# 4 Pillars of Observability

> Join Prathamesh to discuss everything about key pillars of Observability.

Source: https://last9.io/events/4-pillars-of-observability/

Join [Prathamesh Sonpatki](https://www.linkedin.com/in/cha1tanya/) on LinkedIn Live as he revisits the "pillars of observability" — and argues the framing we picked up in 2017 is overdue for an update.

### What we'll cover

- **It's not Logs vs. Metrics vs. Traces** — it's logs and metrics and traces and **events**, and more. Why each one carries different information and why the "pick one" framing is wrong.
- **Why we do observability in the first place** — prevent downtime, communicate impact, debug fast, recover, do RCA. The four real stages of an incident, and which signal helps with each.
- **The four signals, signal by signal**
  - **Logs** — descriptive, easy to adopt, hard to standardize, explode in volume
  - **Metrics** — aggregated, dimensional, best for patterns and anomalies
  - **Traces** — directional, cross-component, OpenTelemetry is making them tractable
  - **Events** — structured, dimensional, the missing piece for correlation
- **What it takes to actually run this in production** — cardinality limits, flow control, streaming aggregation, data tiering, and the rest of the operational story behind a real telemetry platform.

Bring your questions. We'll wrap with live Q&A.