shatejas commented on code in PR #13985:
URL: https://github.com/apache/lucene/pull/13985#discussion_r1835999756
##########
lucene/core/src/java/org/apache/lucene/codecs/KnnVectorsReader.java:
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@@ -123,4 +123,11 @@ public abstract void search(
public KnnVectorsReader getMergeInstance() {
return this;
}
+
+ /**
+ * Optional: reset or close merge resources used in the reader
+ *
+ * <p>The default implementation is empty
+ */
+ public void finishMerge() throws IOException {}
Review Comment:
> I wonder if we should reuse the close() method of merge instances for
this, what do you think @uschindler ?
I went with that solution at first, `close` is called way to late, to be
able to benefit the search requests going on as per my understanding. I was
looking for something to switch back to random access earlier and thats how I
landed with this approach. Happy to move it to `close()` if there is a
preference
> Separately, it would be nice to improve the asserting framework
(AssertingKnnVectorsReader in this case) to validate that finishMerge() is
always called on merge instances.
Wasn't aware of AssertingKnnVectorsReader. I can take a look
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