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TIBCO GridServer® 7.1.0

# Cache Region Scope

Global cache regions exist until they are destroyed through the destroy method regardless of whether any client has a reference to that region. Unnecessary global cache regions impact eviction performance, so it is important to destroy global regions when they are no longer needed.

After all references to a cache region on a client go out of scope, local cache regions persist on clients until their keepalive timeout. At that point, the region is swept from the cache. Use the `close()` method to explicitly release a reference to a region. If you do not use the close method, garbage collection handles decrementing references to the region. However, garbage collection is never guaranteed so the keepalive timeout is not a guaranteed timeout. Using the close method is recommended.

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