diff --git a/modules/lang-mustache/src/main/java/org/elasticsearch/script/mustache/TransportMultiSearchTemplateAction.java b/modules/lang-mustache/src/main/java/org/elasticsearch/script/mustache/TransportMultiSearchTemplateAction.java
index d859fb509e915..4b0c365ba8b13 100644
--- a/modules/lang-mustache/src/main/java/org/elasticsearch/script/mustache/TransportMultiSearchTemplateAction.java
+++ b/modules/lang-mustache/src/main/java/org/elasticsearch/script/mustache/TransportMultiSearchTemplateAction.java
@@ -8,6 +8,9 @@
 
 package org.elasticsearch.script.mustache;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.elasticsearch.ExceptionsHelper;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.action.search.MultiSearchRequest;
 import org.elasticsearch.action.search.MultiSearchResponse;
@@ -31,6 +34,8 @@
 
 public class TransportMultiSearchTemplateAction extends HandledTransportAction<MultiSearchTemplateRequest, MultiSearchTemplateResponse> {
 
+    private static final Logger logger = LogManager.getLogger(TransportMultiSearchTemplateAction.class);
+
     private final ScriptService scriptService;
     private final NamedXContentRegistry xContentRegistry;
     private final NodeClient client;
@@ -76,6 +81,9 @@ protected void doExecute(Task task, MultiSearchTemplateRequest request, ActionLi
                 searchRequest = convert(searchTemplateRequest, searchTemplateResponse, scriptService, xContentRegistry, searchUsageHolder);
             } catch (Exception e) {
                 items[i] = new MultiSearchTemplateResponse.Item(null, e);
+                if (ExceptionsHelper.status(e).getStatus() >= 500 && ExceptionsHelper.isNodeOrShardUnavailableTypeException(e) == false) {
+                    logger.warn("MultiSearchTemplate convert failure", e);
+                }
                 continue;
             }
             items[i] = new MultiSearchTemplateResponse.Item(searchTemplateResponse, null);
diff --git a/server/src/main/java/org/elasticsearch/action/search/TransportMultiSearchAction.java b/server/src/main/java/org/elasticsearch/action/search/TransportMultiSearchAction.java
index a2324010876bf..f51c700c8c8c9 100644
--- a/server/src/main/java/org/elasticsearch/action/search/TransportMultiSearchAction.java
+++ b/server/src/main/java/org/elasticsearch/action/search/TransportMultiSearchAction.java
@@ -8,6 +8,9 @@
 
 package org.elasticsearch.action.search;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.elasticsearch.ExceptionsHelper;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.action.support.ActionFilters;
 import org.elasticsearch.action.support.HandledTransportAction;
@@ -31,6 +34,7 @@
 
 public class TransportMultiSearchAction extends HandledTransportAction<MultiSearchRequest, MultiSearchResponse> {
 
+    private static final Logger logger = LogManager.getLogger(TransportMultiSearchAction.class);
     private final int allocatedProcessors;
     private final ThreadPool threadPool;
     private final ClusterService clusterService;
@@ -155,6 +159,9 @@ public void onResponse(final SearchResponse searchResponse) {
 
             @Override
             public void onFailure(final Exception e) {
+                if (ExceptionsHelper.status(e).getStatus() >= 500 && ExceptionsHelper.isNodeOrShardUnavailableTypeException(e) == false) {
+                    logger.warn("TransportMultiSearchAction failure", e);
+                }
                 handleResponse(request.responseSlot, new MultiSearchResponse.Item(null, e));
             }