[jira] [Commented] (HDFS-7805) NameNode recovery prompt should be printed on console

[surendra singh lilhore (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HDFS-7805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325555#comment-14325555
 ] 

surendra singh lilhore commented on HDFS-7805:
----------------------------------------------

Thanks [~cmccabe] for comment

You are right, all log should be in log file only.
But I want to print only prompt message where we will wait for user input

For example we are doing in {{ToolRunner.confirmPrompt()}}.

{code}
 while (true) {
      System.err.print(prompt + " (Y or N) ");
      StringBuilder responseBuilder = new StringBuilder();
      while (true) {
        int c = System.in.read();
        if (c == -1 || c == '\r' || c == '\n') {
          break;
        }
        responseBuilder.append((char)c);
      }
{code}

here we are waiting for user input using {{System.in.read()}}

If prompt message not printed one console then user not knows what input he 
needs to give.
Same I want for {{MetaRecoveryContext.ask()}} prompt message.

Please give your suggestion.
Thanks in advance for your suggestions.


> NameNode recovery prompt should be printed on console
> -----------------------------------------------------
>
>                 Key: HDFS-7805
>                 URL: https://issues.apache.org/jira/browse/HDFS-7805
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.6.0
>            Reporter: surendra singh lilhore
>            Assignee: surendra singh lilhore
>         Attachments: HDFS-7805.patch
>
>
> In my cluster root logger is not console, so when I run namenode recovery 
> tool MetaRecoveryContext.java prompt message is logged in log file.
> Actually is should be display on console.
> Currently it is like this
> {code}
> LOG.info(prompt);
> {code}
> It should be 
> {code}
> System.err.print(prompt);
> {code}
> NameNode recovery prompt should be printed on console



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