diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18a688070b..e3bb2f33a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [Unreleased 2.x]
 ### Added
+- Add search role type for nodes in cluster stats ([#848](https://github.com/opensearch-project/opensearch-java/pull/848))
 
 ### Dependencies
 
@@ -13,6 +14,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Removed
 
 ### Fixed
+- Fix ClusterStatsResponse field deserialization ([#848](https://github.com/opensearch-project/opensearch-java/pull/848))
 
 ### Security
 
diff --git a/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/ClusterNodeCount.java b/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/ClusterNodeCount.java
index 17f9a8d370..47e1b7688d 100644
--- a/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/ClusterNodeCount.java
+++ b/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/ClusterNodeCount.java
@@ -55,28 +55,17 @@ public class ClusterNodeCount implements JsonpSerializable {
 
     private final int ingest;
 
-    private final int clusterManager;
+    @Deprecated
+    private final Integer master;
 
-    private final int total;
-
-    private final int votingOnly;
-
-    private final int dataCold;
-
-    @Nullable
-    private final Integer dataFrozen;
-
-    private final int dataContent;
-
-    private final int dataWarm;
+    private final Integer clusterManager;
 
-    private final int dataHot;
-
-    private final int ml;
+    private final int total;
 
     private final int remoteClusterClient;
 
-    private final int transform;
+    @Nullable
+    private final Integer search;
 
     // ---------------------------------------------------------------------------------------------
 
@@ -85,18 +74,11 @@ private ClusterNodeCount(Builder builder) {
         this.coordinatingOnly = ApiTypeHelper.requireNonNull(builder.coordinatingOnly, this, "coordinatingOnly");
         this.data = ApiTypeHelper.requireNonNull(builder.data, this, "data");
         this.ingest = ApiTypeHelper.requireNonNull(builder.ingest, this, "ingest");
-        this.clusterManager = ApiTypeHelper.requireNonNull(builder.clusterManager, this, "clusterManager");
+        this.master = builder.master;
+        this.clusterManager = builder.clusterManager;
         this.total = ApiTypeHelper.requireNonNull(builder.total, this, "total");
-        this.votingOnly = ApiTypeHelper.requireNonNull(builder.votingOnly, this, "votingOnly");
-        this.dataCold = ApiTypeHelper.requireNonNull(builder.dataCold, this, "dataCold");
-        this.dataFrozen = builder.dataFrozen;
-        this.dataContent = ApiTypeHelper.requireNonNull(builder.dataContent, this, "dataContent");
-        this.dataWarm = ApiTypeHelper.requireNonNull(builder.dataWarm, this, "dataWarm");
-        this.dataHot = ApiTypeHelper.requireNonNull(builder.dataHot, this, "dataHot");
-        this.ml = ApiTypeHelper.requireNonNull(builder.ml, this, "ml");
         this.remoteClusterClient = ApiTypeHelper.requireNonNull(builder.remoteClusterClient, this, "remoteClusterClient");
-        this.transform = ApiTypeHelper.requireNonNull(builder.transform, this, "transform");
-
+        this.search = builder.search;
     }
 
     public static ClusterNodeCount of(Function<Builder, ObjectBuilder<ClusterNodeCount>> fn) {
@@ -125,7 +107,15 @@ public final int ingest() {
     }
 
     /**
-     * Required - API name: {@code clusterManager}
+     * API name: {@code master}
+     */
+    @Deprecated
+    public final int master() {
+        return this.master;
+    }
+
+    /**
+     * API name: {@code clusterManager}
      */
     public final int clusterManager() {
         return this.clusterManager;
@@ -138,56 +128,6 @@ public final int total() {
         return this.total;
     }
 
