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From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-1164) Uninformative error message when having an identity iteration with the Scala API
Date Mon, 13 Oct 2014 22:31:33 GMT
Till Rohrmann created FLINK-1164:
------------------------------------

             Summary: Uninformative error message when having an identity iteration with the
Scala API
                 Key: FLINK-1164
                 URL: https://issues.apache.org/jira/browse/FLINK-1164
             Project: Flink
          Issue Type: Bug
            Reporter: Till Rohrmann


If one implements an identity mapper with the Scala API, then one gets a strange error message
which might be very confusing for the user: 

Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: java.lang.Exception:
Failed to deploy the task PartialSolution (BulkIteration (Bulk Iteration)) (1/8) - execution
#0 to slot SubSlot 1 (0bbe935796159bfe18abca6f1b32769a (0) - ALLOCATED/ALIVE): java.lang.Exception:
The number of writers created in 'registerInputOutput()' is different than the number of connected
outgoing edges in the job graph.



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