VicoWu edited a comment on issue #509: HBASE-22877 WebHDFS based export 
snapshot will fail if hfile is in archive directory
URL: https://github.com/apache/hbase/pull/509#issuecomment-525982956
 
 
   @shahrs87 
   Thanks for you comments;
   My current branch is a CDH version hadoop2.6.0-CDH5.16.1;
   I previously thought that the  hadoop2.6.0-CDH5.16.1; is totallly based on 
the apache hadoop 2..6.0, but from this case it seems not;
   This is my code of the `HDFSFileSystem.open() for `hadoop2.6.0-CDH5.16.1`:
   ```
     @Override
     public FSDataInputStream open(final Path f, final int bufferSize
         ) throws IOException {
       statistics.incrementReadOps(1);
       return new FSDataInputStream(new WebHdfsInputStream(f, bufferSize));
     }
   ```
   And I find the first occurrence for the `WebHdfsInputSteam.open()` method 
occurs in Apache hadoop 
https://github.com/apache/hadoop/commit/eda4dbbb7628ce336377d3ce5f26ecbe47d3fe3d
   It seems that they are already different from scratch;
   Maybe I should communicate with Cloudera ;
   Thanks again;
   
   

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