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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-7158) Users shouldn't be able to change the number of retained generations
Date Wed, 26 Jun 2019 08:45:00 GMT

    [ https://issues.apache.org/jira/browse/OAK-7158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16873099#comment-16873099
] 

Julian Reschke commented on OAK-7158:
-------------------------------------

trunk: (1.9.0) [r1821240|http://svn.apache.org/r1821240]
1.10: (1.9.0) [r1821240|http://svn.apache.org/r1821240]
1.8: (1.8.1) [r1821244|http://svn.apache.org/r1821244]

> Users shouldn't be able to change the number of retained generations
> --------------------------------------------------------------------
>
>                 Key: OAK-7158
>                 URL: https://issues.apache.org/jira/browse/OAK-7158
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: segment-tar
>            Reporter: Francesco Mari
>            Assignee: Francesco Mari
>            Priority: Major
>              Labels: candidate_oak_1_8
>             Fix For: 1.9.0, 1.10.0, 1.8.1
>
>         Attachments: OAK-7158-01.diff, OAK-7158-02.diff, OAK-7158-03.diff
>
>
> Currently, {{SegmentGCOptions}} implements a validation check on the number of retained
generations that prevents callers to set it to a value smaller than two. Instead, some subsystems
might benefit from having a number of retained generations smaller than two - see OAK-7157
as an example.
> The check performed by {{SegmentGCOptions}} should be moved to {{SegmentNodeStoreService}}
to prevent users from setting the number of retained generations to a an invalid value. Internal
subsystems should be allowed to set the number of retained generations to a lower value, if
needed.



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