benwtrent commented on code in PR #12660:
URL: https://github.com/apache/lucene/pull/12660#discussion_r1370023343
##########
lucene/core/src/java/org/apache/lucene/codecs/lucene95/Lucene95HnswVectorsFormat.java:
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@@ -146,18 +148,24 @@ public final class Lucene95HnswVectorsFormat extends
KnnVectorsFormat {
*/
private final int beamWidth;
+ private final int mergeWorkers;
+
/** Constructs a format using default graph construction parameters */
public Lucene95HnswVectorsFormat() {
this(DEFAULT_MAX_CONN, DEFAULT_BEAM_WIDTH);
}
+ public Lucene95HnswVectorsFormat(int maxConn, int beamWidth) {
+ this(maxConn, beamWidth, DEFAULT_MERGE_WORKER);
+ }
+
/**
* Constructs a format using the given graph construction parameters.
*
* @param maxConn the maximum number of connections to a node in the HNSW
graph
* @param beamWidth the size of the queue maintained during graph
construction.
*/
- public Lucene95HnswVectorsFormat(int maxConn, int beamWidth) {
+ public Lucene95HnswVectorsFormat(int maxConn, int beamWidth, int
mergeWorkers) {
Review Comment:
@zhaih I understand. We don't need to make the bigger move until we see the
need for parallel merges elsewhere.
But, I do think it should be an `ExecutorService` that is passed in here,
not a number of workers.
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