Alejandro Abdelnur created HDFS-4502:
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             Summary: WebHdfsFileSystem handling of ifile field breaks 
compatibility and breaks HttpFS
                 Key: HDFS-4502
                 URL: https://issues.apache.org/jira/browse/HDFS-4502
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: webhdfs
    Affects Versions: 3.0.0
            Reporter: Alejandro Abdelnur
            Priority: Blocker


HDFS-4340 introduced a new field {{fileId}} in WebHDFS FileStatus JSON 
representation.

There are a two issues with this:

* This is changing the WebHDFS REST API, this has not been documented
* WebHdfsFileSystem should not fail when that field is not present (This is the 
case when using HttpFS against a FS implementation -other than HDFS- which does 
not handle fileId)

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