fxjwind

摘要： 看看Flink cep如何将pattern转换为NFA？ 当来了一条event，如果在NFA中执行的？ 前面的链路，CEP –> PatternStream –> select –> CEPOperatorUtils.createPatternStream 1. 产生NFACompiler.compileFactory，完成pattern到state的转换final NFACompiler... 阅读全文

摘要： https://github.com/linkedin/cruise-control https://engineering.linkedin.com/blog/2017/08/open-sourcing-kafka-cruise-control mark 阅读全文

摘要： https://ci.apache.org/projects/flink/flink-docs-release-1.3/dev/libs/cep.html 首先目的是匹配pattern sequence pattern Sequence是由多个pattern构成 DataStream input = ... Pattern pattern = Pattern.begin("start").w... 阅读全文

摘要： 使用方式， dataStream.coGroup(otherStream) .where(0).equalTo(1) .window(TumblingEventTimeWindows.of(Time.seconds(3))) .apply (new CoGroupFunction () {...}); 可以看到coGroup只是产生CoGroupedStr... 阅读全文

摘要： mark，很清晰的图 https://www.codeproject.com/Articles/33052/Visual-Representation-of-SQL-Joins 阅读全文

摘要： Task.run if (invokable instanceof StatefulTask) { StatefulTask op = (StatefulTask) invokable; op.setInitialState(taskStateHandles);} // run the invokableinvokable.invoke(); invokable是StreamT... 阅读全文

摘要： https://docs.google.com/document/d/1Lr9UYXEz6s6R_3PWg3bZQLF3upGaNEkc0rQCFSzaYDI/edit // create the original stream DataStream stream = ...; // apply the async I/O transformation DataStream> re... 阅读全文

摘要： http://geekabyte.blogspot.com/2015/01/using-optional-effectively-in-java-8.html mark 阅读全文

摘要： Properties properties = new Properties(); properties.setProperty("bootstrap.servers", "localhost:9092"); // only required for Kafka 0.8 properties.setProperty("zookeeper.connect", "localhost:2181"); p... 阅读全文

摘要： https://ci.apache.org/projects/flink/flink-docs-release-1.3/dev/connectors/kafka.html 使用的方式， DataStream stream = ...; FlinkKafkaProducer010Configuration myProducerConfig = FlinkKafkaProducer010.... 阅读全文