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https://issues.apache.org/jira/browse/NIFI-4680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16284212#comment-16284212
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ASF subversion and git services commented on NIFI-4680:
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Commit c138987bb46b975379daa00e57c42f498b6ef207 in nifi's branch
refs/heads/master from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=c138987 ]
NIFI-4656, NIFI-4680: This closes #2330. Fix error handling in consume/publish
kafka processors. Address issue with HortonworksSchemaRegistry throwing
RuntimeException when it should be IOException. Fixed bug in
ConsumeerLease/ConsumKafkaRecord that caused it to report too many records
received
Signed-off-by: joewitt <[email protected]>
> Improve error handling in Publish/Consume Kafka processors
> ----------------------------------------------------------
>
> Key: NIFI-4680
> URL: https://issues.apache.org/jira/browse/NIFI-4680
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Fix For: 1.5.0
>
>
> While reviewing NIFI-4639, I encountered a couple of issues surrounding how
> NiFi handles errors in the Publish and Consume Kafka processors.
> If interacting with the Hortonworks Schema Registry and unable to connect to
> it, the Exception that was thrown was a RuntimeException instead of an
> IOException. This resulted in ConsumeKafkaRecord continuing to try to parse
> every record it received. This could cause it to take a very long time to
> stop the processor in such a case.
> On the publisher side if this happened, some flowfiles were transferred back
> to their original queues and then attempted to transfer to failure. As a
> result, the session would rollback instead of transferring anything to
> failure, and an error message would indicate that flowfile was already
> transferred.
> When attempting to rollback consumed records, a NPE was thrown if reading
> from the beginning of the topic (no offsets had been committed).
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