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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-4498) Introduce lower limit for gc() maxRevisionAge
Date Thu, 16 Nov 2017 07:41:00 GMT

     [ https://issues.apache.org/jira/browse/OAK-4498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger updated OAK-4498:
----------------------------------
    Fix Version/s:     (was: 1.8)
                   1.10

> Introduce lower limit for gc() maxRevisionAge
> ---------------------------------------------
>
>                 Key: OAK-4498
>                 URL: https://issues.apache.org/jira/browse/OAK-4498
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: core, documentmk
>            Reporter: Marcel Reutegger
>            Assignee: Marcel Reutegger
>            Priority: Minor
>             Fix For: 1.10
>
>
> Introduce and enforce a lower limit for maxRevisionAge in VersionGarbageCollector.gc().
> OAK-4494 changes the way documents in a cache are considered up-to-date. In addition
to the modCount value it also considers the modified timestamp. To work properly, a new document
must have a modified timestamp that is different from a previous incarnation (i.e. before
gc removed it). The version GC should therefore not remove documents with a maxRevisionAge
less than the modified resolution (5 seconds).



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