The Pivotal GemFire resource manager works
with your JVM's tenured garbage collector (GC) to control heap use and protect your member
from hangs and crashes due to memory overload.
How the Resource Manager Works
The resource manager prevents the cache from consuming too much memory by evicting old data. If the garbage collector is unable to keep up, the resource manager refuses additions to the cache until the collector has freed an adequate amount of memory.
Control Heap Use with the Resource Manager
Resource manager behavior is closely tied to the triggering of GC activities, the use of concurrent GCs in the JVM, and the number of parallel GC threads used for concurrency.