For distributed execution, Flink chains operator subtasks together into tasks. Each task is executed by one thread. Chaining operators together into tasks is a useful optimization: it reduces the overhead of thread-to-thread handover and buffering, and increases overall throughput while decreasing latency.
Flink 原理与实现：Operator Chain原理-阿里云开发者社区
WebDo not chain the map operator someStream. map (...). disableChaining (); Set slot sharing group: Set the slot sharing group of an operation. Flink will put operations with the same slot sharing group into the same slot while keeping operations that don't have the slot sharing group in other slots. This can be used to isolate slots. WebOperators # Operators transform one or more DataStreams into a new DataStream. Programs can combine multiple transformations into sophisticated dataflow topologies. This section gives a description of the basic transformations, the effective physical partitioning after applying those as well as insights into Flink’s operator chaining. DataStream … csr schedule vii of companies act 2013
深入分析Flink的operator chain（算子链）机制 - 简书
WebApr 14, 2024 · 如何理解 Flink 中的 算子（operator）与链接（chain）？ Operators. Operator 可翻译成算子，即：将一个或多个数据流转换成一个新的数据流的计算过程。用 … WebOct 19, 2024 · 而output自身在operator chain中，是一个CopyingChainingOutput，或者ChainingOutput（根据是否配置了reuse objects）。 这里的headOperator即为operator chain中第一个operator，在这里即为StreamGroupedReduce。 它在执行processElement的时候，如果有调用output.collect，则会调用CountingOutput。 WebFlink和Spark类似，也是一种一站式处理的框架；既可以进行批处理（DataSet），也可以进行实时处理（DataStream）。 所以下面将Flink的算子分为两大类：一类是DataSet，一 … earache from wisdom tooth