流水线 / 流任务
用户行为日志：从采集到看板
跟随一条事件流从日志采集、消息缓冲、窗口聚合到指标查询，观察延迟与吞吐在各阶段如何变化。
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
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