mikemccand commented on a change in pull request #1434: LUCENE-9324: Add an ID
to SegmentCommitInfo
URL: https://github.com/apache/lucene-solr/pull/1434#discussion_r409553076
##########
File path: lucene/core/src/java/org/apache/lucene/index/IndexWriter.java
##########
@@ -3081,7 +3081,7 @@ private SegmentCommitInfo
copySegmentAsIs(SegmentCommitInfo info, String segName
info.info.getUseCompoundFile(),
info.info.getCodec(),
info.info.getDiagnostics(),
info.info.getId(), info.info.getAttributes(), info.info.getIndexSort());
SegmentCommitInfo newInfoPerCommit = new SegmentCommitInfo(newInfo,
info.getDelCount(), info.getSoftDelCount(), info.getDelGen(),
-
info.getFieldInfosGen(), info.getDocValuesGen());
+
info.getFieldInfosGen(), info.getDocValuesGen(), info.getId());
Review comment:
This happens during `IndexWriter.addIndexes(Directory[])` right? I wonder
whether we should give a new id instead of reusing the old one? E.g. the
segment (likely) now has a new name, and is in a different `Directory`, and is
copied/forked from a prior segment, so maybe it should get a new `id`?
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