apache / apache/beam

Support MapState in DataflowRunner

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dataflow new feature P3 runners
Dominant language
Java
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Description

Imported from Jira [BEAM-1474](https://issues.apache.org/jira/browse/BEAM-1474). Original Jira may contain additional context.
Reported by: kenn.

Contributor guide

Open the contributing guide

Research direction

Review the linked BEAM-1474 Jira issue for the missing requirements, then inspect the DataflowRunner state-handling entry points. Determine the expected MapState behavior and locate the relevant tests before making changes; done means the documented support works in the DataflowRunner test coverage.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering, distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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