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This article is reproduced from the official account of "good future technology". The use of Flink CDC 2 is introduced in the case of Flink SQL, and the core design of CDC is interpreted. The main contents are as follows:caseCore designCode explanationGitHub address https://github.com/apache/flinkWelcome to like Flink and send star~In ...

1, Introduction RocketMQ is Alibaba's open source distributed messaging middleware. It draws on Kafka's implementation and supports functions such as message subscription and publishing, sequential message, transaction message, timing message, message backtracking, dead letter queue and so on. RocketMQ architecture is mainly divided into four ...

fileupload website URL: you can view detailed documentation, as well as sample code FileUpload – Homehttp://commons.apache.org/proper/commons-fileupload/ Project environment: My front end is written in vue, and the back end is written in native servlet s   upload.parseRequest(req); This statement was supposed to get a List, but what I g ...

1, Introduction 1.1 general Zookeeper It is an open source distributed framework that provides coordination services for distributed frameworks Apache project   Working mechanism: 1.2 features 1.3 data structure          Structure and of ZooKeeper data model Unix The fil ...

Author Liu Yu (Jiang Yu)Opentask is an open source, serverless cloud platform. It can respond to various events by executing extended code in the runtime container without users' concern for the relevant infrastructure.Introduction to opentaskOpentask is a cloud based distributed event driven programming service. Opentask provides a programming ...

edition: Centos7.6 JDK1.8 Scala2.11 Python2.7 Git1.8.3.1 Apache Maven3.6.3 CDH6.3.2 Apache Flink1.12.0 The above software needs to be installed in advance!!! 1, Compile Flink 1 download the flink source code git clone https://github.com/apache/flink.git git checkout release-1.12.0 2. Add maven image Add the following mirrors in the m ...

1. Declaration The current content is mainly to learn and analyze the official OrderExample example and understand its meaning. Refer to Official documents 2. Official demo Serial number message producer public class OrderedProducer { public static void main(String[] args) throws Exception { // Instantiate with a producer group name. D ...

Startup process of root Activity There are two types of Activity startup: one is the startup process of root Activity, and the other is the startup process of ordinary Activity. Root Activity refers to the first Activity started by the application, so the startup process of root Activity can also be understood as the startup process of the app ...

I learned BroadcastReceiver from my teacher today. Let's record it. Send standard broadcast (use static registration, that is, manually write the registration code in AndroidManifest.xml) Take a look at my project structure   The MainActivity code is as follows import android.content.ComponentName; import android.conten ...

preface        Here we will introduce the deployment of LAMP platform and the steps of compiling and installing the source code of each component. 1, Introduction to LAMP 1. LAMP platform overview          LAMP architecture is one of the mature enterprise website applica ...