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https://issues.apache.org/jira/browse/BEAM-1458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16058773#comment-16058773
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Reuven Lax commented on BEAM-1458:
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Correct - I'm working on a doc for snapshot/update support for Beam. My
proposal is a bit more general than this as it includes the following addition.
Start a new (possibly different) pipeline from a checkpoint. This allows the
user to modify their code, possibly add new stages, and then resume that
pipeline from a checkpoint. This is a generalization of the "update" feature
that Dataflow has. It requires a compatibility check to ensure that the new
pipeline is compatible with the checkpoint.
> Checkpoint support in Beam
> --------------------------
>
> Key: BEAM-1458
> URL: https://issues.apache.org/jira/browse/BEAM-1458
> Project: Beam
> Issue Type: Improvement
> Components: beam-model
> Affects Versions: 0.5.0
> Reporter: Rafal Wojdyla
> Labels: features
>
> 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.
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