smengcl opened a new pull request #584: HDDS-3054. 
OzoneFileStatus#getModificationTime should return actual directory modification 
time when its OmKeyInfo is available
URL: https://github.com/apache/hadoop-ozone/pull/584
 
 
   ## What changes were proposed in this pull request?
   
   As of current implementation, getModificationTime() always returns "fake" 
modification time (current time) for directory due to the reason that a 
directory in Ozone might be faked from a file key.
   
   But, there are cases where real directory key exists in OzoneBucket. For 
example when user calls fs.mkdirs(directory). In this case, a reasonable thing 
to do would be getting the modification time from the OmInfoKey, rather than 
faking it.
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-3054
   
   ## How was this patch tested?
   
   So far passed manual test.
   
   Will add a integration test case later.

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