diff --git a/modules/mapper-extras/src/test/java/org/opensearch/index/mapper/ScaledFloatFieldMapperTests.java b/modules/mapper-extras/src/test/java/org/opensearch/index/mapper/ScaledFloatFieldMapperTests.java
index 0c92523974f23..b28fbf8a57750 100644
--- a/modules/mapper-extras/src/test/java/org/opensearch/index/mapper/ScaledFloatFieldMapperTests.java
+++ b/modules/mapper-extras/src/test/java/org/opensearch/index/mapper/ScaledFloatFieldMapperTests.java
@@ -34,6 +34,7 @@
 
 import org.apache.lucene.index.DocValuesType;
 import org.apache.lucene.index.IndexableField;
+import org.opensearch.cluster.metadata.IndexMetadata;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.util.FeatureFlags;
 import org.opensearch.common.xcontent.XContentFactory;
@@ -132,6 +133,7 @@ public void testScaledFloatWithStarTree() throws Exception {
     protected Settings getIndexSettings() {
         return Settings.builder()
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(super.getIndexSettings())
             .build();
     }
diff --git a/server/src/internalClusterTest/java/org/opensearch/index/mapper/StarTreeMapperIT.java b/server/src/internalClusterTest/java/org/opensearch/index/mapper/StarTreeMapperIT.java
index b657350ed6cef..a76af5a01bcc0 100644
--- a/server/src/internalClusterTest/java/org/opensearch/index/mapper/StarTreeMapperIT.java
+++ b/server/src/internalClusterTest/java/org/opensearch/index/mapper/StarTreeMapperIT.java
@@ -12,6 +12,7 @@
 import org.opensearch.action.index.IndexResponse;
 import org.opensearch.action.search.SearchResponse;
 import org.opensearch.action.support.master.AcknowledgedResponse;
+import org.opensearch.cluster.metadata.IndexMetadata;
 import org.opensearch.common.Rounding;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.util.FeatureFlags;
@@ -56,6 +57,7 @@ public class StarTreeMapperIT extends OpenSearchIntegTestCase {
     private static final String TEST_INDEX = "test";
     Settings settings = Settings.builder()
         .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+        .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
         .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
         .build();
 
@@ -756,6 +758,7 @@ public void testValidCompositeIndexWithDuplicateDates() {
     public void testCompositeIndexWithIndexNotSpecified() {
         Settings settings = Settings.builder()
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
         MapperParsingException ex = expectThrows(
             MapperParsingException.class,
@@ -767,9 +770,25 @@ public void testCompositeIndexWithIndexNotSpecified() {
         );
     }
 
