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From "Bill Neubauer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (BEAM-3473) Go SDK: GroupByKey outputs cause the SDK harness to panic
Date Fri, 12 Jan 2018 19:01:01 GMT
Bill Neubauer created BEAM-3473:
-----------------------------------

             Summary: Go SDK: GroupByKey outputs cause the SDK harness to panic
                 Key: BEAM-3473
                 URL: https://issues.apache.org/jira/browse/BEAM-3473
             Project: Beam
          Issue Type: Bug
          Components: sdk-go
            Reporter: Bill Neubauer
            Assignee: Bill Neubauer


https://github.com/apache/beam/blob/go-sdk/sdks/go/pkg/beam/core/runtime/exec/fn.go#L81

The call to makeIter returns the ReusableInput, but Init() has not been called on it. While
this will be called for side inputs, this isn't happening in the main input case, and causes
a panic when the function is called from user code.



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