[infinispan-issues] [JBoss JIRA] (ISPN-11514) CacheMgmtInterceptor getNumberOfEntries should include expired entries

CacheMgmtInterceptor getNumberOfEntries should include expired entries ---------------------------------------------------------------------- Key: ISPN-11514 URL: https://issues.redhat.com/browse/ISPN-11514 Project: Infinispan Issue Type: Feature Request Components: API, Core Affects Versions: 11.0.0.Dev03 Reporter: Dan Berindei Assignee: Dan Berindei Priority: Major Fix For: 11.0.0.Final {{CacheMgmtInterceptor.getNumberOfEntries}} and {{CacheMgmtInterceptor.getNumberOfEntriesInMemory}} both require an iteration over the data container and/or stores in order to exclude expired entries. Since these are statistics, they don't have to be exact, so we can include expired entries until a read or the expiration reaper removes them from the cache. In fact, I would argue that it's more correct for {{CacheMgmtInterceptor.getNumberOfEntriesInMemory}} to include expired entries, because expired entries still use memory until they are removed. The most likely reason that the strategy for counting entries was changed with ISPN-7686 is that the {{AdvancedCache}} doesn't have a {{sizeIncludingExpired}} method. Since it's not possible to obtain the exact size of the cache with passivation enabled without iterating over the store to eliminate duplicates, I suggest instead to estimate {{CacheMgmtInterceptor.getNumberOfEntries}} as the number of entries in the data container + the number of entries in the store.