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Posted to notifications@asterixdb.apache.org by "Ian Maxon (Jira)" <ji...@apache.org> on 2023/11/20 01:36:00 UTC

[jira] [Created] (ASTERIXDB-3315) Exclude compression-related pins from metrics

Ian Maxon created ASTERIXDB-3315:
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             Summary: Exclude compression-related pins from metrics
                 Key: ASTERIXDB-3315
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-3315
             Project: Apache AsterixDB
          Issue Type: Bug
            Reporter: Ian Maxon
            Assignee: Ian Maxon


The compression uses the buffercache for the LAF and other things. These pins are counted in the buffercacheHitRatio metric. Including them leads to a misleadingly high ratio for the query because the LAF is hot and almost always entirely in cache. These should be excluded from this calculation. 



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