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From "Andrei Dulceanu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OAK-5046) Remove the old estimation OSGi setting (compaction.gainThreshold)
Date Wed, 02 Nov 2016 10:19:58 GMT
Andrei Dulceanu created OAK-5046:

             Summary: Remove the old estimation OSGi setting (compaction.gainThreshold)
                 Key: OAK-5046
                 URL: https://issues.apache.org/jira/browse/OAK-5046
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: segment-tar
    Affects Versions: 1.5.12
            Reporter: Andrei Dulceanu
            Assignee: Andrei Dulceanu
            Priority: Minor
             Fix For: 1.5.13

Currently, there are two implementations for finding out the gain in repository size after
running compaction: the old one, {{CompactionGainEstimate}} and the new one, {{SizeDeltaGcEstimation}}.
Similarly, there are also two configurations for customising them, in {{SegmentNodeStoreService}},
{{compaction.gainThreshold}} and {{compaction.sizeDeltaEstimation}}.

At the moment both of them are exposed as OSGi configurations, but only the new one should
be exposed (e.g. {{compaction.sizeDeltaEstimation}}). 

It must be evaluated whether it makes sense to keep the logic associated with the old implementation.

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