1，ReplicaFetcherThread: data loss on unknown exception
[2018-01-29 12:55:51,188] ERROR [Replica Manager on Broker 1]: Error when processing fetch request for partition [sql-info,9] offset 73557694 from consumer with correlation id 0. Possible cause: Request for offset 73557694 but we only have log segments in the range 73301853 to 73555308. (kafka.server.ReplicaManager)
解决方案：https://issues.apache.org/jira/browse/KAFKA-2165