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数据流上的有状态计算 Stateful Computations over Data Streams	base

**Apache Flink^® - 数据流上的有状态计算 Stateful Computations over Data Streams**

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所有流用例

• 事件驱动应用
• 流&批处理分析
• 数据管道&ETL

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正确性保证

• Exactly-once state consistency Exactly-once 状态一致性
• Event-time processing 事件时间处理
• Sophisticated late data handling 成熟的延迟数据处理

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分层API

• SQL on Stream & Batch Data 统一SQL支持Stream和Batch数据处理
• DataStream API & DataSet API 数据流API&数据集API
• ProcessFunction (Time & State) ProcessFunction(时间&状态)

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聚焦运维

• Flexible deployment 灵活部署
• High-availability setup 高可用
• Savepoints 保存点

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大规模计算

• 水平扩展架构
• 超大state支持
• 增量checkpoint机制

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性能卓越

• Low latency 低延迟
• High throughput 高吞吐
• In-Memory computing 内存计算

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