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https://issues.apache.org/jira/browse/LUCENE-1313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715305#action_12715305
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Michael McCandless commented on LUCENE-1313:
--------------------------------------------
{quote}
The issue would only be the unit test for now, or should it be a
part of an existing issue?
{quote}
I meant the issue of FSDir sharing a single IndexInput if the same file is
opened more than once (you opened LUCENE-1671 for this).
bq. I guess we'll have an issue with classes that don't IndexInput.close
This (failing to close an IndexInput that was obtained from
Directory.openInput) should be rare in Lucene -- we try not to do that.
Failing to close clones does happen...
{quote}
With flushToRAM=true, when IW.commit is called, do we still want
to not have concurrent merges execute synchronously? Or only
wait for the merges to complete that are from ramDir to
primaryDir?
{quote}
I think only ramDir -> primaryDir? commit() today doens't block on BG merges.
> Realtime Search
> ---------------
>
> 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: 2.9
>
> 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
>
>
> 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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