fix: scale nodeStack capacity with query offset so late pages aren't evicted

WeakPriorityBlockingQueue evicts lowest-scoring entries when full. With a
fixed 150-slot nodeStack, page 2+ results compete against page 1 results
and high-quality late-page candidates get evicted before ranking completes.
Adding query.offset + query.itemsPerPage() to the initial capacity ensures
enough slots exist for the requested page's candidates to survive.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/source/net/yacy/search/query/SearchEvent.java b/source/net/yacy/search/query/SearchEvent.java
index 582f0e02f..7bc87f39d 100644
--- a/source/net/yacy/search/query/SearchEvent.java
+++ b/source/net/yacy/search/query/SearchEvent.java
@@ -354,7 +354,7 @@ public final class SearchEvent implements ScoreMapUpdatesListener {
             this.imagePageCounter = query.offset;
         }
         this.loader = loader;
-        this.nodeStack = new WeakPriorityBlockingQueue<>(max_results_node, false);
+        this.nodeStack = new WeakPriorityBlockingQueue<>(max_results_node + (query != null ? query.offset + query.itemsPerPage() : 0), false);
         this.maxExpectedRemoteReferences = new AtomicInteger(0);
         this.expectedRemoteReferences = new AtomicInteger(0);
         this.excludeintext_image = Switchboard.getSwitchboard().getConfigBool("search.excludeintext.image", true);