Kafka processing OffsetForLeaderEpochRequest
What’s LeaderEpochCache? 每個log（一個log有1到多個segment）都有一個記錄了leaderEpoch和其startOffset的文件：leader-epoch-checkpoint log在初始化的時候，會從文件系統加載各種元數據信息，其中一項就是讀取leader-epoch-checkpoint文件，建立leaderEpochCache，cache其實就是epo
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相關文章
- 1. Data Processing with SMACK: Spark, Mesos, Akka, Cassandra, and Kafka
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