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  1. Apache Nemo
  2. NEMO-349

PlanRewriter Unit Tests

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    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None

      Description

      Test that the PlanRewriter correctly enforces run-time IRDAG optimizations in the runtime (annotation/reshaping by RunTimePasses) through appropriate rewrites of executing PhysicalPlans.

      Two possible options for the test code (I am more leaning towards the former at the moment):

      • Simulate the execution of PhysicalPlans (i.e., mocked Scheduler with simulated task events)
        • Pro: Simpler test code, smaller scope, a variety of simulations (fine-grained control) possible
        • Con: Does not test Executor code
      • Actually execute PhysicalPlans with Executors
        • Pro: (Almost) Fully tests the compiler backend and the runtime
        • Con: May result in bloated test code, less control in execution steps 

      The tests should include

      • Run-time utility IRVertex insertion/deletion
      • Run-time IRVertex/IREdge annotations
      • Modifications to each category of ready/running/finished IRVertex objects

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              • Assignee:
                Unassigned
                Reporter:
                johnyangk John Yang
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