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Date: Mon, 31 Oct 2011 08:24:32 +0000 (UTC)
From: "Simon Willnauer (Created) (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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 <1369642418.40046.1320049472245.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (LUCENE-3546) IW#nrtIsCurrent retruns true if
 changes are in del queue but not in bufferedDeleteStream yet
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IW#nrtIsCurrent retruns true if changes are in del queue but not in bufferedDeleteStream yet
--------------------------------------------------------------------------------------------

                 Key: LUCENE-3546
                 URL: https://issues.apache.org/jira/browse/LUCENE-3546
             Project: Lucene - Java
          Issue Type: Bug
          Components: core/index
    Affects Versions: 4.0
            Reporter: Simon Willnauer
             Fix For: 4.0


spinnoff from SOLR-2861 - since the delete queue is not necessarily applied entirely on each request there is a chance that there are changes in the delete queue but not yet in buffered deletes. this can prevent NRT readers from reopen when they should... this shows the problematic code:

{code}
Index: java/org/apache/lucene/index/IndexWriter.java
===================================================================
--- java/org/apache/lucene/index/IndexWriter.java	(revision 1195214)
+++ java/org/apache/lucene/index/IndexWriter.java	(working copy)
@@ -4074,7 +4074,7 @@
   synchronized boolean nrtIsCurrent(SegmentInfos infos) {
     //System.out.println("IW.nrtIsCurrent " + (infos.version == segmentInfos.version && !docWriter.anyChanges() && !bufferedDeletesStream.any()));
     ensureOpen();
-    return infos.version == segmentInfos.version && !docWriter.anyChanges() && !bufferedDeletesStream.any();
+    return infos.version == segmentInfos.version && !docWriter.anyChanges() && !docWriter.deleteQueue.anyChanges();
   }
{code}

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