Ben Sidhom created BEAM-4231:
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Summary: Runner utility for Coder instantiation
Key: BEAM-4231
URL: https://issues.apache.org/jira/browse/BEAM-4231
Project: Beam
Issue Type: Bug
Components: runner-core
Reporter: Ben Sidhom
Assignee: Ben Sidhom
Portable runners need to instantiate coders for communicating with SDK
harnesses in a consistent way. They cannot simply instantiate coders as defined
by PCollections because some component coders may only be known to specific
SDKs. Unknown coders should be length-prefixed; the underlying elements should
only be exposed to runners as byte strings.
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