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From "Jingsong Lee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BEAM-2486) Should throws some useful messages when statefulParDo use non-KV input
Date Wed, 21 Jun 2017 02:30:00 GMT
Jingsong Lee created BEAM-2486:
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             Summary: Should throws some useful messages when statefulParDo use non-KV input
                 Key: BEAM-2486
                 URL: https://issues.apache.org/jira/browse/BEAM-2486
             Project: Beam
          Issue Type: Improvement
          Components: runner-core, runner-flink
            Reporter: Jingsong Lee


Now Flink runner will throws a ClassCastException without detail messages when a statefulParDo
use non-KV input. It is not easy for users to find errors and causes. 



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