Managing and monitoring a JVM
summary
Practical recipes for production JVMs: how CMS fragmentation and the maximum free contiguous space trigger pathological GC pauses, why finalizer leaks and expensive toString calls froze servers, and how a burst of 25 million exceptions revealed the root cause. Shows lightweight on-host techniques — log filtering, ad hoc scripts, CPU/allocation sampling and offline heap analysis — that map memory and CPU hotspots back to individual user actions and which ones are safe to run in production.
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chapters (7)
- 0:00Introduction to JVM monitoring
- 7:42Performance challenges in JVM
- 16:14Proactive monitoring tools
- 23:28Memory management essentials
- 33:05Debugging tools and techniques
- 40:01Multi-tenant JVM design
- 44:00Q&A and closing remarks
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