Ten Great Reasons to Virtualize Your Java Apps
summary
Explains actionable reasons to virtualize Java on vSphere: a new vCenter plugin (EM4J console) shows per-VM JVM Xmx/committed history so ops can right‑size VMs; EM4J ballooning uses zeroed large byte arrays to let the hypervisor reclaim heap memory safely (vSphere-only hooks) and avoid paging; test results quantify latency vs. overcommit and working‑set size; automation via the vSphere APIs and deployment tools (App Director, Serengeti, Cloud Foundry) and Spring Insight demos show how to provision, monitor and troubleshoot real JVM problems like Java6 vs Java7 large‑page behavior.
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chapters (10)
- 0:00Introduction and setup
- 1:15Why virtualize Java apps
- 8:37VMware’s Java support in vSphere
- 29:31Elastic Memory for Java
- 49:11Automation and testing
- 55:07Java 6 vs Java 7 memory issue
- 1:01:05Provisioning simplicity
- 1:05:58Integration and frameworks
- 1:08:06VSphere value-add for Java
- 1:11:18Summary and Q&A
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