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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1313) Near Realtime Search (using a built in RAMDirectory)
Date Fri, 16 Oct 2009 02:12:31 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12766376#action_12766376
] 

Jason Rutherglen commented on LUCENE-1313:
------------------------------------------

I think this patch has a memory leak, I'm trying to get a copy of an open source Yourkit license
for profiling the heap usage.  The code is unfortunately quite large so whatever it is, is
probably easy to fix and hard to find.

> 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
>
>
> 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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