[jira] [Created] (SYSTEMML-1697) Reading multi-part files object stores w/o existing directory

["Matthias Boehm (JIRA)" <ji...@apache.org>]

Matthias Boehm created SYSTEMML-1697:
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             Summary: Reading multi-part files object stores w/o existing directory
                 Key: SYSTEMML-1697
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1697
             Project: SystemML
          Issue Type: Task
            Reporter: Matthias Boehm


Assume a multi-part binary matrix written to an object store. As the object store only emulates a directory structure, the parent directory does not exist. Accordingly, our binary block matrix readers (which directly read from sequence files instead of record readers) fail because the check for {{isDirectory}} returns false. In order to fix this, we would need to be aware of this issues and handle it when ran against object store file schemes. Similarly, {{listStatus}} also returns the meta data file which has the same prefix as the created "directory" and needs to be filtered out.



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