+    public void testAppendOnlyInCompositeIndexNotSpecified() {
+        Settings settings = Settings.builder()
+            .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
+            .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .build();
+        MapperParsingException ex = expectThrows(
+            MapperParsingException.class,
+            () -> prepareCreate(TEST_INDEX).setSettings(settings).setMapping(createMinimalTestMapping(false, false, false)).get()
+        );
+        assertEquals(
+            "Failed to parse mapping [_doc]: Set 'index.append_only.enabled' as true as part of index settings to use star tree index",
+            ex.getMessage()
+        );
+    }
+
     public void testCompositeIndexWithHigherTranslogFlushSize() {
         Settings settings = Settings.builder()
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(513, ByteSizeUnit.MB))
             .build();
         IllegalArgumentException ex = expectThrows(
@@ -1082,6 +1101,7 @@ public void testMaxDimsCompositeIndex() {
                     Settings.builder()
                         .put(StarTreeIndexSettings.STAR_TREE_MAX_DIMENSIONS_SETTING.getKey(), 2)
                         .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+                        .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
                         .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
                 )
                 .get()
@@ -1101,6 +1121,7 @@ public void testMaxMetricsCompositeIndex() {
                     Settings.builder()
                         .put(StarTreeIndexSettings.STAR_TREE_MAX_BASE_METRICS_SETTING.getKey(), 4)
                         .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+                        .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
                         .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
                 )
                 .get()
@@ -1119,6 +1140,7 @@ public void testMaxCalendarIntervalsCompositeIndex() {
                     Settings.builder()
                         .put(StarTreeIndexSettings.STAR_TREE_MAX_DATE_INTERVALS_SETTING.getKey(), 1)
                         .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+                        .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
                         .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
                 )
                 .get()
diff --git a/server/src/main/java/org/opensearch/index/mapper/ObjectMapper.java b/server/src/main/java/org/opensearch/index/mapper/ObjectMapper.java
index b93c82d7a5c7c..a1e63661c61d3 100644
--- a/server/src/main/java/org/opensearch/index/mapper/ObjectMapper.java
+++ b/server/src/main/java/org/opensearch/index/mapper/ObjectMapper.java
@@ -462,6 +462,15 @@ protected static void parseCompositeField(
                     )
                 );
             }
+            if (IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.get(parserContext.getSettings()) == false) {
+                throw new IllegalArgumentException(
+                    String.format(
+                        Locale.ROOT,
+                        "Set '%s' as true as part of index settings to use star tree index",
+                        IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey()
+                    )
+                );
+            }
             Iterator<Map.Entry<String, Object>> iterator = compositeNode.entrySet().iterator();
             if (compositeNode.size() > StarTreeIndexSettings.STAR_TREE_MAX_FIELDS_SETTING.get(parserContext.getSettings())) {
                 throw new IllegalArgumentException(
diff --git a/server/src/test/java/org/opensearch/cluster/metadata/TranslogFlushIntervalSettingsTests.java b/server/src/test/java/org/opensearch/cluster/metadata/TranslogFlushIntervalSettingsTests.java
index f54b6cdf1b152..ae609b7ffab72 100644
--- a/server/src/test/java/org/opensearch/cluster/metadata/TranslogFlushIntervalSettingsTests.java
+++ b/server/src/test/java/org/opensearch/cluster/metadata/TranslogFlushIntervalSettingsTests.java
@@ -31,6 +31,7 @@ public void testValidSettings() {
         Settings requestSettings = Settings.builder()
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "50mb")
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
 
         // This should not throw an exception
@@ -38,7 +39,10 @@ public void testValidSettings() {
     }
 
     public void testDefaultTranslogFlushSetting() {
-        Settings requestSettings = Settings.builder().put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true).build();
+        Settings requestSettings = Settings.builder()
+            .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
+            .build();
 
         // This should not throw an exception
         IllegalArgumentException ex = expectThrows(
@@ -61,6 +65,7 @@ public void testNullTranslogFlushSetting() {
         Settings requestSettings = Settings.builder()
             .putNull(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey())
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
 
         // This should not throw an exception
@@ -75,6 +80,7 @@ public void testExceedingMaxFlushSize() {
         Settings requestSettings = Settings.builder()
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "150mb")
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
 
         IllegalArgumentException ex = expectThrows(
@@ -88,6 +94,7 @@ public void testEqualToMaxFlushSize() {
         Settings requestSettings = Settings.builder()
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "100mb")
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
 
         // This should not throw an exception
@@ -99,7 +106,10 @@ public void testUpdateIndexThresholdFlushSize() {
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "100mb")
             .build();
 
-        Settings indexSettings = Settings.builder().put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true).build();
+        Settings indexSettings = Settings.builder()
+            .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
+            .build();
 
         // This should not throw an exception
         assertTrue(
@@ -116,7 +126,10 @@ public void testUpdateFlushSizeAboveThresholdWithCompositeIndex() {
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "131mb")
             .build();
 
-        Settings indexSettings = Settings.builder().put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true).build();
+        Settings indexSettings = Settings.builder()
+            .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
+            .build();
 
