flink 维表关联、翻译字典
flink1.12.x 双流 join - 介绍
Slot request bulk is not fulfillable! Could not allocate the required slot within slot request timeout
setExternalizedCheckpointCleanup(CheckpointConfig.ExternalizedCheckpointCleanup.DELETE_ON_CANCELLATION)setExternalizedCheckpointCleanup(CheckpointConfig.ExternalizedCheckpointCleanup.RETAIN_ON_CANCELLATION)
flink1.12.x barrier对齐和不对齐
flink1.12.x End-to-End 端到端数据一致性：at-most-once、at-least-once
flink1.12.x checkpoint：代码演示案例
flink1.12.x state和checkpoints区别
RocksDB简介
8020端口：hadoop接收Client连接的端口，用于上传文件、下载文件等