mayya-sharipova opened a new pull request #580:
URL: https://github.com/apache/lucene/pull/580
Current when doing knn search on an segment where all documents
with knn field were deleted, we get the following error:
maxSize must be > 0 and < 2147483630; got: 0
java.lang.IllegalArgumentException: maxSize must be > 0 and < 2147483630;
got: 0
at
__randomizedtesting.SeedInfo.seed([43F1F124D7076A4E:1B860BFCCB9B0BB5]:0)
at org.apache.lucene.util.LongHeap.<init>(LongHeap.java:57)
at org.apache.lucene.util.LongHeap$1.<init>(LongHeap.java:69)
at org.apache.lucene.util.LongHeap.create(LongHeap.java:69)
at
org.apache.lucene.util.hnsw.NeighborQueue.<init>(NeighborQueue.java:41)
at org.apache.lucene.util.hnsw.HnswGraph.search(HnswGraph.java:105)#
This patch fixes this error and ensures empty TopDocs are returned when
knn field doesn't have any documents left.
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