Hadoop Virtualization with VMware
summary
VMware virtualizes Hadoop while claiming near bare‑metal performance after extensive benchmarking and a contributed patch called HP Hadoop virtual extensions accepted into Apache Hadoop 1.2 and included in major distributions; the extension preserves data locality so compute tasks run proximate to physical data, reducing latency. Tests target 10–220 node test/dev clusters but argue virtualization shines when scaling to hundreds or thousands of nodes by improving management, resource utilization, and long‑term operational efficiency.
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