Local caches and backing maps use the <expiry-delay> and <flush-delay> cache configuration elements to configure the amount of time that items may remain in the cache before they expire and the amount of time until expired items are removed from the cache, respectively. Client threads initiate these actions while accessing the cache. This means that the <expiry-delay> and <flush-delay> time may be reached, but not initiated until a client thread accesses the cache. For example, if the <expiry-delay> value is set at 10 seconds (10s) and a client accesses the cache after 15 seconds, then expiry occurs after 15 seconds.

Note The client thread performs the evictions, not a background thread.