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From "Simon Willnauer (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3546) IW#nrtIsCurrent retruns true if changes are in del queue but not in bufferedDeleteStream yet
Date Mon, 31 Oct 2011 08:24:32 GMT
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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