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Virtualizing and Tuning Large-Scale Java Platforms by Emad Benjamin

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Chapter 6. Best Practices

In this chapter we will present the various best practices for category 1, category 2 and category 3 type of Java platforms. The category definitions described earlier are presented here briefly for reader convenience:

Category 1 – large number of JVMs category: In this first category there are commonly 100s-1000s of JVMs deployed on the Java platform, and these are typically JVMs as part of a system that maybe servicing millions of users. I have seen some customers with as many as 15000 JVMs. Whenever you are dealing with thousands of JVM instances, you have to consider the manageability cost and if there are opportunities to consolidate the JVM instances.

Category 2 – JVMs with large heap size: In this category ...

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