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Observability refers to the ability to infer the state of a system based on its outputs. It is a concept derived from control theory, focusing on understanding internal states based on external data.
In the context of IT systems, observability involves collecting and analyzing logs, metrics, and traces to gain insights into applications. These data points allow engineers to diagnose issues and understand system behavior.
Achieving observability means implementing a system that offers deep visibility into application performance and operational health. Comprehensive observability platforms aim to provide a complete view of an organization’s security profile, enabling teams to discover unknown issues.
Monitoring is the regular observation and recording of activities taking place in a system or process. It involves collecting data such as resource utilization, application performance, and security alerts. Monitoring helps teams track the system’s health and performance metrics, like CPU usage, memory consumption, and response times.
Monitoring tools often set predefined thresholds for these metrics. When these thresholds are breached, alerts are generated to notify the concerned teams. This reactive approach is important for identifying and addressing immediate problems, ensuring that the system remains functional and any downtime is minimized.
Observability and monitoring share the goal of ensuring that systems operate reliably and efficiently. Both practices involve collecting data that helps IT teams understand the system’s current state and address issues quickly. They require tooling for data collection, storage, and analysis, including dashboards and alerting mechanisms to make data accessible and actionable.
Additionally, both practices aim to enhance the overall user experience by maintaining system performance and reliability. By systematically capturing data and alerting on various conditions, teams can address security and other issues before they affect the end-user, reducing downtime.
Product lead with over 10 YOE working on consumer products, B2B platforms and developer tools with a proven track record of shipping and scaling successful SaaS products and mobile apps. Strong engineering background in Mobile, Cloud, Distributed Systems, API design and DevOps.
In my experience, here are tips that can help you better leverage the principles of observability and monitoring:
Here’s a look at how these two related concepts differ in several key areas.
Observability has a broader scope than monitoring. While monitoring looks at specific metrics and predefined parameters, observability aims for a wider understanding, enabling the discovery of unknown issues through data analysis. This allows for better diagnostic capabilities and root cause analysis.
Monitoring is often limited to tracking known issues and performance indicators. It provides immediate, actionable insights within a well-defined context but may not capture complex interactions or hidden problems within the system.
Observability relies on extensive data collection from various sources, including logs, metrics, and distributed traces. This provides a full spectrum of insights into the system’s state, capturing everything from high-level metrics to fine-grained event logs. It enables deep querying and analysis.
Monitoring typically focuses on metrics such as CPU usage, memory, and network traffic. These metrics are collected at regular intervals to detect anomalies. While logs and traces can be part of monitoring solutions, they are not usually integrated as comprehensively as in observability practices.
Observability emphasizes a proactive approach. It enables teams to anticipate issues before they become significant problems. By analyzing trends and patterns in data, engineers can identify potential issues early and address them during regular maintenance rather than during emergency downtimes.
Monitoring tends to be more reactive. It alerts teams after an anomaly or failure has been detected. While essential for immediate troubleshooting, the reactive nature means some issues may only be addressed after they have impacted the system’s performance or availability.
Observability is especially useful for managing complex security and performance issues. Given its data collection and analysis capabilities, it provides insights into how different components interact within a distributed system. This understanding helps in identifying bottlenecks and optimizing performance.
Monitoring solutions manage complexity by establishing well-defined metrics and alert thresholds. They provide a simple way to track system health but may struggle with intricate, interconnected dependencies. Thus, while effective for simpler environments, monitoring may fall short in handling highly complex, distributed systems.
Observability can improve response times to detected issues. By offering a more in-depth view of the system, it enables rapid root cause analysis and resolution. Teams are better equipped to handle incidents efficiently, reducing mean time to repair (MTTR).
Monitoring ensures quick response to predefined issues by generating alerts as soon as anomalies are detected. However, the time to resolve issues may be longer due to the reactive nature and limited diagnostic insights provided by monitoring tools. The focus is on timely detection rather than immediate in-depth analysis.
Related content: Read our guide to observability tools (coming soon)
Here are some key considerations to help guide an organization’s choice:
In reality, most organizations require both monitoring and observability. Combining the strengths of each approach helps create a more effective system management strategy.
Monitoring provides immediate, actionable insights and alerts for known issues, ensuring that the system remains functional and responsive to common problems. Observability offers a deeper understanding of the system, allowing teams to diagnose complex issues, predict potential failures, and optimize performance.
By integrating both practices, organizations can achieve a balance between reactive and proactive management, improving system resilience, reducing downtime, and ensuring a high-quality user experience.
Coralogix sets itself apart in observability with its modern architecture, enabling real-time insights into logs, metrics, and traces with built-in cost optimization. Coralogix’s straightforward pricing covers all its platform offerings including APM, RUM, SIEM, infrastructure monitoring and much more. With unparalleled support that features less than 1 minute response times and 1 hour resolution times, Coralogix is a leading choice for thousands of organizations across the globe.