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https://issues.apache.org/jira/browse/KAFKA-3007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15062742#comment-15062742
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aarti gupta commented on KAFKA-3007:
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Can we expose the following private api as a public api?
private Map<TopicPartition, List<ConsumerRecord<K, V>>> pollOnce(long
timeout)
> new Consumer should expose mechanism to fetch single message
> -------------------------------------------------------------
>
> Key: KAFKA-3007
> URL: https://issues.apache.org/jira/browse/KAFKA-3007
> Project: Kafka
> Issue Type: Improvement
> Components: consumer
> Affects Versions: 0.9.0.0
> Reporter: aarti gupta
> Assignee: Neha Narkhede
>
> Currently, the consumer.poll(timeout)
> returns all messages that have not been acked since the last fetch
> The only way to process a single message, is to throw away all but the first
> message in the list
> This would mean we are required to fetch all messages into memory, and this
> coupled with the client being not thread-safe, (i.e. we cannot use a
> different thread to ack messages, makes it hard to consume messages when the
> order of message arrival is important, and a large number of messages are
> pending to be consumed)
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