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Posted to issues@openwhisk.apache.org by GitBox <gi...@apache.org> on 2018/01/02 09:03:43 UTC

[GitHub] devbv commented on issue #3072: Enhance kafka message provider

devbv commented on issue #3072: Enhance kafka message provider
URL: https://github.com/apache/incubator-openwhisk/pull/3072#issuecomment-354724456
 
 
   @markusthoemmes I think some types of RetriableException could duplicate the message if we tried to send a message again. I'm pretty sure that InvalidMetadata guarantees that we really fail to send a message, but cannot sure it when TimeoutException is raised.
   
   And you can see here, producer retries will cause duplicates for NotEnoughReplicasAfterAppendException
   https://kafka.apache.org/0100/javadoc/org/apache/kafka/common/errors/NotEnoughReplicasAfterAppendException.html

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