-    /**
-     * Required - API name: {@code voting_only}
-     */
-    public final int votingOnly() {
-        return this.votingOnly;
-    }
-
-    /**
-     * Required - API name: {@code data_cold}
-     */
-    public final int dataCold() {
-        return this.dataCold;
-    }
-
-    /**
-     * API name: {@code data_frozen}
-     */
-    @Nullable
-    public final Integer dataFrozen() {
-        return this.dataFrozen;
-    }
-
-    /**
-     * Required - API name: {@code data_content}
-     */
-    public final int dataContent() {
-        return this.dataContent;
-    }
-
-    /**
-     * Required - API name: {@code data_warm}
-     */
-    public final int dataWarm() {
-        return this.dataWarm;
-    }
-
-    /**
-     * Required - API name: {@code data_hot}
-     */
-    public final int dataHot() {
-        return this.dataHot;
-    }
-
-    /**
-     * Required - API name: {@code ml}
-     */
-    public final int ml() {
-        return this.ml;
-    }
-
     /**
      * Required - API name: {@code remote_cluster_client}
      */
@@ -196,10 +136,11 @@ public final int remoteClusterClient() {
     }
 
     /**
-     * Required - API name: {@code transform}
+     * API name: {@code search}
      */
-    public final int transform() {
-        return this.transform;
+    @Nullable
+    public final Integer search() {
+        return this.search;
     }
 
     /**
@@ -222,40 +163,26 @@ protected void serializeInternal(JsonGenerator generator, JsonpMapper mapper) {
         generator.writeKey("ingest");
         generator.write(this.ingest);
 
-        generator.writeKey("cluster_manager");
-        generator.write(this.clusterManager);
-
-        generator.writeKey("total");
-        generator.write(this.total);
-
-        generator.writeKey("voting_only");
-        generator.write(this.votingOnly);
-
-        generator.writeKey("data_cold");
-        generator.write(this.dataCold);
-
-        if (this.dataFrozen != null) {
-            generator.writeKey("data_frozen");
-            generator.write(this.dataFrozen);
-
+        if (this.master != null) {
+            generator.writeKey("master");
+            generator.write(this.master);
         }
-        generator.writeKey("data_content");
-        generator.write(this.dataContent);
-
-        generator.writeKey("data_warm");
-        generator.write(this.dataWarm);
 
-        generator.writeKey("data_hot");
-        generator.write(this.dataHot);
+        if (this.clusterManager != null) {
+            generator.writeKey("cluster_manager");
+            generator.write(this.clusterManager);
+        }
 
-        generator.writeKey("ml");
-        generator.write(this.ml);
+        generator.writeKey("total");
+        generator.write(this.total);
 
         generator.writeKey("remote_cluster_client");
         generator.write(this.remoteClusterClient);
 
-        generator.writeKey("transform");
-        generator.write(this.transform);
+        if (this.search != null) {
+            generator.writeKey("search");
+            generator.write(this.search);
+        }
 
     }
 
@@ -272,28 +199,15 @@ public static class Builder extends ObjectBuilderBase implements ObjectBuilder<C
 
         private Integer ingest;
 
+        private Integer master;
+
         private Integer clusterManager;
 
         private Integer total;
 
-        private Integer votingOnly;
-
-        private Integer dataCold;
-
-        @Nullable
-        private Integer dataFrozen;
-
-        private Integer dataContent;
-
-        private Integer dataWarm;
-
-        private Integer dataHot;
-
-        private Integer ml;
-
         private Integer remoteClusterClient;
 
-        private Integer transform;
+        private Integer search;
 
         /**
          * Required - API name: {@code coordinating_only}
@@ -320,74 +234,27 @@ public final Builder ingest(int value) {
         }
 
         /**
-         * Required - API name: {@code clusterManager}
-         */
-        public final Builder clusterManager(int value) {
-            this.clusterManager = value;
-            return this;
-        }
-
-        /**
-         * Required - API name: {@code total}
-         */
-        public final Builder total(int value) {
-            this.total = value;
-            return this;
-        }
-
-        /**
-         * Required - API name: {@code voting_only}
+         * API name: {@code master}
          */
-        public final Builder votingOnly(int value) {
-            this.votingOnly = value;
+        @Deprecated
+        public final Builder master(int value) {
+            this.master = value;
             return this;
         }
 
