What can FusionReactor (the Jvisual alternative) do that Java VisualVM can’t? This article compares both tools; which will work best for your use cases? … Read More
Blog Posts
AppDynamics vs FusionReactor
FusionReactor customers go live in less than a day and get payback within a month. See why customers prefer FusionReactor to AppDynamics when comparing support, ROI, go-live time, and features … Read More
New dashboards to help you troubleshoot in a new holistic way
New dashboards to help you troubleshoot in a new holistic way FusionReactor is evolving from APM to an observability platform, this means that we will be offering new dashboards to help you troubleshoot in a new holistic way with support … Read More
Getting observability into a distributed system
Get observability into a distributed system FusionReactor is evolving from APM to an observability platform that allows you to get observability into a distributed system. This means that we will be offering a more holistic view of distributed services with … Read More
How to debug in production
How to debug in production Debugging in production has always been something that we try our best to avoid, with multiple QA phases, staging environments, and automation to stop production bugs. Despite this, occasionally a bug will find its way … Read More
Understand how long ColdFusion requests are taking to execute
Using FusionReactor Cloud Transactions to understand how long ColdFusion requests are taking to execute In his recent blog, Ben Nadel explains how he is using the FusionReactor Cloud tracked transactions to understand how long ColdFusion requests were taking to execute. Ben explains … Read More
How to troubleshoot slow running requests in microservices
How to troubleshoot slow running requests in microservices we are running 3 microservices and for this use case, we have an issue with a long-running request. We will then take a look at FusionReactor and see how it picks … Read More
Troubleshooting high CPU usage in Java environments
How to troubleshoot high CPU usage In this scenario, our CPU is spinning at an abnormally high rate. We will then take a look at FusionReactor and see how it picks up this issue. For the test environment, we are … Read More
Using FusionReactor APM to identify deadlock conditions in your Java applications
How to identify deadlock conditions in Java In this use case, we will examine how to identify deadlock conditions in Java environments. We will then take a look at FusionReactor and see how it picks up this issue. For the … Read More
LogQL cheat sheet
LogQL Cheat Sheet This cheat sheet highlights different patterns for querying FusionReactor LogQL. Introducing FusionReactor Log query Language FusionReactor queries log with its unique log query language called LogQL, often distributed as grep besides labels for filtering. There are two … Read More
Parse Variable Patterns using Regex
What is parsing? Parsing is a very important process when handling logs because it lets users filter logs in useful ways. Unstructured logs can easily be shared into attribute (key/value) pairs, which helps to create improved alerts and charts. There … Read More
How to Parse JSON data in JavaScript
Assuming that you’ve used a web app before, there is a strong possibility that it uses JSON format to create a framework, store and transmit data between its servers and connected devices. JavaScript Object Notation, which is popularly known as … Read More
FusionReactor 8.7.7 Released
FusionReactor 8.7.7 has been released. With enhancements including improved alert emails, SpringBoot fixes, and more. Enhancements to Crash Protection API and DB time can now be found in both the request log and Crash Protection emails, making it easier to … Read More
New beta release – log alerting
Our most powerful alerting engine Log Alerting is now in beta and all beta users will immediately have access to this powerful query-based alerting engine. Set alerts on FusionReactor logs and ingested third-party logs. Your log data can be used … Read More
How to use Log Dashboards to gain actionable insight
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
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
Why monitor a monolithic server
Why monitor a monolithic server? It is quite challenging to improve the performance of a monolithic server application. Change is difficult when things are tightly coupled. Unlike microservices, where things are more likely to be managed by development teams. However, … Read More
OTel Tracing stability milestone reached
OTel Tracing stability milestone reached OTel Tracing stability milestone reached with OpenTelemetry Collector. As a result, OpenTelemetry Collector has released its first GA version. With version 0.36.0, the tracing components come with stability guarantees for tracing in the OpenTelemetry Protocol … Read More
APM – Whats new in Application Performance monitoring
What is an APM (Application Performance Monitor) Application Performance Monitors (APMs) help developers and DevOps professionals improve the performance of an application and identify errors and exceptions in the code. So, the APM identifies and diagnoses complex application performance problems … Read More
