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https://issues.apache.org/jira/browse/KAFKA-3539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17344023#comment-17344023
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Moses Nakamura commented on KAFKA-3539:
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[~ewencp] thanks, I started the KIP process, it's
[KIP-739|https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=181306446]
and the discussion thread is
[here|https://lists.apache.org/x/thread.html/r0cc154d47903bc9f905bce790c4a492761d7cc54076b1c320c68f122@%3Cdev.kafka.apache.org%3E].
Please let me know what you think!
> KafkaProducer.send() may block even though it returns the Future
> ----------------------------------------------------------------
>
> Key: KAFKA-3539
> URL: https://issues.apache.org/jira/browse/KAFKA-3539
> Project: Kafka
> Issue Type: Bug
> Components: producer
> Reporter: Oleg Zhurakousky
> Priority: Critical
> Labels: needs-discussion, needs-kip
>
> You can get more details from the us...@kafka.apache.org by searching on the
> thread with the subject "KafkaProducer block on send".
> The bottom line is that method that returns Future must never block, since it
> essentially violates the Future contract as it was specifically designed to
> return immediately passing control back to the user to check for completion,
> cancel etc.
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