From 713f094a8e9051d60c6c59926a75d8235104e19e Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Fri, 6 Jun 2025 13:08:28 +0530
Subject: [PATCH 1/8] HDDS-13130. Rename all instances of Disk Usage to
 Namespace usage, change the API to be /usage instead of /du

---
 .../docs/content/interface/ReconApi.md        |  8 ++--
 .../static/swagger-resources/recon-api.yaml   |  8 ++--
 .../hadoop/ozone/recon/ReconConstants.java    |  2 +-
 .../ozone/recon/api/NSSummaryEndpoint.java    |  2 +-
 .../recon/ozone-recon-web/api/routes.json     | 38 +++++++++----------
 .../src/components/navBar/navBar.tsx          |  2 +-
 .../src/constants/breadcrumbs.constants.tsx   |  2 +-
 .../v2/components/duMetadata/duMetadata.tsx   |  2 +-
 .../src/v2/components/navBar/navBar.tsx       |  2 +-
 .../v2/constants/breadcrumbs.constants.tsx    |  2 +-
 .../src/v2/pages/diskUsage/diskUsage.tsx      |  8 ++--
 .../src/views/diskUsage/diskUsage.tsx         | 10 ++---
 12 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/hadoop-hdds/docs/content/interface/ReconApi.md b/hadoop-hdds/docs/content/interface/ReconApi.md
index b5b885b403e9..d047ba0a6568 100644
--- a/hadoop-hdds/docs/content/interface/ReconApi.md
+++ b/hadoop-hdds/docs/content/interface/ReconApi.md
@@ -612,7 +612,7 @@ Example: /api/v1/namespace/summary?path=/volume1/bucket1/dir/nestedDir
 
 If any `num` field is `-1`, the path request is not applicable to such an entity type.
 
-### GET /api/v1/namespace/du
+### GET /api/v1/namespace/usage
 
 **Parameters**
 
@@ -622,17 +622,17 @@ If any `num` field is `-1`, the path request is not applicable to such an entity
 
 * files (optional)
 
-  A boolean with a default value of `false`. If set to `true`, computes disk usage for keys 
+  A boolean with a default value of `false`. If set to `true`, computes namespace usage for keys 
   under the path.
 
 * replica (optional)
 
-  A boolean with a default value of `false`. If set to `true`, computes disk usage with replicated
+  A boolean with a default value of `false`. If set to `true`, computes namespace usage with replicated
 size of keys.
 
 **Returns**
 
-Returns disk usage of all sub-paths under the path. Normalizes `path` fields, returns
+Returns the namespace usage of all sub-paths under the path. Normalizes `path` fields, returns
 total size of keys directly under the path as `sizeDirectKey`, and returns 
 `size`/`sizeWithReplica` in number of bytes. 
 
diff --git a/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml b/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
index f5209d63c290..3e73bfdddd41 100644
--- a/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
+++ b/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
@@ -540,11 +540,11 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/NamespaceMetadataResponse'
-  /namespace/du:
+  /namespace/usage:
     get:
       tags:
         - Namespace Metadata
-      summary: Returns disk usage of all sub-paths under the path.
+      summary: Returns namespace usage of all sub-paths under the path.
       operationId: getDiskUsage
       parameters:
         - name: path
@@ -556,14 +556,14 @@ paths:
             type: string
         - name: files
           in: query
-          description: This boolean has a default value of false. When set to true, it calculates the disk usage for keys within the specified path and also provides a list of their corresponding sub-paths.
+          description: This boolean has a default value of false. When set to true, it calculates the namespace usage for keys within the specified path and also provides a list of their corresponding sub-paths.
           example: true
           required: false
           schema:
             type: boolean
         - name: replica
           in: query
-          description: A boolean with a default value of false. If set to true, computes disk usage with replicated size of keys.
+          description: A boolean with a default value of false. If set to true, computes namespace usage with replicated size of keys.
           example: true
           required: false
           schema:
diff --git a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconConstants.java b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconConstants.java
index 00950cfd716b..d1919f4f7b4f 100644
--- a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconConstants.java
+++ b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconConstants.java
@@ -35,7 +35,7 @@ public final class ReconConstants {
   // By default, limit the number of results returned
 
