[jira] [Created] (FLINK-8247) Support Hadoop-free variant of Flink on Mesos

[Shang Yuanchun (Jira)]

Eron Wright  created FLINK-8247:
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             Summary: Support Hadoop-free variant of Flink on Mesos
                 Key: FLINK-8247
                 URL: https://issues.apache.org/jira/browse/FLINK-8247
             Project: Flink
          Issue Type: Bug
          Components: Mesos
    Affects Versions: 1.4.0
            Reporter: Eron Wright


In Hadoop-free mode, Hadoop isn't on the classpath.  The Mesos job manager normally uses the Hadoop UserGroupInformation class to overlay a user context (`HADOOP_USER_NAME`) for the task managers.  

Detect the absence of Hadoop and skip over the `HadoopUserOverlay`, similar to the logic in `HadoopModuleFactory`.    This may require the introduction of an overlay factory.



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