         /**
-         * Required - API name: {@code data_cold}
+         * API name: {@code clusterManager}
          */
-        public final Builder dataCold(int value) {
-            this.dataCold = value;
-            return this;
-        }
-
-        /**
-         * API name: {@code data_frozen}
-         */
-        public final Builder dataFrozen(@Nullable Integer value) {
-            this.dataFrozen = value;
-            return this;
-        }
-
-        /**
-         * Required - API name: {@code data_content}
-         */
-        public final Builder dataContent(int value) {
-            this.dataContent = value;
-            return this;
-        }
-
-        /**
-         * Required - API name: {@code data_warm}
-         */
-        public final Builder dataWarm(int value) {
-            this.dataWarm = value;
-            return this;
-        }
-
-        /**
-         * Required - API name: {@code data_hot}
-         */
-        public final Builder dataHot(int value) {
-            this.dataHot = value;
+        public final Builder clusterManager(int value) {
+            this.clusterManager = value;
             return this;
         }
 
         /**
-         * Required - API name: {@code ml}
+         * Required - API name: {@code total}
          */
-        public final Builder ml(int value) {
-            this.ml = value;
+        public final Builder total(int value) {
+            this.total = value;
             return this;
         }
 
@@ -400,10 +267,11 @@ public final Builder remoteClusterClient(int value) {
         }
 
         /**
-         * Required - API name: {@code transform}
+         * API name: {@code search}
          */
-        public final Builder transform(int value) {
-            this.transform = value;
+        @Nullable
+        public final Builder search(int value) {
+            this.search = value;
             return this;
         }
 
@@ -435,17 +303,11 @@ protected static void setupClusterNodeCountDeserializer(ObjectDeserializer<Clust
         op.add(Builder::coordinatingOnly, JsonpDeserializer.integerDeserializer(), "coordinating_only");
         op.add(Builder::data, JsonpDeserializer.integerDeserializer(), "data");
         op.add(Builder::ingest, JsonpDeserializer.integerDeserializer(), "ingest");
+        op.add(Builder::master, JsonpDeserializer.integerDeserializer(), "master");
         op.add(Builder::clusterManager, JsonpDeserializer.integerDeserializer(), "cluster_manager");
         op.add(Builder::total, JsonpDeserializer.integerDeserializer(), "total");
-        op.add(Builder::votingOnly, JsonpDeserializer.integerDeserializer(), "voting_only");
-        op.add(Builder::dataCold, JsonpDeserializer.integerDeserializer(), "data_cold");
-        op.add(Builder::dataFrozen, JsonpDeserializer.integerDeserializer(), "data_frozen");
-        op.add(Builder::dataContent, JsonpDeserializer.integerDeserializer(), "data_content");
-        op.add(Builder::dataWarm, JsonpDeserializer.integerDeserializer(), "data_warm");
-        op.add(Builder::dataHot, JsonpDeserializer.integerDeserializer(), "data_hot");
-        op.add(Builder::ml, JsonpDeserializer.integerDeserializer(), "ml");
         op.add(Builder::remoteClusterClient, JsonpDeserializer.integerDeserializer(), "remote_cluster_client");
-        op.add(Builder::transform, JsonpDeserializer.integerDeserializer(), "transform");
+        op.add(Builder::search, JsonpDeserializer.integerDeserializer(), "search");
 
     }
 
diff --git a/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/NodePackagingType.java b/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/NodePackagingType.java
index 6cbc2359c0..d79830ef0a 100644
--- a/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/NodePackagingType.java
+++ b/java-client/src/main/java/org/opensearch/client/opensearch/cluster/stats/NodePackagingType.java
@@ -50,8 +50,6 @@
 public class NodePackagingType implements JsonpSerializable {
     private final int count;
 
