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Posted to oak-issues@jackrabbit.apache.org by "Julian Reschke (JIRA)" <ji...@apache.org> on 2014/11/04 14:30:34 UTC

[jira] [Created] (OAK-2252) VersionGCSupport for RDB persistence

Julian Reschke created OAK-2252:
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             Summary: VersionGCSupport for RDB persistence
                 Key: OAK-2252
                 URL: https://issues.apache.org/jira/browse/OAK-2252
             Project: Jackrabbit Oak
          Issue Type: Sub-task
          Components: rdbmk
    Affects Versions: 1.1.1
            Reporter: Julian Reschke
            Priority: Minor


The DocumentMK's VersionGCSupport code currently special-cases the Mongo persistence. 

Needed are two optimized queries:

1) deletedOnce = true AND modifiedInSecs < lastModified

2) sdType in (....) AND sdMaxRevTimeInSecs < oldestRevTimeStamp

(where in the case of 2) the matching documents cam be removed right away)

TODO:

a) find out which of these system properties ought to be indexed properties

b) decide on whether we can implement this as generic interface extension of DocumentStore, or whether we add custom code for the RDBDocumentStore similary to what Mongo does

on b): I think we should aim for *removing* persistence-specific code from the kernel, so we probably should add extension interfaces for these.



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