIs (Service Level Indicators) and SLOs (Service Level Objectives) for every critical path. Every request is assigned a unique Correlation ID that travels from the Load Balancer to the Database, allowing us to visualize the entire request lifecycle in a single trace.
Technical Pivot

Distributed Context Injection

Implementing a standardized middleware layer that injects Trace Contexts and Correlation IDs across every service boundary automatically.

If it isn't monitored, it doesn't exist. I treat telemetry, logging, and tracing as first-class citizens, ensuring that production behavior is transparent and failures are predictable.

Dogmatic Anti-Patterns

Log-Only Debugging
Gaps in Distributed Traces
Silenced or Meaningless Alerts
Unstandardized Log Schemas
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