[jira] [Created] (FLINK-2214) ALS predict and empiricalRisk function can cause hash join function to exceed maximum number of recursions

[Till Rohrmann (JIRA)]

Till Rohrmann created FLINK-2214:
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             Summary: ALS predict and empiricalRisk function can cause hash 
join function to exceed maximum number of recursions
                 Key: FLINK-2214
                 URL: https://issues.apache.org/jira/browse/FLINK-2214
             Project: Flink
          Issue Type: Bug
          Components: Machine Learning Library
            Reporter: Till Rohrmann
            Priority: Minor


Using the {{predict}} or {{empiricalRisk}} function of the {{ALS}} class can 
cause the Flink job to fail with a {{Hash join exceeded maximum number of
recursions}} exceptions. This is due to a wrong build side for the hash join 
operation.

This bug should be fixable by setting the correct join hints. 



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