Keep Calm & Open the Tools - Online Developers Meetup - April 2017
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The document describes a set of tools for the Jahia digital experience manager platform, designed to assist developers in all project phases by providing essential system and performance information. It includes features like JVM thread state analysis, application logs management, and cache statistics, aimed at troubleshooting and optimizing the platform's performance. Additionally, it outlines production environment security measures and future enhancements, such as custom tools integration and predefined scripts.
Keep Calm & Open the Tools - Online Developers Meetup - April 2017
- 1. Keep calm & open the Tools 1 Online Developers Meetup Keep calm & open the Tools
- 2. Keep calm & open the Tools 2 What are the Jahia “Tools” ? 1
- 3. Keep calm & open the Tools 3 1 The Tools The Tools provide all information required to understand the behavior of a Digital Experience Manager platform: • Operating System • Java Virtual machine • OSGi • Jackrabbit • Caches • Performance (I/Os, Threads, Memory)
- 4. Keep calm & open the Tools 4 1 The Tools • Special admin back-office : http://localhost:8080/tools • Accessed using a specific user • Meant to be used during all project phases: from development to production
- 5. Keep calm & open the Tools 5 1 The Tools Whether you face performance or data integrity issues, configuration problems or are developing and need a fast access to any data on the platform, the Tools have an answer for you!
- 6. Keep calm & open the Tools 6 Overview of the possibilities What is the Tools’ purpose ? 2
- 7. Keep calm & open the Tools 7 2 Operating system / Environment info • System Information Gives an overview of the environment variables and of the configuration of the platform. • System Benchmark Gives raw performance indicators to help you fine tune your configuration. • Export Support Information Bundles everything the Jahia Support teams needs to know about your environment inside a zip file.
- 8. Keep calm & open the Tools 8 2 Java Virtual Machine (JVM) • Thread State Information Thread dumps are the most important elements when troubleshooting performance issues. They show exactly what the platform was doing at a given time. • Memory Information Shows current memory usage and can generate a Heap Dump (full memory export for further analysis)
- 9. Keep calm & open the Tools 9 2 Application logs • Log4j administration Can increase or decrease the log level of a specific Java Class or Java Package without server restart. Modifications are not persisted after restarting the server.
- 10. Keep calm & open the Tools 10 2 OSGi • OSGi console Shows a detailed status about all deployed modules
- 11. Keep calm & open the Tools 11 2 Jackrabbit • JCR repository browser • JCR query tool • JCR query statistics • JCR console • JCR DataStore garbage collection • JCR version history management • JCR integrity tools • JCR external providers • JCR Indexes Shows all data stored inside Jackrabbit and gives access to querying and scripting against the JCR.
- 12. Keep calm & open the Tools 12 2 Caches • Cache management • Output cache statistics • Output cache • Output dependencies cache Shows statistics about the various caches (hit/miss ratio) and cache space usage in memory
- 13. Keep calm & open the Tools 13 2 Clustering • Cluster view Shows the list of servers connected to the cluster as well as the cluster state.
- 14. Keep calm & open the Tools 14 The Tools in a Production environment 3
- 15. Keep calm & open the Tools 15 3 Production environment • The Tools need to be blocked from outside a production environment (web server or load balancer configuration) • Default user and password needs to be changed (Can be done in jahia.properties. New encrypted password can be generated in the tools)
- 16. Keep calm & open the Tools 16 Your own tools Going further 4
- 17. Keep calm & open the Tools 17 4 Your own tools What you need : • A Jahia module having for parent : org.jahia.bundles • Make it an OSGI fragment of “tools” bundle • A JSP Example : https://github.com/Jahia/dx-examples/tree/master/example-tools
- 18. Keep calm & open the Tools 18 New features What’s next 5
- 19. Keep calm & open the Tools 19 5 What’s next • Add your own Tools page in the menu • Predefined Groovy scripts in the Groovy Console • Re-index JCR sub-tree • Listing of business rules (Drools)
- 20. Keep calm & open the Tools 20 THE END! THANKS FOR LISTENING