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https://issues.apache.org/jira/browse/BEAM-5184?focusedWorklogId=136990&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-136990
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ASF GitHub Bot logged work on BEAM-5184:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Aug/18 15:29
Start Date: 22/Aug/18 15:29
Worklog Time Spent: 10m
Work Description: lukecwik commented on issue #6257: [BEAM-5184] Multimap
side inputs with duplicate keys and values are being lost
URL: https://github.com/apache/beam/pull/6257#issuecomment-415074170
This seems to break Dataflow, it's side input handling is different.
The Jenkins logs for
org.apache.beam.sdk.transforms.ViewTest.testMultimapSideInputWithNonDeterministicKeyCoder
fail with
Expected: iterable over [<KV{apple, 1}>, <KV{apple, 1}>, <KV{apple, 2}>,
<KV{banana, 3}>, <KV{blackberry, 3}>] in any order
but: No item matches: <KV{apple, 1}> in [<KV{apple, 2}>, <KV{apple,
1}>, <KV{blackberry, 3}>, <KV{banana, 3}>]
I'll try to take a look as to why this is failing as the error message is
implying a comparison issue since all the values do exist in the actual output
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Issue Time Tracking
-------------------
Worklog Id: (was: 136990)
Time Spent: 1.5h (was: 1h 20m)
> Multimap side inputs with duplicate keys and values are being lost
> ------------------------------------------------------------------
>
> Key: BEAM-5184
> URL: https://issues.apache.org/jira/browse/BEAM-5184
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Luke Cwik
> Assignee: Vaclav Plajt
> Priority: Major
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Side inputs with duplicate values are being lost due to the usage of a set
> based multimap.
> [https://github.com/apache/beam/blob/05fb694f265dda0254d7256e938e508fec9ba098/sdks/java/core/src/main/java/org/apache/beam/sdk/values/PCollectionViews.java#L293]
>
> Originating thread:
> [https://lists.apache.org/thread.html/48bae7cf71bf6851622cdee0e8bc8619c79c4c2273ed63f288202169@%3Cdev.beam.apache.org%3E]
>
> Please update the existing tests to exercise this scenario as well:
> https://github.com/apache/beam/blob/9f23ffc97535e7255245f3852b9d2f0939df5a0a/sdks/java/core/src/test/java/org/apache/beam/sdk/transforms/ViewTest.java#L507
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