Fix test errors

Author: Mikep86

x-pack/plugin/inference/src/internalClusterTest/java/org/elasticsearch/search/ccs/SemanticCrossClusterSearchIT.java

@@ -95,7 +95,7 @@ public void testSemanticCrossClusterSearch() throws Exception {
 
         SearchRequest searchRequest = new SearchRequest(localIndex, REMOTE_CLUSTER + ":" + remoteIndex);
         searchRequest.source(new SearchSourceBuilder().query(new SemanticQueryBuilder(INFERENCE_FIELD, "foo")).size(10));
-        searchRequest.setCcsMinimizeRoundtrips(false);
+        searchRequest.setCcsMinimizeRoundtrips(true);
 
         assertResponse(client(LOCAL_CLUSTER).search(searchRequest), response -> {
             assertNotNull(response);

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferenceNamedWriteablesProvider.java

@@ -13,6 +13,7 @@
 import org.elasticsearch.inference.EmptyTaskSettings;
 import org.elasticsearch.inference.InferenceResults;
 import org.elasticsearch.inference.InferenceServiceResults;
+import org.elasticsearch.inference.MinimalServiceSettings;
 import org.elasticsearch.inference.SecretSettings;
 import org.elasticsearch.inference.ServiceSettings;
 import org.elasticsearch.inference.TaskSettings;
@@ -185,6 +186,9 @@ public static List<NamedWriteableRegistry.Entry> getNamedWriteables() {
         namedWriteables.addAll(DeepSeekChatCompletionModel.namedWriteables());
         namedWriteables.addAll(SageMakerModel.namedWriteables());
         namedWriteables.addAll(SageMakerSchemas.namedWriteables());
+        namedWriteables.add(
+            new NamedWriteableRegistry.Entry(MinimalServiceSettings.class, MinimalServiceSettings.NAME, MinimalServiceSettings::new)
+        );
 
         return namedWriteables;
     }

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/queries/MapEmbeddingsProvider.java

@@ -36,7 +36,7 @@ public String getWriteableName() {
 
     @Override
     public void writeTo(StreamOutput out) throws IOException {
-        out.writeMap(embeddings);
+        out.writeMap(embeddings, StreamOutput::writeWriteable, StreamOutput::writeNamedWriteable);
     }
 
     @Override

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/LocalStateInferencePlugin.java

@@ -73,4 +73,9 @@ public Map<String, Highlighter> getHighlighters() {
     public Collection<MappedActionFilter> getMappedActionFilters() {
         return inferencePlugin.getMappedActionFilters();
     }
+
+    @Override
+    public void onNodeStarted() {
+        inferencePlugin.onNodeStarted();
+    }
 }