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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Resolved] (OAK-2946) Sampling rate feature CompactionGainEstimate is not efficient
Date Tue, 02 Jun 2015 08:25:18 GMT

     [ https://issues.apache.org/jira/browse/OAK-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Michael Dürig resolved OAK-2946.
    Resolution: Duplicate

Duplicate of OAK-2945 due to an anxious extra click provoked by deadly slow JIRA.

> Sampling rate feature CompactionGainEstimate is not efficient
> -------------------------------------------------------------
>                 Key: OAK-2946
>                 URL: https://issues.apache.org/jira/browse/OAK-2946
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: segmentmk
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: compaction, gc
>             Fix For: 1.3.0, 1.0.15
> The sampling rate feature introduced with OAK-2595 is not efficient. It only prevents
uuids from being stored in the bloom filter while the visited set is not affected and thus
keeps growing. 
> I will remove the feature again for now. We should look for a better solution once this
becomes a problem. Will follow up on OAK-2939 re. this. 

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