diff --git a/server/src/main/java/org/opensearch/threadpool/ThreadPool.java b/server/src/main/java/org/opensearch/threadpool/ThreadPool.java
index 84e67d0a5b178..0b9026b81eb4e 100644
--- a/server/src/main/java/org/opensearch/threadpool/ThreadPool.java
+++ b/server/src/main/java/org/opensearch/threadpool/ThreadPool.java
@@ -281,7 +281,13 @@ public ThreadPool(
         );
         builders.put(
             Names.INDEX_SEARCHER,
-            new ResizableExecutorBuilder(settings, Names.INDEX_SEARCHER, allocatedProcessors, 1000, runnableTaskListener)
+            new ResizableExecutorBuilder(
+                settings,
+                Names.INDEX_SEARCHER,
+                twiceAllocatedProcessors(allocatedProcessors),
+                1000,
+                runnableTaskListener
+            )
         );
 
         for (final ExecutorBuilder<?> builder : customBuilders) {