Comments

Author: kingherc

server/src/main/java/org/elasticsearch/action/termvectors/TransportShardMultiTermsVectorAction.java

@@ -96,6 +96,7 @@ protected ShardIterator shards(ProjectState project, InternalRequest request) {
         ShardIterator iterator = clusterService.operationRouting()
             .getShards(project, request.concreteIndex(), request.request().shardId(), request.request().preference());
         if (iterator == null) {
+            // We return an empty iterator to avoid hitting an indexing node in serverless (e.g., if there are no search nodes available).
             return new ShardIterator(null, List.of());
         }
         return ShardIterator.allSearchableShards(iterator);

server/src/main/java/org/elasticsearch/action/termvectors/TransportTermVectorsAction.java

@@ -88,6 +88,7 @@ protected ShardIterator shards(ProjectState project, InternalRequest request) {
                 request.request().preference()
             );
         if (iterator == null) {
+            // We return an empty iterator to avoid hitting an indexing node in serverless (e.g., if there are no search nodes available).
             return new ShardIterator(null, List.of());
         }
         return ShardIterator.allSearchableShards(iterator);