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https://issues.apache.org/jira/browse/BEAM-9423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17076227#comment-17076227
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Maximilian Michels commented on BEAM-9423:
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Yes, you can assign stable names like this:
{code:Java}
Pipeline p = Pipeline.create();
p.apply("myStableUniqueName", ...).apply("myothername", ...);
{code}
The chaining (how Flink calls fusioning) generally does not effect the state
restore; every operator in the chain checkpoints its state independently.
> Re-Add the stop button to the Flink web interface for pipelines
> ---------------------------------------------------------------
>
> Key: BEAM-9423
> URL: https://issues.apache.org/jira/browse/BEAM-9423
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.19.0, 2.20.0
> Reporter: Tobias Kaymak
> Assignee: Maximilian Michels
> Priority: Major
> Attachments: Screenshot 2020-04-06 at 11.40.28.png
>
>
> The Flink 1.9/1.10 web interface is missing the Stop button for a streaming
> pipeline, which is pretty useful to drain a streaming pipeline.
> For example to be able to cleanly shutdown a pipeline when a feature is going
> to be released tomorrow, and the pipeline processing code should be updated
> before, without the overhead of re-reading the complete past. Taking a
> snapshot uses the current representation of the Beam code as a Flink job, but
> what if one wants to update the Beam code and thus the pipeline code without
> the need to reprocess the whole history? Moreover, a stop button is very
> useful when a new Flink version is going to be rolled out: then one can drain
> all pipelines, rollout a new Flink version and start them at the point where
> they left off with their last committed offset in Kafka.
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