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https://issues.apache.org/jira/browse/BEAM-14429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yichi Zhang updated BEAM-14429:
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Summary: SyntheticUnboundedSource(with SDF) produce duplicate records when
split with DEFAULT_DESIRED_NUM_SPLITS (was: SyntheticUnboundedSource(with SDF)
produce wrong number of records when initial split is larger than 1)
> SyntheticUnboundedSource(with SDF) produce duplicate records when split with
> DEFAULT_DESIRED_NUM_SPLITS
> -------------------------------------------------------------------------------------------------------
>
> Key: BEAM-14429
> URL: https://issues.apache.org/jira/browse/BEAM-14429
> Project: Beam
> Issue Type: Bug
> Components: io-common
> Reporter: Yichi Zhang
> Priority: P2
> Time Spent: 2h
> Remaining Estimate: 0h
>
> With the default 20 split, the num records produced by
> Read.from(SyntheticUnboundedSource) is always larger than the numRecords
> specified. the more splits the more actual number records produced is off.
> And the Read step tends to take longer time with more splits.
>
> The issue is manifested with java LoadTests on dataflow runner v2.
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