WebThe OceanBase CDC connector can also be a DataStream source. You can create a SourceFunction as the following shows: import org. apache. flink. api. common. typeinfo. TypeInformation ; import org. apache. flink. streaming. api. environment. StreamExecutionEnvironment ; import org. apache. flink. streaming. api. functions. source. WebJan 20, 2024 · FlinkPravegaReader is a Flink SourceFunction implementation which supports parallel reads from one or more Pravega streams. Internally, it initiates a Pravega reader group and creates Pravega EventStreamReader instances to read the data from the stream(s). It provides a builder-style API to construct, and can allow streamcuts to mark …
CDC Connectors for Apache Flink® documentation - GitHub Pages
WebFlink Table API & SQL provides users with a set of built-in functions for data transformations. This page gives a brief overview of them. If a function that you need is not supported yet, you can implement a user-defined function . If you think that the function is general enough, please open a Jira issue for it with a detailed description. WebApr 11, 2024 · Flink针对DataStream提供了大量的已经实现的算子. Map:输入一个元素,然后返回一个元素,中间可以进行清洗转换等操作. FlatMap:输入一个元素,可以返回0个 … phillies 2023 broadcast schedule
Initial understanding of Flink SourceFunction - programs.team
WebThe Flink runtime will NOT interrupt the source thread during graceful shutdown. Source implementors must ensure that no thread interruption happens on any thread that emits … WebDynamic sources and dynamic sinks can be used to read and write data from and to an external system. In the documentation, sources and sinks are often summarized under the term connector. Flink provides pre-defined connectors … WebFor functions that consume from multiple keyed inputs — such as a KeyedCoProcessFunction — Flink processes all records for a single key from all keyed inputs before moving on to the next. Event Time / Watermarks phillies 2023 opening day