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https://issues.apache.org/jira/browse/LUCENE-1313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Rutherglen updated LUCENE-1313:
-------------------------------------
Attachment: LUCENE-1313.patch
I went back to trying to utilize a RAM dir inside of IW. This
actually works well now, and the code is less intrusive than the
previous patches. The incoming directory is placed in a
PrefixSwitchDirectory which accepts indicating whether a segment
is destined for the ram directory or the primary directory.
A single internal segment infos collection is used, the first
half are primary dir segments, the second, ram dir segments.
The above mentioned changes of course break many unit tests. I'm
going through and evaluating what do on a case by case basis,
and am open to suggestions.
> Near Realtime Search (using a built in RAMDirectory)
> ----------------------------------------------------
>
> Key: LUCENE-1313
> URL: https://issues.apache.org/jira/browse/LUCENE-1313
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Index
> Affects Versions: 2.4.1
> Reporter: Jason Rutherglen
> Priority: Minor
> Fix For: 3.1
>
> Attachments: LUCENE-1313.jar, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch, LUCENE-1313.patch,
> LUCENE-1313.patch, LUCENE-1313.patch, lucene-1313.patch, lucene-1313.patch,
> lucene-1313.patch, lucene-1313.patch
>
>
> Enable near realtime search in Lucene without external
> dependencies. When RAM NRT is enabled, the implementation adds a
> RAMDirectory to IndexWriter. Flushes go to the ramdir unless
> there is no available space. Merges are completed in the ram
> dir until there is no more available ram.
> IW.optimize and IW.commit flush the ramdir to the primary
> directory, all other operations try to keep segments in ram
> until there is no more space.
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