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https://issues.apache.org/jira/browse/BEAM-3525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16337796#comment-16337796
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ASF GitHub Bot commented on BEAM-3525:
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pgerv12 opened a new pull request #4478: [BEAM-3525] Remove unnecessary
serialization of PipelineOptions in TestPipeline in run()
URL: https://github.com/apache/beam/pull/4478
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This PR removes the serialization of PipelineOptions prematurely before the
TestPipeline is run (which creates a runner instance, which in turn uses
options to run the Beam application). Since this serialization occurs before
the selected runner has the chance to use/look at them, any options marked with
`JsonIgnore` do not survive -- leading to undesired behavior since
serialization is really only needed between job creation/submission vs runtime.
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> TestPipeline serializes PipelineOptions prematurely
> ---------------------------------------------------
>
> Key: BEAM-3525
> URL: https://issues.apache.org/jira/browse/BEAM-3525
> Project: Beam
> Issue Type: Bug
> Components: testing
> Affects Versions: 2.2.0
> Reporter: Paul Gerver
> Assignee: Paul Gerver
> Priority: Minor
>
> The TestPipeline in its run() method now serializes PipelineOptions and adds
> in TestValueProvider values before submitting the pipeline to run [1].
> This premature serialization can cause options marked with JsonIgnore
> annotations to be dropped before a runner has had a chance to see those
> parameters. For example, take the FlinkRunner options, if flinkMaster is
> marked with JsonIgnore because that information is only needed by the runner
> submitting the job and is not needed during runtime, tests will be run
> locally incorrectly instead of against the Flink cluster.
> [1]
> https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/testing/TestPipeline.java#L354
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