Question 1

How do I view Sysmon metrics in jconsole?

Accepted Answer

Sysmon publishes metrics via JMX, so you can connect jconsole to the JVM process running Sysmon. Once connected, navigate to the MBeans tab to access collected host performance data like CPU and disk usage, leveraging standard Java management tools.

Question 2

Can Sysmon monitor Docker containers?

Accepted Answer

Sysmon focuses on host-level metrics, so it monitors the physical or virtual machine, not individual containers. For container-specific monitoring, you'd need additional tools or modifications, as it doesn't natively support cgroup or container data.

Question 3

Is Sysmon suitable for Windows servers?

Accepted Answer

No, Sysmon is currently implemented only for Linux, as stated in the README. While designed for easy porting to Unix-like platforms, Windows support would require significant development effort and is not available out-of-the-box.

Question 4

How does Sysmon compare to Nagios for Java monitoring?

Accepted Answer

Sysmon is lightweight and integrated directly into the JVM via JMX, ideal for embedding in applications. Nagios is a full-fledged monitoring system with alerting and dashboards, but heavier and less Java-specific; Sysmon complements it by providing detailed host metrics for Java services.

Question 5

What metrics does Sysmon collect exactly?

Accepted Answer

Sysmon gathers CPU usage, disk I/O and space, network traffic, and other system performance data from the host machine. These metrics are packaged and exposed through JMX MBeans, as detailed in the key features.

Question 6

How to deploy Sysmon as a standalone daemon?

Accepted Answer

You can run Sysmon as a standalone daemon by executing its main class with appropriate JVM arguments, typically from the JAR file. The project Wiki likely provides configuration examples, but it involves setting up startup scripts and ensuring the JVM runs continuously.

Question 7

Does Sysmon support alerting or notifications?

Accepted Answer

No, Sysmon does not include built-in alerting. It only collects and exposes metrics via JMX, so you need to use external tools like jmxtrans or custom scripts to set up alerts based on the data, which adds complexity to the monitoring setup.

Sysmon

What is Sysmon?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions