[[Distributed tracing, metrics, aur logs]]

[[Click House]]

[[PromQL]]

SigNoz is an open-source observability platform designed to help developers monitor, troubleshoot, and optimize the performance of their applications. It is a popular alternative to tools like Datadog or New Relic but with a focus on being open-source and providing full control over your monitoring setup.

SigNoz is an ==observability tool== that uses OpenTelemetry for collecting metrics, traces, and logs. You can:

• Monitor application performance.
• Create dashboards for insights.
• Customize alerts for specific metrics.

Observability is the ability to measure the internal state of a system by examining its external outputs.

Observability helps you answer:

• What is happening inside the system?
• Why is it happening?
• How can we prevent or fix it?

Observability vs. Monitoring:

• Monitoring focuses on collecting predefined metrics to check if the system is working as expected.
• Observability focuses on understanding why the system is behaving in a certain way by using all available data (metrics, logs, traces).

Pillars of Observability

Observability is built on three key data types, often referred to as the three pillars:

1. Metrics:

   • Numerical measurements representing the state or performance of the system.
   • Examples: CPU usage, memory usage, request rates, latency, error rates.
   • Tools: Prometheus, SigNoz, DataDog.

2. Logs:

   • Textual records of events in a system.
   • Provide detailed context for specific events or errors.
   • Example: “Error: Connection refused at 12:00 UTC”.
   • Tools: ELK Stack (Elasticsearch, Logstash, Kibana), Loki.

3. Traces:

   • Distributed tracing tracks the journey of a request as it flows through different services in the system.
   • Helps identify bottlenecks or failures in microservices.
   • Tools: Jaeger, OpenTelemetry, SigNoz