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From "Andrzej Bialecki (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-13641) Undocumented and untested "cleanupThread" functionality in LFUCache and FastLRUCache
Date Wed, 17 Jul 2019 11:23:00 GMT
Andrzej Bialecki  created SOLR-13641:
----------------------------------------

             Summary: Undocumented and untested "cleanupThread" functionality in LFUCache
and FastLRUCache
                 Key: SOLR-13641
                 URL: https://issues.apache.org/jira/browse/SOLR-13641
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Andrzej Bialecki 


Both LFUCache and FastLRUCache support a functionality for running evictions asynchronously,
in a thread different from the one that executes a {{put(K, V)}} operation.

Additionally, these asynchronous evictions can use either a one-off thread created after each
put, or a single long-running cleanup thread.

However, this functionality is not documented anywhere and it's not tested. It should either
be removed, if it's not used, or properly documented and tested.



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