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https://issues.apache.org/jira/browse/NIFI-2865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Bende reopened NIFI-2865:
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> Address issues of PublishKafka blocking when having trouble communicating
> with Kafka broker and improve performance
> -------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-2865
> URL: https://issues.apache.org/jira/browse/NIFI-2865
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Fix For: 1.1.0
>
>
> When NiFi is unable to communicate properly with the Kafka broker, we see the
> NiFi threads occasionally block. This should be resolvable by calling the
> wakeup() method of the client. Additionally, if Kafka takes too long to
> respond, we should be able to route the FlowFile to failure and move on.
> PublishKafka has a nice feature that allows a demarcated stream to be sent as
> separate messages, so that a large number of messages can be sent as a single
> FlowFile. However, in the case of individual messages per FlowFile, the
> performance could be improved by batching together multiple FlowFiles per
> session
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