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When the requirements of an application are relatively simple, there may not be many operators involved in data conversion, but when the requirements of the application become more and more complex, the number of operators in a Job may reach dozens or even hundreds. With so many operators, the whole application will become very complex, So it w ...

Germeng Society AI: Keras PyTorch MXNet TensorFlow PaddlePaddle deep learning practice (updated from time to time) 4.4 real time log analysis Learning objectives target Master the connection between Flume and Kafka We have collected the log data into hadoop, but when doing real-time ana ...

2.2 Deep Principle The traditional Spring framework implements a WEB service, which needs to import various dependent JAR packages, then write corresponding XML configuration files, etc. Compared with Spring Boot, it is more convenient, fast and efficient.So how does Spring Boot really do that? 2.2.1 Dependency Management Question: Why doesn't ...

Log system scene In general, we need to do log analysis scenarios: directly in the log file, grep and awk can get the information they want. However, in large-scale scenarios, this method is inefficient, facing problems such as how to archive too much logs, how to do too slow text search, and how t ...

Application scenario Due to the high security requirements of the company where the friend is located, zabbix's network environment cannot be connected to the Internet, so it is not possible to send the alarm directly to some instant messaging tools through zabbix, which requires sending the alarm message to some middleware and forwarding it t ...

Automatic Submission from Consumer stay Above The use of the Producer API is described. Now that we know how to send messages through the API to Kafka, the producer/consumer model is one less consumer.Therefore, this article will introduce the use of the Consumer API, which consumes messages from Kafka to make an app a consumer role. As always ...

Table is not an append-only table. Use the toRetractStream() in order to handle add and retract messages. This is because the dynamic table is not in the append only mode. It needs to be processed with to retrieve stream tableEnv.toRetractStreamPerson.print() Today, when you start the Flink task, an error was reported as "Caused by: jav ...

FlinkKafkaConsumer011.setStartFromEarliest() /** *Specifies that consumer reads from the earliest offset of all partitions. *This method causes consumer to ignore any submitted offset s in Zookeeper / Kafka brokers. * *When consumer is restored from checkpoint or savepoint, this method does not work. In this case, the offset in the r ...

Introduce dependency <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.kafka</groupId> <artifactId>spring-kafka</artifactId> <versi ...

1, introduction This topic provides instructions for installing the Confluent platform configuration that can be used for production in a multi node environment using the replicated ZooKeeper ensemble. With this installation method, you can manually connect to each node, download the archive file, and ...