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https://issues.apache.org/jira/browse/BEAM-223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía updated BEAM-223:
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Component/s: (was: z-do-not-use-sdk-java-extensions)
io-java-kafka
> KafkaIO: don't use SerializableCoder
> ------------------------------------
>
> Key: BEAM-223
> URL: https://issues.apache.org/jira/browse/BEAM-223
> Project: Beam
> Issue Type: Bug
> Components: io-java-kafka
> Reporter: Daniel Halperin
> Assignee: Raghu Angadi
> Priority: Major
> Fix For: 0.4.0
>
>
> Reuven says:
> {quote}
> I noticed that we're using SerializableCoder for the checkpoint mark in
> KafkaIO. This is generally highly discouraged in streaming pipelines.
> Partially because it's inefficient, but more importantly because Java
> serialization is not guaranteed to be stable. If a user updates their
> pipeline, the new pipeline may not be able to decode the existing checkpoint
> marks; this will either cause exceptions to be thrown, or data loss.
> {quote}
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