diff --git a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/LedgerMetadataIndex.java b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/LedgerMetadataIndex.java
index 0f615ab6752..b2fd42a6ba8 100644
--- a/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/LedgerMetadataIndex.java
+++ b/bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/LedgerMetadataIndex.java
@@ -300,6 +300,10 @@ public void setMasterKey(long ledgerId, byte[] masterKey) throws IOException {
      * Flushes all pending changes.
      */
     public void flush() throws IOException {
+        if (pendingLedgersUpdates.isEmpty()) {
+            return;
+        }
+
         LongWrapper key = LongWrapper.get();
 
         try {
@@ -323,6 +327,10 @@ public void flush() throws IOException {
     }
 
     public void removeDeletedLedgers() throws IOException {
+        if (pendingDeletedLedgers.isEmpty()) {
+            return;
+        }
+
         LongWrapper key = LongWrapper.get();
 
         try {