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https://issues.apache.org/jira/browse/LUCENE-2430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthick Sankarachary updated LUCENE-2430:
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Attachment: LUCENE-2430.patch
> An Archiving Split Policy For Managing Past-Their-Prime Non-Searchable
> Documents
> --------------------------------------------------------------------------------
>
> Key: LUCENE-2430
> URL: https://issues.apache.org/jira/browse/LUCENE-2430
> Project: Lucene - Java
> Issue Type: New Feature
> Reporter: Karthick Sankarachary
> Attachments: LUCENE-2430.patch
>
>
> (Please note that the feature described in LUCENE-2425 is required reading
> for this issue.)
> The archiving split policy extends the rotating split policy by archiving
> sub-indices over-flowing from the split index. This allows for older
> documents in the index to be available outside the context of the split
> index, even if they are no longer visible therein.
> It does so by overriding the RotatingSplitPolicy#maybeExpungeOldestSplit
> method. In particular, it archives (i.e., makes a copy of) the last sub-index
> (about to be expunged), just before the rotating policy actually expunges it.
> Just like the rotating split policy constrains the number of sub-indices, the
> archiving split policy too puts a limit on the number of sub-archives (i.e.
> sub-indices that have been archived and expunged) that the split index will
> maintain at any given point in time.
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