How to use Log Dashboards to gain actionable insight Logs have many valuable functions; they contain a considerable amount of data. Using log query languages such as LogQL allows you to get fantastic insights, but they rely on running queries … Read More
Blog Posts

Diagnosing a server attack using logs
Diagnosing a server attack using logs Imagine that your server is under attack. How would you diagnose the issue and understand its impact? You may have been aware of previous attacks and have seen significant spikes coming into your server. … Read More

Using logs to easily diagnose a server crash
Reasons for a server crash Java can crash in several ways and for several reasons. Sometimes it’s not easy to diagnose a server crash. For example, Your JVM may still be operational, but you cannot process requests anymore. Part of your application breaks … Read More

Finding hidden exceptions in your application
What are hidden errors and why do you need to find them? Hidden exceptions can occur by design. For example, adding a try-catch block into your code is an easy way to prevent errors from displaying to your users and … Read More

What are logs and why do I need to monitor them?
What are logs, and why do I need to monitor them? Let’s start by clarifying the basics. Logs are recordings of events that have taken place while an application runs. Some are automatically created, and some are explicitly developed – … Read More

What is log alerting?
Log alerting Log alerting allows you to set rules based on any log that is ingested either by an external log agent or the FusionReactor agent. It is relatively simple to set up query-based alerts in LogQL. You can utilize … Read More

Using OpenTelemetry in Kubernetes
Using OTel auto-instrumentation/agents – OpenTelemetry in Kubernetes Maybe you heard about Opentelemetry, Kubernetes, or Opentelemetry in Kubernetes, and you don’t know what it is, or you want to learn more? This article will discuss how the OpenTelemetry (OTel) new collector … Read More

Understanding Metrics in OpenTelemetry (OTel) API
So you may have heard about the OpenTelemetry or OTel Metrics API. This article will explain the concept of metric, metric instruments and their functions, metric providers, and give you a practical example of implementing metric instruments. When we talk … Read More

Obfuscation added to log monitoring
Obfuscation in logs is now in beta Passwords, credit card information, and API keys are automatically obfuscated in logs sent from FR. However, should you have switched obfuscation in logs off in the UI, then you may need to manually … Read More
FusionReactor 8.x Release Notes
FusionReactor 8.x Release Notes … Read More