   /**
-   * The maximum number of top disk usage records to return in a /du response.
+   * The maximum number of top disk usage records to return in a /namespace/usage response.
    */
   public static final int DISK_USAGE_TOP_RECORDS_LIMIT = 30;
   public static final String DEFAULT_OPEN_KEY_INCLUDE_NON_FSO = "false";
diff --git a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/NSSummaryEndpoint.java b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/NSSummaryEndpoint.java
index 3a994df8b6c4..1adf521bd679 100644
--- a/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/NSSummaryEndpoint.java
+++ b/hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/api/NSSummaryEndpoint.java
@@ -106,7 +106,7 @@ public Response getBasicInfo(
    * @throws IOException
    */
   @GET
-  @Path("/du")
+  @Path("/usage")
   @SuppressWarnings("methodlength")
   public Response getDiskUsage(@QueryParam("path") String path,
                                @DefaultValue("false") @QueryParam("files") boolean listFile,
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/api/routes.json b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/api/routes.json
index e094f2b6ea19..af586efb3fae 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/api/routes.json
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/api/routes.json
@@ -3,25 +3,25 @@
   "/containers/:id/keys": "/keys",
   "/utilization/fileCount": "/fileSizeCounts",
   "/utilization/containerCount": "/containerCount",
-  "/namespace/du?path=/&files=true&sortSubpaths=true": "/root",
-  "/namespace/du?path=/vol:id&files=true&sortSubPaths=true": "/volume",
-  "/namespace/du?path=/vol:id/&files=true&sortSubPaths=true": "/volume",
-  "/namespace/du?path=/dummyVolume&files=true&sortSubPaths=true": "/volume",
-  "/namespace/du?path=/vol:id/bucket:id&files=true&sortSubPaths=true": "/bucket",
-  "/namespace/du?path=/dummyVolume/bucket:id&files=true&sortSubPaths=true": "/bucket",
-  "/namespace/du?path=/dummyVolume/bucket:id/&files=true&sortSubPaths=true": "/bucket",
-  "/namespace/du?path=/dummyVolume/dummyBucket&files=true&sortSubPaths=true": "/bucket",
-  "/namespace/du?path=/vol:id/bucket:id/dir:id*&files=true&sortSubPaths=true": "/dir",
-  "/namespace/du?path=/dummyVolume/dummyBucket/dir:id&files=true&sortSubPaths=true": "/dir",
-  "/namespace/du?path=/dummyVolume/dummyBucket/dir:id/&files=true&sortSubPaths=true": "/dir",
-  "/namespace/du?path=/dummyVolume/dummyBucket/dummyDir&files=true&sortSubPaths=true": "/dir",
-  "/namespace/du?path=/vol:id/bucket:id/dir:id/key:id*&sortSubPaths=true": "/key",
-  "/namespace/du?path=/dummyVolume/dummyBucket/dummyDir/key:id*&sortSubPaths=true": "/key",
-  "/namespace/du?path=/vol:id/bucket:id/key:id*&sortSubPaths=true": "/key",
-  "/namespace/du?path=/dummyVolume/dummyBucket/key:id*&sortSubPaths=true": "/key",
-  "/namespace/du?path=/vol1/bucket1/empty&files=true&sortSubPaths=true": "/empty",
-  "/namespace/du?path=/clunky&files=true&sortSubpaths=true": "/clunky",
-  "/namespace/du?path=/*&replica=true": "/replica",
+  "/namespace/usage?path=/&files=true&sortSubpaths=true": "/root",
+  "/namespace/usage?path=/vol:id&files=true&sortSubPaths=true": "/volume",
+  "/namespace/usage?path=/vol:id/&files=true&sortSubPaths=true": "/volume",
+  "/namespace/usage?path=/dummyVolume&files=true&sortSubPaths=true": "/volume",
+  "/namespace/usage?path=/vol:id/bucket:id&files=true&sortSubPaths=true": "/bucket",
+  "/namespace/usage?path=/dummyVolume/bucket:id&files=true&sortSubPaths=true": "/bucket",
+  "/namespace/usage?path=/dummyVolume/bucket:id/&files=true&sortSubPaths=true": "/bucket",
+  "/namespace/usage?path=/dummyVolume/dummyBucket&files=true&sortSubPaths=true": "/bucket",
+  "/namespace/usage?path=/vol:id/bucket:id/dir:id*&files=true&sortSubPaths=true": "/dir",
+  "/namespace/usage?path=/dummyVolume/dummyBucket/dir:id&files=true&sortSubPaths=true": "/dir",
+  "/namespace/usage?path=/dummyVolume/dummyBucket/dir:id/&files=true&sortSubPaths=true": "/dir",
+  "/namespace/usage?path=/dummyVolume/dummyBucket/dummyDir&files=true&sortSubPaths=true": "/dir",
+  "/namespace/usage?path=/vol:id/bucket:id/dir:id/key:id*&sortSubPaths=true": "/key",
+  "/namespace/usage?path=/dummyVolume/dummyBucket/dummyDir/key:id*&sortSubPaths=true": "/key",
+  "/namespace/usage?path=/vol:id/bucket:id/key:id*&sortSubPaths=true": "/key",
+  "/namespace/usage?path=/dummyVolume/dummyBucket/key:id*&sortSubPaths=true": "/key",
+  "/namespace/usage?path=/vol1/bucket1/empty&files=true&sortSubPaths=true": "/empty",
+  "/namespace/usage?path=/clunky&files=true&sortSubpaths=true": "/clunky",
+  "/namespace/usage?path=/*&replica=true": "/replica",
   "/namespace/summary?path=*": "/metadata",
   "/namespace/quota?path=*": "/quota",
   "/task/status": "/taskStatus",
