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Use Java Melody to see into Production JVM and DB Stat's

Java Melody is an open source and production ready JVM and DB Monitoring tool, use it in QA, Stage, or  Production environments and it's similar to most other profiler's. Just drop couple of jar files into your war and monitor your application in real time.

Alternatives to Java Melody

Memory

 
  Heap - helps you understand how much heap your application may need depending on the load and set -Xms and -Xmx appropriately



   Perm Gem, configure -XX:PermSize=128m correctly to avoid JVM Out of Memory Exceptions 



   

CPU - Understand how much CPU cycles your application used under different load so you can add more CPU's or Memory accordingly




1. Ehcache - 


Ability to see all created caches, their configuration, total objects in them, hits, and efficiency, this is really nice since you can monitor it in real time and keep tweaking until you achieve perfect configuration.


        
 
Monitor JDBC, JPA, Hibernate

SQL Hit Rate


SQL or Hibernate Query Performance - See all your SQL or Hibernate Queries perform, fine-tune or cache result if needed





Spring Bean - This is really awesome see which method needs tuning or caching (@Cacheable ) or Async (@Async) call





JSP, HTML, JavaScript, CSS file Stats - Decide which files need to be moved to CDN or Web Layer



Log4j - Monitor Error logs live





HTTP Session 







Find easy Installation Instructions 

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