[LUCENE-2299] if you open an NRT reader while addIndexes* is running it may miss segments

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.9.3, 3.0.2, 3.1, 4.0-ALPHA
• Fix Version/s: 2.9.3, 3.0.2, 3.1, 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Michael McCandless
• Created: 07/Mar/10 11:58
• Updated: 28/Aug/22 12:21
• Resolved: 01/Jun/10 14:46

Description

Earwin spotted this in pending ongoing refactoring of Dir/MultiReader, but I wanted to open this separately just to make sure we fix it for 3.1...

This is the fix:

Index: src/java/org/apache/lucene/index/DirectoryReader.java
===================================================================
--- src/java/org/apache/lucene/index/DirectoryReader.java	(revision 919119)
+++ src/java/org/apache/lucene/index/DirectoryReader.java	(working copy)
@@ -145,7 +145,7 @@
     for (int i=0;i<numSegments;i++) {
       boolean success = false;
       try {
-        final SegmentInfo info = infos.info(upto);
+        final SegmentInfo info = infos.info(i);
         if (info.dir == dir) {
           readers[upto++] = writer.readerPool.getReadOnlyClone(info, true, termInfosIndexDivisor);
         }