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[CCACHE-21] LRU and LU caches never evict entries that came in as a seed and are never accessed Created: 14/Mar/12  Updated: 14/Mar/12  Resolved: 14/Mar/12

Status: Resolved
Project: core.cache
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Defect Priority: Major
Reporter: Fogus Assignee: Fogus
Resolution: Completed Votes: 0
Labels: bug, cache, lru, lu


If one initializes an LRU or LU cache with seed data and those datum are never touched, then they are never evicted.

  (def C (lru-cache-factory {:a 1, :b 2} :limit 2))
  (-> C (assoc :c 3) (assoc :d 4) (assoc :e 5))

You would expect that the cache should contain only :d and :e, but it instead includes :a, :b, :d and :e! The problem is that seeds are never added to the eviction queue.

Comment by Fogus [ 14/Mar/12 8:15 AM ]

Fixed in 5751b7e8d8d2f10c87b8a79c8ed9b0324368514d

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