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Posted to issues@trafficserver.apache.org by "Leif Hedstrom (JIRA)" <ji...@apache.org> on 2016/12/13 19:06:58 UTC

[jira] [Created] (TS-5090) Cache hit ratio deteriorating over time with CLFUS

Leif Hedstrom created TS-5090:
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             Summary: Cache hit ratio deteriorating over time with CLFUS
                 Key: TS-5090
                 URL: https://issues.apache.org/jira/browse/TS-5090
             Project: Traffic Server
          Issue Type: Bug
          Components: Cache
            Reporter: Leif Hedstrom


We've observed poor cache hit ratio with the CLFUS, where it starts doing great, but over ~1 day, the cache hit ratio deteriorates. It's to the point where the LRU + seen-filter=1 is 2-3x better. In addition, the RAM cache hit ratio on the LRU stays consistent over time.

At first, I thought it was only our particular use case, but it seems others have confirmed the same behavior.




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