What is FULL GC in SAP?

Before understanding FULL GC you should get an overview of  how Java memory is organized and managed?

In SAP,  Java objects are allocated in heap memory  and SAP heap memory is divided into two parts:

1. Young Generation - All new objects are allocated here.
2. Old Generation - Objects which are no longer referenced will be moved from Young gen to Old gen

GC (garbage collection) is a process to freeup memory by cleaning up unreferenced objects in the heap.

Small GC - The garbage collection process that happens in Young generation.

Full GC - The process of freeing up memory in both young and old generation is termed as Full GC

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What's the reason for FULL GC?

Tags: SAP Java Full gc, small gc , concurrent gc, explicit gc, Java perfomance issues GCs, 
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