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Jun Rao commented on KAFKA-886: ------------------------------- Thanks for the update. Look good. The following sentence is not very accurate. In ack=0, the producer will lose messages from the time the leader is moved by controlled shutdown, till the time the broker is shut down. Once the broker is shutdown, the producer will detect the failure. It will then refresh the metadata and send the data to the new leader. "The client would end up loosing messages till the shutdown broker is brought back up." > Update info on Controlled shutdown and Preferred replica election tool > ---------------------------------------------------------------------- > > Key: KAFKA-886 > URL: https://issues.apache.org/jira/browse/KAFKA-886 > Project: Kafka > Issue Type: Sub-task > Affects Versions: 0.8 > Reporter: Sriram Subramanian > Assignee: Sriram Subramanian > Priority: Blocker > Labels: p1 > -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira