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https://issues.apache.org/jira/browse/HDFS-16048?focusedWorklogId=605681&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-605681
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ASF GitHub Bot logged work on HDFS-16048:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Jun/21 06:15
            Start Date: 03/Jun/21 06:15
    Worklog Time Spent: 10m 
      Work Description: tomscut commented on a change in pull request #3062:
URL: https://github.com/apache/hadoop/pull/3062#discussion_r644513026



##########
File path: 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NetworkTopologyServlet.java
##########
@@ -90,7 +90,7 @@ public void doGet(HttpServletRequest request, 
HttpServletResponse response)
    * @param leaves leaves nodes under base scope
    * @param format the response format
    */
-  public void printTopology(PrintStream stream, List<Node> leaves,
+  private void printTopology(PrintStream stream, List<Node> leaves,

Review comment:
       > Why not just override?
   
   Because the arguments of the two methods are a little different, I'll fix 
it. Thank you for pointing that out.




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 605681)
    Time Spent: 2h  (was: 1h 50m)

> RBF: Print network topology on the router web
> ---------------------------------------------
>
>                 Key: HDFS-16048
>                 URL: https://issues.apache.org/jira/browse/HDFS-16048
>             Project: Hadoop HDFS
>          Issue Type: Wish
>            Reporter: tomscut
>            Assignee: tomscut
>            Priority: Minor
>              Labels: pull-request-available
>         Attachments: topology-json.jpg, topology-text.jpg
>
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> In order to query the network topology information conveniently, we can print 
> it on the router web. It's related to HDFS-15970.



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