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https://issues.apache.org/jira/browse/BEAM-2185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16005684#comment-16005684
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Xu Mingmin commented on BEAM-2185:
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Good idea, I would prefer to option #1, that's the common case I use to ingest
Kafka data into a batch process.
> KafkaIO bounded source
> ----------------------
>
> Key: BEAM-2185
> URL: https://issues.apache.org/jira/browse/BEAM-2185
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-extensions
> Reporter: Raghu Angadi
>
> KafkaIO could be a useful source for batch applications as well. It could
> implement a bounded source. The primary question is how the bounds are
> specified.
> One option : source specifies a time period (say 9am-10am), and KafkaIO fetch
> appropriate start and end offsets based on time-index in Kafka. This would
> suite many batch applications that are lauched on a scheduled.
> Another option is to always read till the end and commit the offsets to
> Kafka. Handling failures and multiple runs of a task might be complicated.
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