Welcome to the Wiki of collectd, the system statistics collection daemon.

Articles

• Introduction
  • First-steps with collectd
  • Networking-introduction
• Advanced topics
  • Inside-the-RRDtool-plugin
  • Notifications-and-thresholds
  • Chains: The filter mechanism
  • V4-to-v5-migration-guide
  • Core-files: How to debug crashes
  • Troubleshooting: Common pitfalls and their solutions

Current versions (→ See all)

• Version-5.12
• Version-5.11

Lists

• Table-of-Plugins
• Table-of-Matches
• Table-of-Targets
• List-of-manual-pages
• List-of-front-ends

The GenericJMX plugin reads Managed Beans (MBeans) from an MBeanServer using JMX. The plugin is written in Java and requires the Java plugin to function.

The Java Management Extensions (JMX) is a generic framework to provide and query various management information. The interface is used by the Java Virtual Machine (JVM) to provide information about the memory used, threads and so on. These basic performance values can therefore be collected for every Java process without any support in the Java process itself.

Advanced Java processes can use the JMX interface to provide performance information themselves. The Apache Tomcat application server, for example, provides information on the number of requests processed, the number of bytes sent, processing time, and thread counts.

Read more …

• Add features
• Community calls bi-weekly
• Improve documentation
• Add missing documents to the wiki
• Add example configs
• Extend existing pages
• Help out at exhibitions or give talks

Infrastructure

• Roadmap
• Repository
• Mailing-list
• :Category:No-Example-Graph
• Contribution-Appreciation-Program

Code / architecture documentation

• Plugin-architecture
• Build-system
• Naming-schema
• Coding-style
• Submitting-patches
• :Category:Development