This page describes an older version of the product. The latest stable version is 16.2.1.

Memory Management

In this section we will explain the different Space cache policies, memory usage, and rules for exceeding physical memory capacity.

Overview over the different cache policies.

All in Cache
The ALL-In-Cache Cache policy.

LRU cache
The LRU Cache policy.

Off Heap Memeory Management
XAP provides a MemoryXtend based on MapDB, which can be used for reducing the JVM heap size and garbage collection, since the entries are stored off-heap.