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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-2216) Append-only index updates
Date Wed, 05 Aug 2009 14:47:14 GMT

     [ https://issues.apache.org/jira/browse/JCR-2216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger updated JCR-2216:
----------------------------------

    Attachment: JCR-2216.patch

OK, this one is now really against current trunk ;)

> Append-only index updates
> -------------------------
>
>                 Key: JCR-2216
>                 URL: https://issues.apache.org/jira/browse/JCR-2216
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>         Attachments: JCR-2216.patch, JCR-2216.patch, JCR-2216.patch, JCR-2216.patch
>
>
> Currently index updates modify some existing files. This is troublesome in scenarios
like a backup or when an index will be shared in a cluster (though this is not yet the case).
> Requirements are:
> - index segments need a custom (lucene) IndexDeletionPolicy to keep index commits for
a given time.
> - index segments are not only referenced by their name, but also with their generation
> - the segments file must now also record the generation of a segment. the file itself
must be generational itself.
> - purging of outdated index segment commits

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