-    private final String flavor;
-
     private final String type;
 
     // ---------------------------------------------------------------------------------------------
@@ -59,7 +57,6 @@ public class NodePackagingType implements JsonpSerializable {
     private NodePackagingType(Builder builder) {
 
         this.count = ApiTypeHelper.requireNonNull(builder.count, this, "count");
-        this.flavor = ApiTypeHelper.requireNonNull(builder.flavor, this, "flavor");
         this.type = ApiTypeHelper.requireNonNull(builder.type, this, "type");
 
     }
@@ -75,13 +72,6 @@ public final int count() {
         return this.count;
     }
 
-    /**
-     * Required - API name: {@code flavor}
-     */
-    public final String flavor() {
-        return this.flavor;
-    }
-
     /**
      * Required - API name: {@code type}
      */
@@ -103,9 +93,6 @@ protected void serializeInternal(JsonGenerator generator, JsonpMapper mapper) {
         generator.writeKey("count");
         generator.write(this.count);
 
-        generator.writeKey("flavor");
-        generator.write(this.flavor);
-
         generator.writeKey("type");
         generator.write(this.type);
 
@@ -120,8 +107,6 @@ protected void serializeInternal(JsonGenerator generator, JsonpMapper mapper) {
     public static class Builder extends ObjectBuilderBase implements ObjectBuilder<NodePackagingType> {
         private Integer count;
 
-        private String flavor;
-
         private String type;
 
         /**
@@ -132,14 +117,6 @@ public final Builder count(int value) {
             return this;
         }
 
-        /**
-         * Required - API name: {@code flavor}
-         */
-        public final Builder flavor(String value) {
-            this.flavor = value;
-            return this;
-        }
-
         /**
          * Required - API name: {@code type}
          */
@@ -174,7 +151,6 @@ public NodePackagingType build() {
     protected static void setupNodePackagingTypeDeserializer(ObjectDeserializer<NodePackagingType.Builder> op) {
 
         op.add(Builder::count, JsonpDeserializer.integerDeserializer(), "count");
-        op.add(Builder::flavor, JsonpDeserializer.stringDeserializer(), "flavor");
         op.add(Builder::type, JsonpDeserializer.stringDeserializer(), "type");
 
     }
diff --git a/java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractClusterClientIT.java b/java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractClusterClientIT.java
index b28836bc03..96cbdc856c 100644
--- a/java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractClusterClientIT.java
+++ b/java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractClusterClientIT.java
@@ -21,6 +21,8 @@
 import org.opensearch.client.opensearch._types.HealthStatus;
 import org.opensearch.client.opensearch._types.Level;
 import org.opensearch.client.opensearch._types.OpenSearchException;
+import org.opensearch.client.opensearch.cluster.ClusterStatsRequest;
+import org.opensearch.client.opensearch.cluster.ClusterStatsResponse;
 import org.opensearch.client.opensearch.cluster.GetClusterSettingsRequest;
 import org.opensearch.client.opensearch.cluster.GetClusterSettingsResponse;
 import org.opensearch.client.opensearch.cluster.HealthRequest;
@@ -299,4 +301,15 @@ public void testClusterHealthNotFoundIndex() throws IOException {
             assertNotNull(e);
         }
     }
+
+    public void testClusterStats() throws IOException {
+        OpenSearchClient openSearchClient = javaClient();
+        javaClient().indices().create(b -> b.index("index"));
+        ClusterStatsRequest request = new ClusterStatsRequest.Builder().build();
+        ClusterStatsResponse response = openSearchClient.cluster().stats(request);
+        assertNotNull(response);
+        assertNotNull(response.clusterName());
+        assertNotEquals(response.nodes().count().total(), 0);
+        assertNotEquals(response.indices().count(), 0);
+    }
 }