smengcl commented on a change in pull request #2489:
URL: https://github.com/apache/ozone/pull/2489#discussion_r683759950



##########
File path: 
hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/NSSummaryEndpoint.java
##########
@@ -267,26 +368,69 @@ public Response getDiskUsage(@QueryParam("path") String 
path)
         // reformat the response
         diskUsage.setSubpath(subpath);
         long dataSize = getTotalSize(subdirObjectId);
+        dirDataSize += dataSize;
+
+        if (withReplica) {
+          long subdirDU = 0;
+          List<OmKeyInfo> keys = listKeysUnderDirectory(subdirObjectId);
+          for (OmKeyInfo keyInfo: keys) {
+            subdirDU += getKeySizeWithReplication(keyInfo);
+          }
+          diskUsage.setSizeWithReplica(subdirDU);
+          dirDataSizeWithReplica += subdirDU;
+        }
+
         diskUsage.setSize(dataSize);
         subdirDUData.add(diskUsage);
       }
+
+      // handle direct keys under directory
+      if (listFile || withReplica) {
+        List<OmKeyInfo> directKeys = listDirectKeys(dirObjectId);

Review comment:
       Same here. We can calculate the replica size directly without gathering 
all `OmKeyInfo`s




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