Batch rollover cluster state updates.

server/src/main/java/org/elasticsearch/action/admin/indices/create/CreateIndexClusterStateUpdateRequest.java

@@ -46,6 +46,8 @@ public class CreateIndexClusterStateUpdateRequest extends ClusterStateUpdateRequ
 
     private ActiveShardCount waitForActiveShards = ActiveShardCount.DEFAULT;
 
+    private boolean performReroute = true;
+
     public CreateIndexClusterStateUpdateRequest(String cause, String index, String providedName) {
         this.cause = cause;
         this.index = index;
@@ -175,6 +177,15 @@ public CreateIndexClusterStateUpdateRequest dataStreamName(String dataStreamName
         return this;
     }
 
+    public boolean performReroute() {
+        return performReroute;
+    }
+
+    public CreateIndexClusterStateUpdateRequest performReroute(boolean performReroute) {
+        this.performReroute = performReroute;
+        return this;
+    }
+
     @Override
     public String toString() {
         return "CreateIndexClusterStateUpdateRequest{"

server/src/main/java/org/elasticsearch/action/admin/indices/rollover/MetadataRolloverService.java

@@ -367,7 +367,8 @@ static CreateIndexClusterStateUpdateRequest prepareCreateIndexRequest(
             .settings(b.build())
             .aliases(createIndexRequest.aliases())
             .waitForActiveShards(ActiveShardCount.NONE) // not waiting for shards here, will wait on the alias switch operation
-            .mappings(createIndexRequest.mappings());
+            .mappings(createIndexRequest.mappings())
+            .performReroute(false);
     }
 
     /**