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https://issues.apache.org/jira/browse/HADOOP-17921?focusedWorklogId=656286&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-656286
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ASF GitHub Bot logged work on HADOOP-17921:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 28/Sep/21 17:56
            Start Date: 28/Sep/21 17:56
    Worklog Time Spent: 10m 
      Work Description: steveloughran commented on pull request #3463:
URL: https://github.com/apache/hadoop/pull/3463#issuecomment-929492216


   1. What was the FS playing up?  HDFS? 
   2. Given chris's feedback, I think we need to leave things as is.
   
   We have to consider exceptions to be part of that public API. Worse, 
sometimes the text message is part of that API. Distcp is sometimes wrapped by 
applications (hive,...) so they may be looking for the explicit exception type.


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

    Worklog Id:     (was: 656286)
    Time Spent: 1h 10m  (was: 1h)

> DistCp derives if XAttr is supported wrongly
> --------------------------------------------
>
>                 Key: HADOOP-17921
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17921
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Pravin Sinha
>            Assignee: Pravin Sinha
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> {color:#0033b3}public static void 
> {color}{color:#00627a}checkFileSystemXAttrSupport{color}({color:#000000}FileSystem
>  {color}fs)
>  {color:#0033b3}throws {color}{color:#000000}XAttrsNotSupportedException 
> {color}{
>  {color:#0033b3}try {color}{
>  fs.getXAttrs({color:#0033b3}new 
> {color}Path({color:#000000}Path{color}.{color:#871094}SEPARATOR{color}));
>  } {color:#0033b3}catch {color}({color:#000000}Exception {color}e) {
>  {color:#0033b3}throw new 
> {color}XAttrsNotSupportedException({color:#067d17}"XAttrs not supported for 
> file system: "
> {color} + fs.getUri());
>  }
> }
> IOExecption will also be treated as if Xattr is not supported, which would be 
> wrong.
>  



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