Flink doc

作者: Ary_zz | 来源:发表于2020-12-03 09:14 被阅读0次

2020-12-02

Application state is a first-class citizen in Flink

Multiple State Primitives
Pluggable State Backends
Exactly-once state consistency
Large State asynchronous and incremental checkpoint algorithm
Scalable Applications

A ProcessFunction can arbitrarily modify its state and register timers that will trigger a callback function in the future. Hence, ProcessFunctions can implement complex per-event business logic as required for many stateful event-driven applications.

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