[jira] [Created] (REEF-1783) Run two unmanaged REEF applications from one REEF driver

["Sergiy Matusevych (JIRA)" <ji...@apache.org>]

Sergiy Matusevych created REEF-1783:
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             Summary: Run two unmanaged REEF applications from one REEF driver
                 Key: REEF-1783
                 URL: https://issues.apache.org/jira/browse/REEF-1783
             Project: REEF
          Issue Type: Test
          Components: REEF Driver, REEF Runtime YARN
         Environment: YARN 2.7.3+
            Reporter: Sergiy Matusevych
            Assignee: Sergiy Matusevych


We need to make sure that on completion unmanaged REEF driver cleans up after itself, and closes all resources it allocates -- _but not more._

[REEF-1782] describes the situation when inner (unmanaged) REEF application apparently closes some resources that actually belong to the host driver. We need to make sure that upon unmanaged app completion, host driver is still fully functioning and can launch another unmanaged application.

To that end, we need to implement an application similar to the existing REEF-on-REEF example (see [REEF-1667]), but running *two* unmanaged applications one after another. That can be achieved with very little effort by refactoring the existing code of the {{ReefOnReefDriver}} class.



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