[jira] [Created] (BEAM-373) CoGbkResult will crash after 10,000 elements on any runner that does not provide a Reiterator

["Kenneth Knowles (JIRA)" <ji...@apache.org>]

Kenneth Knowles created BEAM-373:
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             Summary: CoGbkResult will crash after 10,000 elements on any runner that does not provide a Reiterator
                 Key: BEAM-373
                 URL: https://issues.apache.org/jira/browse/BEAM-373
             Project: Beam
          Issue Type: Bug
          Components: sdk-java-core
            Reporter: Kenneth Knowles
            Assignee: Kenneth Knowles
            Priority: Critical


Unless I am reading this wrong, there is a hardcoded downcast to {{Reiterator}} after 10,000 elements. This appears to be an assumption built in from the early days. (discovered while trying to decide whether {{Reiterator}} should live in the SDK or runner-core)

I will throw together a test shortly to confirm.

https://github.com/apache/incubator-beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/join/CoGbkResult.java#L122



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