apache / apache/beam

Checkpoint support in Beam

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beam-model improvement new feature P3
Dominant language
Java
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Description

Beam could support checkpoints - similar to:
* flink's snapshots
* scalding's checkpoints

Checkpoint should provides a simple mechanism to read and write intermediate results. It would be useful for debugging one part of a long flow, when you would otherwise have to run many steps to get to the one you care about.

Imported from Jira [BEAM-1458](https://issues.apache.org/jira/browse/BEAM-1458). Original Jira may contain additional context.
Reported by: ravwojdyla.

Contributor guide

Open the contributing guide

Research direction

No files, tests, or entry points are named. Start by reviewing the original Jira issue BEAM-1458 and the referenced Flink snapshots and Scalding checkpoints, then determine the intended read/write behavior for intermediate results and the Beam components it would affect. Done means an agreed checkpoint design with clear scope and validation criteria.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering
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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