uschindler commented on code in PR #13570:
URL: https://github.com/apache/lucene/pull/13570#discussion_r1683097237


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lucene/core/src/java/org/apache/lucene/index/IndexFileNames.java:
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@@ -142,6 +143,26 @@ public static String stripSegmentName(String filename) {
     return filename;
   }
 
+  /**

Review Comment:
   Why should we remap already open files multiple times? Lucene opens only new 
segments, but old ones are kept open on index refreshes. We do not close or 
reopen already open files. Of course, we could track file names, too, but why 
should we do this?
   
   We only have generations for updated files and those are now opened in 
separate arenas (as the generation for the original files is "0").



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