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https://issues.apache.org/jira/browse/SPARK-10158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981532#comment-14981532
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Sean Owen commented on SPARK-10158:
-----------------------------------
The exception is basically "can't cast a Long to Int" which seems reasonably
good as a clue. Catching the exception in this case and only this seems like
too much of a hack even if it's small. What about vetting the input in Pyspark
more explicitly to start rather than waiting for the error? or just punting on
this.
> ALS should print better errors when given Long IDs
> --------------------------------------------------
>
> Key: SPARK-10158
> URL: https://issues.apache.org/jira/browse/SPARK-10158
> Project: Spark
> Issue Type: Improvement
> Components: ML, MLlib, PySpark
> Reporter: Joseph K. Bradley
> Priority: Minor
>
> See [SPARK-10115] for the very confusing messages you get when you try to use
> ALS with Long IDs. We should catch and identify these errors and print
> meaningful error messages.
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