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https://issues.apache.org/jira/browse/LUCENE-1313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12703317#action_12703317
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Jason Rutherglen commented on LUCENE-1313:
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{quote}we should make with NRT is to not close the doc store
(stored fields, term vector) files when flushing for an NRT
reader. {quote}
Agreed, I think this feature is a must otherwise we're doing
unnecessary in ram merging.
{quote}we'd need to be able to somehow share an IndexInput &
IndexOutput; or, perhaps we can open an IndexInput even though
an IndexOutput{quote}
I ran into problems with this before, I was trying to reuse
Directory to write a transaction log. It seemed theoretically
doable however it didn't work in practice. It could have been
the seeking and replacing but I don't remember. FSIndexOutput
uses a writeable RAF and FSIndexInput is read only why would
there be an issue?
> 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
>
>
> Realtime search with transactional semantics.
> Possible future directions:
> * Optimistic concurrency
> * Replication
> Encoding each transaction into a set of bytes by writing to a RAMDirectory
> enables replication. It is difficult to replicate using other methods
> because while the document may easily be serialized, the analyzer cannot.
> I think this issue can hold realtime benchmarks which include indexing and
> searching concurrently.
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