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/components/navBar/navBar.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/components/navBar/navBar.tsx
index 51a6c67f4e65..0957f059d01d 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/components/navBar/navBar.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/components/navBar/navBar.tsx
@@ -143,7 +143,7 @@ class NavBar extends React.Component<INavBarProps> {
     ), (
       <Menu.Item key='/DiskUsage'
         icon={<PieChartOutlined />}>
-        <span>Disk Usage</span>
+        <span>Namespace Usage</span>
         <Link to='/DiskUsage' />
       </Menu.Item>
     ), (
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/constants/breadcrumbs.constants.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/constants/breadcrumbs.constants.tsx
index a9f7a53eda44..3debe0efa2af 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/constants/breadcrumbs.constants.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/constants/breadcrumbs.constants.tsx
@@ -29,7 +29,7 @@ export const breadcrumbNameMap: IBreadcrumbNameMap = {
   '/MissingContainers': 'Missing Containers',
   '/Containers': 'Containers',
   '/Insights': 'Insights',
-  '/DiskUsage': 'Disk Usage',
+  '/NamespaceUsage': 'Namespace Usage',
   '/Heatmap': 'Heatmap',
   '/Om': 'Om'
 };
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/duMetadata/duMetadata.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/duMetadata/duMetadata.tsx
index 609b768aec5f..8f9ca632c109 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/duMetadata/duMetadata.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/duMetadata/duMetadata.tsx
@@ -270,7 +270,7 @@ const DUMetadata: React.FC<MetadataProps> = ({
         // If the entity is a Key then fetch the Key metadata only
         if (summaryResponse.type === 'KEY') {
           const { request: metadataRequest, controller: metadataNewController } = AxiosGetHelper(
-            `/api/v1/namespace/du?path=${path}&replica=true`,
+            `/api/v1/namespace/usage?path=${path}&replica=true`,
             keyMetadataSummarySignal.current
           );
           keyMetadataSummarySignal.current = metadataNewController;
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/navBar/navBar.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/navBar/navBar.tsx
index 1dd1ede48db4..03341fd9cd88 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/navBar/navBar.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/components/navBar/navBar.tsx
@@ -134,7 +134,7 @@ const NavBar: React.FC<NavBarProps> = ({
   ), (
     <Menu.Item key='/DiskUsage'
       icon={<PieChartOutlined />}>
-      <span>Disk Usage</span>
+      <span>Namespace Usage</span>
       <Link to='/DiskUsage' />
     </Menu.Item>
   ), (
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/constants/breadcrumbs.constants.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/constants/breadcrumbs.constants.tsx
index 807a68cc8d25..69e904f3df7b 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/constants/breadcrumbs.constants.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/constants/breadcrumbs.constants.tsx
@@ -28,7 +28,7 @@ export const breadcrumbNameMap: BreadcrumbNameMap = {
   '/Pipelines': 'Pipelines',
   '/Containers': 'Containers',
   '/Insights': 'Insights',
-  '/DiskUsage': 'Disk Usage',
+  '/NamespaceUsage': 'Namespace Usage',
   '/Heatmap': 'Heatmap',
   '/Om': 'OM DB Insights'
 };
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/pages/diskUsage/diskUsage.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/pages/diskUsage/diskUsage.tsx
index ee6f8c6c6c50..b826ea469cea 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/pages/diskUsage/diskUsage.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/v2/pages/diskUsage/diskUsage.tsx
@@ -63,7 +63,7 @@ const DiskUsage: React.FC<{}> = () => {
   function loadData(path: string) {
     setLoading(true);
     const { request, controller } = AxiosGetHelper(
-      `/api/v1/namespace/du?path=${path}&files=true&sortSubPaths=true`,
+      `/api/v1/namespace/usage?path=${path}&files=true&sortSubPaths=true`,
       cancelPieSignal.current
     );
     cancelPieSignal.current = controller;
@@ -101,7 +101,7 @@ const DiskUsage: React.FC<{}> = () => {
   return (
     <>
       <div className='page-header-v2'>
-        Disk Usage
+        Namespace Usage
       </div>
       <div className='data-container'>
         <Alert
@@ -123,7 +123,7 @@ const DiskUsage: React.FC<{}> = () => {
               subPaths={duResponse.subPaths}
               updateHandler={loadData} />
             <Tooltip
-              title="Click to reload Disk Usage data">
+              title="Click to reload Namespace Usage data">
               <Button
                 type='primary'
                 icon={<ReloadOutlined />}
@@ -154,4 +154,4 @@ const DiskUsage: React.FC<{}> = () => {
   );
 }
 
