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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2015/10/14 12:09:06 UTC

[jira] [Updated] (OAK-2946) Sampling rate feature CompactionGainEstimate is not efficient

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

Michael Dürig updated OAK-2946:
-------------------------------
    Issue Type: Improvement  (was: Sub-task)
        Parent:     (was: OAK-2849)

> Sampling rate feature CompactionGainEstimate is not efficient
> -------------------------------------------------------------
>
>                 Key: OAK-2946
>                 URL: https://issues.apache.org/jira/browse/OAK-2946
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          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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