[GitHub] sanha opened a new pull request #189: [NEMO-327] Fix skew handling for multi shuffle edge receiver

[GitBox <gi...@apache.org>]

sanha opened a new pull request #189: [NEMO-327] Fix skew handling for multi shuffle edge receiver
URL: https://github.com/apache/incubator-nemo/pull/189
 
 
   JIRA: [NEMO-327: Fix skew handling for multi shuffle edge receive](https://issues.apache.org/jira/projects/NEMO/issues/NEMO-327)
   
   **Major changes:**
   - For the case that a vertex receives multiple shuffle edges, makes `DataSkewPolicy` collect metric data for the shuffle edges in a single metric aggregation vertex and optimize the edges at once.
   
   **Minor changes to note:**
   - Makes runtime pass receive multiple target edges.
   
   **Tests for the changes:**
   - Adds an integration test with the data skew policy for `NetworkTraceAnalysis` that has a join.
   
   **Other comments:**
   - N/A.
   
   Closes #189
   

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