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https://issues.apache.org/jira/browse/OAK-4943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15615248#comment-15615248
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Ian Boston commented on OAK-4943:
---------------------------------

FYI: I am working on a Sling WebConsole UI to provide detail on all commits, 
including age of each commit and functionality to analyse each commit, 
validate, rollback and download the commit.

> Keep Lucene Commits so that if the Segments file gets corrupted recovery can 
> be attempted.
> ------------------------------------------------------------------------------------------
>
>                 Key: OAK-4943
>                 URL: https://issues.apache.org/jira/browse/OAK-4943
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: lucene
>    Affects Versions: 1.6
>            Reporter: Ian Boston
>
> Currently, Lucene deletes all previous generations of the segments files as 
> it has it uses the default IndexDeletionPolicy. Changing this to an 
> IndexDeletionPolicy that keeps a number of previous segments files will allow 
> an operator to find the most recent valid commit when the current segments 
> file reports corruption. The patch found at 
> https://github.com/apache/jackrabbit-oak/compare/trunk...ieb:KeepLuceneCommits
>  keeps 10 previous commits.
> A more sophisticated policy could be used to save commits non-linearly over 
> time.



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