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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2019/04/22 23:05:58 UTC

[GitHub] [pulsar] jerrypeng opened a new pull request #4103: Function neg ack

jerrypeng opened a new pull request #4103: Function neg ack
URL: https://github.com/apache/pulsar/pull/4103
 
 
   ### Motivation
   
   Since negative acknowledgements were added to Pulsar,  Pulsar functions should take advantage of this functionality.  When a error, e.g. user exception, happens we should send a negative ack so that the message can be redelivered and reprocessed. 
   
   Currently, users will have set the ackTimeout config for messages to be redelivered when an error happens.  This is cumbersome for users and hard to get right when process times vary
   

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