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ASF GitHub Bot commented on FLINK-2214: --------------------------------------- Github user tillrohrmann commented on the pull request: https://github.com/apache/flink/pull/844#issuecomment-114403301 It's not a problem with the joins of the loop but instead with the single join of the empirical risk and prediction calculation. > 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 > Labels: ML > > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)