FusionReactor
Smarter observability for developers, with deep Java and ColdFusion monitoring
About FusionReactor
FusionReactor is an application performance monitoring and observability platform from Intergral, best known for its deep monitoring of Java, Adobe ColdFusion, and Lucee applications. It combines a low-overhead APM agent with production debugging, continuous profiling, and JDBC query monitoring, plus an OpenTelemetry-based cloud for metrics, logs, and traces with the OpsPilot AI assistant for root-cause analysis.
Pros & Cons
Pros
- Deepest ColdFusion and Lucee monitoring on the market, including CFML code-level insights
- Production-safe debugger lets you inspect live servers without restarting them
- Low agent overhead (under 1% per the vendor) and setup in minutes
- Much cheaper entry pricing than Datadog or New Relic, with unlimited free users
- OpenTelemetry support covers non-Java stacks such as Node.js, Python, .NET, and Go
- Support team is consistently rated as responsive and knowledgeable on G2
Cons
- Broad feature set can feel overwhelming to new users
- Advanced features need tuning to avoid missing insights or over-collecting data
- Cloud views drop metrics and transactions once a container is destroyed, which complicates ephemeral container setups
- Branding is in transition: the cloud and AI features are increasingly sold under the OpsPilot name, and trials sign up through OpsPilot
Key Features
Java and ColdFusion APM
Tracks transactions, memory, threads, and CFML code-level performance for Java, Adobe ColdFusion, and Lucee applications with under 1% overhead.
Production debugger
Set breakpoints, step through code, and inspect variables on live production servers without stopping the application.
Continuous profiling
Always-on code profiling, CPU sampling, and memory analysis to find bottlenecks and leaks in real time.
Database monitoring
Captures JDBC queries and flags slow SQL and database transactions as they happen.
OpenTelemetry cloud
Ingests metrics, logs, and traces from Java, Node.js, Python, .NET, Go, Ruby, and Kubernetes workloads through OpenTelemetry.
OpsPilot AI assistant
AI-powered root-cause analysis that correlates metrics, logs, and traces and explains what happened; cloud plans include a monthly token allowance.
Anomaly detection and alerting
Detects unusual behavior against learned baselines and sends alerts before issues reach users.
Grafana-based dashboards
Custom real-time dashboards built on the Grafana LGTM stack (Loki, Tempo, Mimir, Prometheus), with unlimited free users.
Log management
Centralized log collection and search alongside traces and metrics in the cloud platform.
Pricing
- Java and ColdFusion monitoring
- 1 seat covers 1 host with up to 4 app instances or Docker containers
- On-premise or cloud deployment
- 10K metrics
- 25GB logs + 25GB traces
- 500 OpsPilot AI tokens
- On-demand usage beyond included data
- 20K metrics
- 100GB logs / traces
- 5,000 OpsPilot AI tokens
- On-demand usage beyond included data
- 50K metrics
- 250GB logs / traces
- 20,000 OpsPilot AI tokens
- On-demand usage beyond included data
- Contact sales for larger data volumes and reservations
Best For
ColdFusion application monitoring
CF shops running Adobe ColdFusion or Lucee use FusionReactor to track requests, memory, and slow queries at the CFML code level.
Live production debugging
Developers attach the debugger to a running Java server to reproduce and fix bugs that only appear in production.
JVM performance tuning
Teams use continuous profiling and memory analysis to find CPU hot spots, thread contention, and memory leaks.
Cost-conscious observability
Small and mid-size teams get metrics, logs, traces, and AI-assisted root-cause analysis at a lower price than mainstream APM vendors.
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