-export default DiskUsage;
\ No newline at end of file
+export default DiskUsage;
diff --git a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/views/diskUsage/diskUsage.tsx b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/views/diskUsage/diskUsage.tsx
index 19f4972c66ca..039054593204 100644
--- a/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/views/diskUsage/diskUsage.tsx
+++ b/hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/src/views/diskUsage/diskUsage.tsx
@@ -156,7 +156,7 @@ export class DiskUsage extends React.Component<Record<string, object>, IDUState>
     this.setState({
       isLoading: true
     });
-    const duEndpoint = `/api/v1/namespace/du?path=${path}&files=true&sortSubPaths=true`;
+    const duEndpoint = `/api/v1/namespace/usage?path=${path}&files=true&sortSubPaths=true`;
     const { request, controller } = AxiosGetHelper(duEndpoint, cancelPieSignal)
     cancelPieSignal = controller;
     request.then(response => {
@@ -323,7 +323,7 @@ export class DiskUsage extends React.Component<Record<string, object>, IDUState>
 
       if (summaryResponse.status !== 'INITIALIZING' && summaryResponse.status !== 'PATH_NOT_FOUND') {
         if (summaryResponse.type === 'KEY') {
-          const keyEndpoint = `/api/v1/namespace/du?path=${path}&replica=true`;
+          const keyEndpoint = `/api/v1/namespace/usage?path=${path}&replica=true`;
           const { request: metadataRequest, controller: metadataNewController } = AxiosGetHelper(keyEndpoint, cancelKeyMetadataSignal);
           cancelKeyMetadataSignal = metadataNewController;
           metadataRequest.then(response => {
@@ -572,7 +572,7 @@ export class DiskUsage extends React.Component<Record<string, object>, IDUState>
 
     const eChartsOptions = {
       title: {
-        text: `Disk Usage for ${returnPath} (Total Size: ${byteToSize(duResponse.size, 1)})`,
+        text: `Namespace Usage for ${returnPath} (Total Size: ${byteToSize(duResponse.size, 1)})`,
         left: 'center'
       },
       tooltip: {
@@ -613,7 +613,7 @@ export class DiskUsage extends React.Component<Record<string, object>, IDUState>
     return (
       <div className='du-container'>
         <div className='page-header'>
-          Disk Usage
+          Namespace Usage
         </div>
         <div className='content-div'>
           {isLoading ? <span><LoadingOutlined /> Loading...</span> : (
@@ -683,7 +683,7 @@ export class DiskUsage extends React.Component<Record<string, object>, IDUState>
                   </div>
                   :
                   <div style={{ height: 800 }} className='metadatainformation'><br />
-                    This object is empty. Add files to it to see a visualization on disk usage.{' '}<br />
+                    This object is empty. Add files to it to see a visualization on namespace usage.{' '}<br />
                     You can also view its metadata details by clicking the top right button.
                   </div>}
                 <DetailPanel path={returnPath} keys={panelKeys} values={panelValues} visible={showPanel} />

