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From "Andrei Dulceanu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-5046) Remove the old estimation OSGi setting (compaction.gainThreshold)
Date Wed, 02 Nov 2016 10:44:58 GMT

     [ https://issues.apache.org/jira/browse/OAK-5046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrei Dulceanu updated OAK-5046:
---------------------------------
    Attachment: OAK-5046-01.patch

I removed the configuration from {{SegmentNodeStoreService}}, deprecated {{CompactionGainEstimate}}
and issued a deprecation warning in {{FileStore}} when falling back to the old implementation.

[~mduerig], could you take a look at the patch?

/cc [~alexparvulescu]

> 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
>              Labels: osgi-config
>             Fix For: 1.5.13
>
>         Attachments: OAK-5046-01.patch
>
>
> 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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