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From "Robert Muir (JIRA)" <>
Subject [jira] [Created] (SOLR-4764) When using NRT, just init the reader from IndexWriter
Date Thu, 25 Apr 2013 15:30:15 GMT
Robert Muir created SOLR-4764:

             Summary: When using NRT, just init the reader from IndexWriter
                 Key: SOLR-4764
             Project: Solr
          Issue Type: Improvement
            Reporter: Robert Muir

Spinoff from SOLR-4761

Solr first opens a DirectoryReader from the directory, then later will pass this to IW openIfChanged.

I noticed this when i was confused that mergedsegmentwarmer doesn't appear to work at first
until after you've reopened...

I'm not totally sure what the current behavior causes (does IW's pool reuse segments from
this passed-in "external" reader, or is this causing some horrible doubling-up/inefficient
stuff etc?). To some extent i think we should change it even if its actually performant: I
think its confusing.

I think ideally we'd change IndexReaderFactory's method to take writer instead of directory
so that custom DirectoryReaders can still work.

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