From 94d83457c84dda09cec704d48d0e6a18ca3d3402 Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Fri, 6 Jun 2025 16:57:06 +0530
Subject: [PATCH 2/8] Fixed some robot tests and DiskUsageSubcommand

---
 hadoop-hdds/docs/content/interface/ReconApi.md                | 2 +-
 hadoop-hdds/docs/content/interface/ReconApi.zh.md             | 4 ++--
 .../themes/ozonedoc/static/swagger-resources/recon-api.yaml   | 2 +-
 .../hadoop/ozone/admin/nssummary/DiskUsageSubCommand.java     | 2 +-
 .../dist/src/main/smoketest/recon/recon-nssummary.robot       | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/hadoop-hdds/docs/content/interface/ReconApi.md b/hadoop-hdds/docs/content/interface/ReconApi.md
index d047ba0a6568..e2df65d168b6 100644
--- a/hadoop-hdds/docs/content/interface/ReconApi.md
+++ b/hadoop-hdds/docs/content/interface/ReconApi.md
@@ -638,7 +638,7 @@ total size of keys directly under the path as `sizeDirectKey`, and returns
 
 `status` is `OK` if path exists, `PATH_NOT_FOUND` otherwise.
 
-Example: /api/v1/namespace/du?path=/vol1/bucket1&files=true&replica=true
+Example: /api/v1/namespace/usage?path=/vol1/bucket1&files=true&replica=true
 ```json
     {
       "status": OK,
diff --git a/hadoop-hdds/docs/content/interface/ReconApi.zh.md b/hadoop-hdds/docs/content/interface/ReconApi.zh.md
index 586fef16b2ff..85358d587598 100644
--- a/hadoop-hdds/docs/content/interface/ReconApi.zh.md
+++ b/hadoop-hdds/docs/content/interface/ReconApi.zh.md
@@ -582,7 +582,7 @@ Recon API v1 是一组 HTTP 端点，可以帮助您了解 Ozone 集群的当前
 
 如果任何 `num` 字段为 `-1`，则该路径请求不适用于该实体类型。
 
-### GET /api/v1/namespace/du
+### GET /api/v1/namespace/usage
 
 **参数**
 
@@ -605,7 +605,7 @@ Recon API v1 是一组 HTTP 端点，可以帮助您了解 Ozone 集群的当前
 
 如果路径存在，则 `status` 为 `OK`，否则为 `PATH_NOT_FOUND`。
 
-示例: /api/v1/namespace/du?path=/vol1/bucket1&files=true&replica=true
+示例: /api/v1/namespace/usage?path=/vol1/bucket1&files=true&replica=true
 ```json
     {
       "status": OK,
diff --git a/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml b/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
index 3e73bfdddd41..964efb87affd 100644
--- a/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
+++ b/hadoop-hdds/docs/themes/ozonedoc/static/swagger-resources/recon-api.yaml
@@ -573,7 +573,7 @@ paths:
           description: |
             Successful operation<br>
             #### **Note**:
-            #### The below example response is for the sample endpoint: **namespace/du?path=/vol1/bucket1&files=true&replica=true**
+            #### The below example response is for the sample endpoint: **namespace/usage?path=/vol1/bucket1&files=true&replica=true**
             #### status can be either **OK** if path exists else **PATH_NOT_FOUND**
             #### If files is set to **false**, sub-path **/vol1/bucket1/key1-1 is omitted**.
             #### If replica is set to **false**, **sizeWithReplica returns -1**.
diff --git a/hadoop-ozone/cli-admin/src/main/java/org/apache/hadoop/ozone/admin/nssummary/DiskUsageSubCommand.java b/hadoop-ozone/cli-admin/src/main/java/org/apache/hadoop/ozone/admin/nssummary/DiskUsageSubCommand.java
index 6b85576b1e1c..1c4039be18e1 100644
--- a/hadoop-ozone/cli-admin/src/main/java/org/apache/hadoop/ozone/admin/nssummary/DiskUsageSubCommand.java
+++ b/hadoop-ozone/cli-admin/src/main/java/org/apache/hadoop/ozone/admin/nssummary/DiskUsageSubCommand.java
@@ -73,7 +73,7 @@ public class DiskUsageSubCommand implements Callable {
   @CommandLine.Mixin
   private PrefixFilterOption prefixFilter;
 
