Wei-Chiu Chuang created HDFS-16854:
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             Summary: TestDFSIO to support non-default file system
                 Key: HDFS-16854
                 URL: https://issues.apache.org/jira/browse/HDFS-16854
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Wei-Chiu Chuang


TestDFSIO expects a parameter {{-Dtest.build.data=}} which is where the data is 
located. Only paths on the default file system is supported. Trying to run it 
against other file systems, such as Ozone, throws an exception.

It can be worked around by specifying {{-Dfs.defaultFS=}} but it would be even 
nice to support non-default file systems out of box, because no one would know 
this trick unless she looks at the code.



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