diff --git a/server/src/main/java/org/opensearch/index/engine/InternalEngine.java b/server/src/main/java/org/opensearch/index/engine/InternalEngine.java
index 79cf6243cadbd..611a5cfed670f 100644
--- a/server/src/main/java/org/opensearch/index/engine/InternalEngine.java
+++ b/server/src/main/java/org/opensearch/index/engine/InternalEngine.java
@@ -886,10 +886,15 @@ public IndexResult index(Index index) throws IOException {
                  *  or calls updateDocument.
                  */
                 final IndexingStrategy plan = indexingStrategyForOperation(index);
-                if (index.origin() == Operation.Origin.PRIMARY) {
-                    reservedDocs = plan.reservedDocs;
-                } else {
+                if (index.origin() == Operation.Origin.REPLICA) {
                     reservedDocs = 0;
+                } else {
+                    reservedDocs = plan.reservedDocs;
+                }
+                if (index.origin() == Operation.Origin.REPLICA && engineConfig.getIndexSettings().isSegRepEnabledOrRemoteNode() == false) {
+                    if (plan != index.indexingStrategy()) {
+                        throw new RuntimeException("plan != index.indexingStrategy()");
+                    }
                 }
 
                 final IndexResult indexResult;
@@ -1017,6 +1022,9 @@ protected final IndexingStrategy planIndexingAsNonPrimary(Index index) throws IO
         } else {
             boolean segRepEnabled = engineConfig.getIndexSettings().isSegRepEnabledOrRemoteNode();
             versionMap.enforceSafeAccess();
+//            if (index.origin() == Operation.Origin.REPLICA && segRepEnabled == false) {
+//
+//            }
             final OpVsLuceneDocStatus opVsLucene = compareOpToLuceneDocBasedOnSeqNo(index);
             if (opVsLucene == OpVsLuceneDocStatus.OP_STALE_OR_EQUAL) {// seqNo小于等于当前已经写入的
                 if (segRepEnabled) {