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Posted to dev@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2018/03/17 22:29:00 UTC

[jira] [Created] (DRILL-6267) Revise DoY DfsFacade class to use DrillFileSystem

Paul Rogers created DRILL-6267:
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             Summary: Revise DoY DfsFacade class to use DrillFileSystem
                 Key: DRILL-6267
                 URL: https://issues.apache.org/jira/browse/DRILL-6267
             Project: Apache Drill
          Issue Type: Improvement
    Affects Versions: 1.13.0
            Reporter: Paul Rogers
             Fix For: 1.14.0


The Drill-on-YARN (DoY) client code has a class called {{DfsFacade}} which abstracts away some of the YARN-related aspects of HDFS. It primarily focus on the mind-numbing details of localizing files in YARN.

Rather than this being a stand-alone class, it should use the {{DrillFileSystem}} class in its implementation. (Don't extend {{DrillFileSystem}}, doing so will widen the API and confuse the fact that this particular class is only for YARN localization.) Use {{DrillFileSystem}} for the basic operations rather than calling HDFS directly.



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