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

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

     [ https://issues.apache.org/jira/browse/BEAM-373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles resolved BEAM-373.
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    Resolution: Invalid

> 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: Thomas Groh
>            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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