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From 이도현 <leedoh...@gmail.com>
Subject UnknownProducerIdException problems
Date Tue, 01 Jan 2019 23:51:16 GMT
I'm using kafka 1.1.1 and idempotent producer.
UnknownProducerIdException occurs particular topics when it is a low
traffic situation such as under 10 logs per day.
Increasing the retention of the topics reduce the frequency of occurrence.

ERROR [ReplicaManager broker=1] Error processing append operation on
partition topic-9 (kafka.server.ReplicaManager)
org.apache.kafka.common.errors.UnknownProducerIdException: Found no record
of producerId=65002 on the broker. It is possible that the last message
with the producerId=65002 has been removed due to hitting the retention

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