汀的知识碎片
Search
Search
Dark mode
Light mode
文章导航
Tag: dropDuplicates
2 items with this tag.
Feb 28, 2026
dropDuplicates 与精确去重：Exactly-once 的应用层保障
Spark
Structured-Streaming
dropDuplicates
去重
Exactly-once
Watermark
State-Store
幂等
Feb 28, 2026
状态过期与 TTL：让 State Store 不再无限膨胀
Spark
Structured-Streaming
Watermark
TTL
状态过期
GroupState
dropDuplicates
事件时间