         Optional<String> err = MetadataCreateIndexService.validateTranslogFlushIntervalSettingsForCompositeIndex(
             requestSettings,
diff --git a/server/src/test/java/org/opensearch/index/codec/composite912/datacube/startree/AbstractStarTreeDVFormatTests.java b/server/src/test/java/org/opensearch/index/codec/composite912/datacube/startree/AbstractStarTreeDVFormatTests.java
index 4dfd8c08575f2..17362e724657c 100644
--- a/server/src/test/java/org/opensearch/index/codec/composite912/datacube/startree/AbstractStarTreeDVFormatTests.java
+++ b/server/src/test/java/org/opensearch/index/codec/composite912/datacube/startree/AbstractStarTreeDVFormatTests.java
@@ -100,6 +100,7 @@ public static MapperService createMapperService(XContentBuilder builder) throws
             .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1)
             .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 1)
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
             .build();
         IndexMetadata indexMetadata = IndexMetadata.builder("test").settings(settings).putMapping(builder.toString()).build();
diff --git a/server/src/test/java/org/opensearch/index/mapper/ObjectMapperTests.java b/server/src/test/java/org/opensearch/index/mapper/ObjectMapperTests.java
index 77534b514a59a..45483ef51a5f9 100644
--- a/server/src/test/java/org/opensearch/index/mapper/ObjectMapperTests.java
+++ b/server/src/test/java/org/opensearch/index/mapper/ObjectMapperTests.java
@@ -32,6 +32,7 @@
 
 package org.opensearch.index.mapper;
 
+import org.opensearch.cluster.metadata.IndexMetadata;
 import org.opensearch.common.compress.CompressedXContent;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.common.util.FeatureFlags;
@@ -542,6 +543,7 @@ public void testCompositeFields() throws Exception {
 
         Settings settings = Settings.builder()
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
             .build();
 
diff --git a/server/src/test/java/org/opensearch/index/mapper/StarTreeMapperTests.java b/server/src/test/java/org/opensearch/index/mapper/StarTreeMapperTests.java
index 78edd7c6fe4e7..435621548942b 100644
--- a/server/src/test/java/org/opensearch/index/mapper/StarTreeMapperTests.java
+++ b/server/src/test/java/org/opensearch/index/mapper/StarTreeMapperTests.java
@@ -8,6 +8,7 @@
 
 package org.opensearch.index.mapper;
 
+import org.opensearch.cluster.metadata.IndexMetadata;
 import org.opensearch.common.CheckedConsumer;
 import org.opensearch.common.Rounding;
 import org.opensearch.common.settings.ClusterSettings;
@@ -67,6 +68,7 @@ public void teardown() {
     protected Settings getIndexSettings() {
         return Settings.builder()
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), new ByteSizeValue(512, ByteSizeUnit.MB))
             .put(SETTINGS)
             .build();
@@ -138,6 +140,7 @@ public void testValidValueForCompositeIndex() {
         Settings settings = Settings.builder()
             .put(INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "256mb")
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .put(COMPOSITE_INDEX_MAX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING.getKey(), "512mb")
             .build();
 
diff --git a/server/src/test/java/org/opensearch/search/SearchServiceStarTreeTests.java b/server/src/test/java/org/opensearch/search/SearchServiceStarTreeTests.java
index b548c844b2476..93b133c0302c9 100644
--- a/server/src/test/java/org/opensearch/search/SearchServiceStarTreeTests.java
+++ b/server/src/test/java/org/opensearch/search/SearchServiceStarTreeTests.java
@@ -96,6 +96,7 @@ public void testQueryParsingForMetricAggregations() throws IOException {
             .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1)
             .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 1)
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
         CreateIndexRequestBuilder builder = client().admin()
             .indices()
@@ -246,6 +247,7 @@ public void testQueryParsingForDateHistogramAggregations() throws IOException {
             .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1)
             .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 1)
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
         CreateIndexRequestBuilder builder = client().admin()
             .indices()
@@ -494,6 +496,7 @@ public void testInvalidQueryParsingForDateHistogramAggregations() throws IOExcep
             .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1)
             .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 1)
             .put(StarTreeIndexSettings.IS_COMPOSITE_INDEX_SETTING.getKey(), true)
+            .put(IndexMetadata.INDEX_APPEND_ONLY_ENABLED_SETTING.getKey(), true)
             .build();
         CreateIndexRequestBuilder builder = client().admin()
             .indices()