16.4. Cache Entry Expiration Notifications

JBoss Data Grid does not guarantee that an eviction occurs immediately upon timeout. Instead, a number of mechanisms are used in collaboration to ensure efficient eviction. An expired entry is removed from the cache when either:
  • A user thread requests an entry and discovers that the entry has expired.
  • An entry is passivated/overflowed to disk and is discovered to have expired.
  • The eviction maintenance thread discovers that an entry it has found is expired.
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