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Posted to issues@beam.apache.org by "Beam JIRA Bot (Jira)" <ji...@apache.org> on 2021/04/21 17:20:01 UTC
[jira] [Commented] (BEAM-10529) Kafka XLang fails for ?empty?
key/values
[ https://issues.apache.org/jira/browse/BEAM-10529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17326737#comment-17326737 ]
Beam JIRA Bot commented on BEAM-10529:
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This issue is assigned but has not received an update in 30 days so it has been labeled "stale-assigned". If you are still working on the issue, please give an update and remove the label. If you are no longer working on the issue, please unassign so someone else may work on it. In 7 days the issue will be automatically unassigned.
> Kafka XLang fails for ?empty? key/values
> ----------------------------------------
>
> Key: BEAM-10529
> URL: https://issues.apache.org/jira/browse/BEAM-10529
> Project: Beam
> Issue Type: Bug
> Components: cross-language, io-java-kafka
> Reporter: Luke Cwik
> Assignee: Chamikara Madhusanka Jayalath
> Priority: P2
> Labels: stale-assigned
>
> It looks like the Javadoc for ByteArrayDeserializer and StringDeserializer can return null[1, 2] and we aren't using NullableCoder.of(ByteArrayCoder.of()) in the expansion[3]. Note that KafkaIO does this correctly in its regular coder inference logic[4].
> 1: https://kafka.apache.org/21/javadoc/org/apache/kafka/common/serialization/ByteArrayDeserializer.html#deserialize-java.lang.String-byte:A-2: https://kafka.apache.org/21/javadoc/org/apache/kafka/common/serialization/StringDeserializer.html#deserialize-java.lang.String-byte:A-
> 3: https://github.com/apache/beam/blob/af2d6b0379d64b522ecb769d88e9e7e7b8900208/sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/KafkaIO.java#L478
> 4: https://github.com/apache/beam/blob/af2d6b0379d64b522ecb769d88e9e7e7b8900208/sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/LocalDeserializerProvider.java#L85
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