msokolov commented on code in PR #14607:
URL: https://github.com/apache/lucene/pull/14607#discussion_r2473882597
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lucene/core/src/java/org/apache/lucene/index/SegmentInfos.java:
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@@ -402,11 +389,38 @@ private static void parseSegmentInfos(
}
long totalDocs = 0;
+
for (int seg = 0; seg < numSegments; seg++) {
String segName = input.readString();
byte[] segmentID = new byte[StringHelper.ID_LENGTH];
input.readBytes(segmentID, 0, segmentID.length);
- Codec codec = readCodec(input);
+ Codec codec = null;
+ try {
+ codec = readCodec(input);
Review Comment:
So ... I am pretty sure that `Codec.availableCodecs` is simply listing what
is available on the classpath? I think the best we can do is attempt to read
the segmentinfos file, and if we fail, give a fairly generic exception message.
You seemed to be saying your system would be able to read an index for which
we don't have any backward codec available ("As such, we are able to read the
SegmentInfos file and extract the indexCreatedVersionMajor which is how it was
done previously"), but how can that be?
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