[jira] [Updated] (OAK-5058) Improve GC estimation strategy based on both absolute size and relative percentage

["Andrei Dulceanu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-5058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Dulceanu updated OAK-5058:
---------------------------------
    Summary: Improve GC estimation strategy based on both absolute size and relative percentage  (was: Improve GC running strategy based on both absolute size and relative percentage)

> Improve GC estimation strategy based on both absolute size and relative percentage
> ----------------------------------------------------------------------------------
>
>                 Key: OAK-5058
>                 URL: https://issues.apache.org/jira/browse/OAK-5058
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>    Affects Versions: 1.5.12
>            Reporter: Andrei Dulceanu
>            Assignee: Andrei Dulceanu
>            Priority: Minor
>             Fix For: 1.5.14
>
>
> A better way of deciding whether GC should run or not might be by looking at the numbers computed in {{SizeDeltaGcEstimation}} from both an absolute size and relative percentage point of view. For example it would make sense to  run compaction only if both criteria are met: "run if there is > 50% increase or more than 10GB".
> Since the absolute threshold is already implemented (see {{SegmentGCOptions.SIZE_DELTA_ESTIMATION_DEFAULT}}), it would be nice to add also something like {{SegmentGCOptions.SIZE_PERCENTAGE_ESTIMATION_DEFAULT}} and use it in taking the decision.



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