-  private static final String ENDPOINT = "/api/v1/namespace/du";
+  private static final String ENDPOINT = "/api/v1/namespace/usage";
 
   // For text alignment
   private static final String SIZE_HEADER = "Size";
diff --git a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
index 86ca25e219ff..41dc28ae93f4 100644
--- a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
+++ b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
@@ -26,7 +26,7 @@ ${ENDPOINT_URL}             http://recon:9888
 ${API_ENDPOINT_URL}         ${ENDPOINT_URL}/api/v1
 ${ADMIN_NAMESPACE_URL}      ${API_ENDPOINT_URL}/namespace
 ${SUMMARY_URL}              ${ADMIN_NAMESPACE_URL}/summary
-${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/du
+${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/usage
 ${QUOTA_USAGE_URL}          ${ADMIN_NAMESPACE_URL}/quota
 ${FILE_SIZE_DIST_URL}       ${ADMIN_NAMESPACE_URL}/dist
 ${BUCKET_LAYOUT}            FILE_SYSTEM_OPTIMIZED
@@ -145,4 +145,4 @@ Check Recon Namespace Bucket Quota Usage
     Wait For Summary      ${QUOTA_USAGE_URL}?path=/${VOLUME}/${BUCKET}   \"used\"
 
 Check Recon Namespace File Size Distribution Root
-    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
\ No newline at end of file
+    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"

From 735886c3f34ade0d92c04392e54de518aa4477c3 Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Mon, 9 Jun 2025 17:40:34 +0530
Subject: [PATCH 3/8] Address unnecessary blank space at the end of robot test
 file


From f0c6209607eae69f391facb9db886c1394eda7be Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Mon, 9 Jun 2025 18:04:25 +0530
Subject: [PATCH 4/8] Update recon-nssummary.robot


From eb1da4e6fcde98f8d86002d9e64ab826147ea594 Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Tue, 10 Jun 2025 11:01:22 +0530
Subject: [PATCH 5/8] Revert recon nssummary robot test

---
 .../dist/src/main/smoketest/recon/recon-nssummary.robot       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
index 41dc28ae93f4..86ca25e219ff 100644
--- a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
+++ b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
@@ -26,7 +26,7 @@ ${ENDPOINT_URL}             http://recon:9888
 ${API_ENDPOINT_URL}         ${ENDPOINT_URL}/api/v1
 ${ADMIN_NAMESPACE_URL}      ${API_ENDPOINT_URL}/namespace
 ${SUMMARY_URL}              ${ADMIN_NAMESPACE_URL}/summary
-${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/usage
+${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/du
 ${QUOTA_USAGE_URL}          ${ADMIN_NAMESPACE_URL}/quota
 ${FILE_SIZE_DIST_URL}       ${ADMIN_NAMESPACE_URL}/dist
 ${BUCKET_LAYOUT}            FILE_SYSTEM_OPTIMIZED
@@ -145,4 +145,4 @@ Check Recon Namespace Bucket Quota Usage
     Wait For Summary      ${QUOTA_USAGE_URL}?path=/${VOLUME}/${BUCKET}   \"used\"
 
 Check Recon Namespace File Size Distribution Root
-    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
+    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
\ No newline at end of file

From ce5f28f4bd4ab81afb72ddd8bb01dba51efb1445 Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Tue, 10 Jun 2025 11:02:44 +0530
Subject: [PATCH 6/8] Edit Recon robot test to fix endpoint

