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https://issues.apache.org/jira/browse/BEAM-10308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17144591#comment-17144591
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Brian Hulette commented on BEAM-10308:
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Ah thanks Heejong that does look like it's solving the same problem in Java,
but just for coders. I think we'll need some similar logic in Java for
windowing strategies (which is what we're running into in BEAM-10143)
> Component id assignement is not consistent across PipelineContext instances
> ---------------------------------------------------------------------------
>
> Key: BEAM-10308
> URL: https://issues.apache.org/jira/browse/BEAM-10308
> Project: Beam
> Issue Type: Bug
> Components: cross-language, sdk-py-core
> Reporter: Brian Hulette
> Assignee: Brian Hulette
> Priority: P1
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The "unique ref" ids used in PipelineContext are generated on the fly, which
> can cause us to get a different id for the same component in different
> contexts.
> This becomes a problem when ExternalTransform is used, because it creates its
> own pipeline context for expansion. So its possible the component ids in the
> expansion request will actually refer to an entirely different component when
> the pipeline is finally assembled for execution.
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