---
 .../dist/src/main/smoketest/recon/recon-nssummary.robot       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
index 86ca25e219ff..41dc28ae93f4 100644
--- a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
+++ b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
@@ -26,7 +26,7 @@ ${ENDPOINT_URL}             http://recon:9888
 ${API_ENDPOINT_URL}         ${ENDPOINT_URL}/api/v1
 ${ADMIN_NAMESPACE_URL}      ${API_ENDPOINT_URL}/namespace
 ${SUMMARY_URL}              ${ADMIN_NAMESPACE_URL}/summary
-${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/du
+${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/usage
 ${QUOTA_USAGE_URL}          ${ADMIN_NAMESPACE_URL}/quota
 ${FILE_SIZE_DIST_URL}       ${ADMIN_NAMESPACE_URL}/dist
 ${BUCKET_LAYOUT}            FILE_SYSTEM_OPTIMIZED
@@ -145,4 +145,4 @@ Check Recon Namespace Bucket Quota Usage
     Wait For Summary      ${QUOTA_USAGE_URL}?path=/${VOLUME}/${BUCKET}   \"used\"
 
 Check Recon Namespace File Size Distribution Root
-    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
\ No newline at end of file
+    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"

From 339b38748ee4b3905d05d0e998ec2b891b4fb211 Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Tue, 10 Jun 2025 11:17:31 +0530
Subject: [PATCH 7/8] Revert recon nssummary robot test

---
 .../dist/src/main/smoketest/recon/recon-nssummary.robot       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
index 41dc28ae93f4..86ca25e219ff 100644
--- a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
+++ b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
@@ -26,7 +26,7 @@ ${ENDPOINT_URL}             http://recon:9888
 ${API_ENDPOINT_URL}         ${ENDPOINT_URL}/api/v1
 ${ADMIN_NAMESPACE_URL}      ${API_ENDPOINT_URL}/namespace
 ${SUMMARY_URL}              ${ADMIN_NAMESPACE_URL}/summary
-${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/usage
+${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/du
 ${QUOTA_USAGE_URL}          ${ADMIN_NAMESPACE_URL}/quota
 ${FILE_SIZE_DIST_URL}       ${ADMIN_NAMESPACE_URL}/dist
 ${BUCKET_LAYOUT}            FILE_SYSTEM_OPTIMIZED
@@ -145,4 +145,4 @@ Check Recon Namespace Bucket Quota Usage
     Wait For Summary      ${QUOTA_USAGE_URL}?path=/${VOLUME}/${BUCKET}   \"used\"
 
 Check Recon Namespace File Size Distribution Root
-    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
+    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
\ No newline at end of file

From 1e479ce965a2ef089f459bce193e28b9de4918be Mon Sep 17 00:00:00 2001
From: Abhishek Pal <pal.abhishek03012001@gmail.com>
Date: Tue, 10 Jun 2025 11:19:56 +0530
Subject: [PATCH 8/8] Fix DU path on robot test

---
 .../dist/src/main/smoketest/recon/recon-nssummary.robot       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
index 86ca25e219ff..41dc28ae93f4 100644
--- a/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
+++ b/hadoop-ozone/dist/src/main/smoketest/recon/recon-nssummary.robot
@@ -26,7 +26,7 @@ ${ENDPOINT_URL}             http://recon:9888
 ${API_ENDPOINT_URL}         ${ENDPOINT_URL}/api/v1
 ${ADMIN_NAMESPACE_URL}      ${API_ENDPOINT_URL}/namespace
 ${SUMMARY_URL}              ${ADMIN_NAMESPACE_URL}/summary
-${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/du
+${DISK_USAGE_URL}           ${ADMIN_NAMESPACE_URL}/usage
 ${QUOTA_USAGE_URL}          ${ADMIN_NAMESPACE_URL}/quota
 ${FILE_SIZE_DIST_URL}       ${ADMIN_NAMESPACE_URL}/dist
 ${BUCKET_LAYOUT}            FILE_SYSTEM_OPTIMIZED
@@ -145,4 +145,4 @@ Check Recon Namespace Bucket Quota Usage
     Wait For Summary      ${QUOTA_USAGE_URL}?path=/${VOLUME}/${BUCKET}   \"used\"
 
 Check Recon Namespace File Size Distribution Root
-    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"
\ No newline at end of file
+    Wait For Summary      ${FILE_SIZE_DIST_URL}?path=/                   \"dist\"