Programmer Help

0. Preface The project is managed and built using Maven, so it needs to be preconfigured.Well, I haven't done much in this series. 1. Create a project Create one firstPom.xmlFile, add the following: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSc ...

spring boot uses starter to solve many configuration problems, but how does it solve these problems Here is a simple example to see how starter sets the default configuration 1, Build starter project The project naming specification is: custom name spring boot starter Let's take a look at my last directory structure   1. Modification pom.xml ...

Configure different access ports for multiple applications in tomcat Open tomcat installation directory and check conf/server.xml <?xml version="1.0" encoding="UTF-8"?> <Server port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.core.AprLifecycleListener" /> <Listener c ...

fn main() { println!("hello rust");} With the launch of Facebook's Libra project, Rust became the biggest project in the history of Rust, but with the rise of global digital currency, the journey of Rust may be just beginning. Although you may not know much about Rust, in the eyes of developers, it's really delicious! For four years in a r ...

In the previous blog, we introduced Apache Pulsar and its differences from other message systems, and explained how to integrate Pulsar and Flink to work together to provide a seamless developer experience for large-scale elastic data processing.   This article will introduce the integration and latest research and development progress of Apa ...

<?php if(($sock = socket_create(AF_INET, SOCK_STREAM, 0)) < 0) { echo "failed to create socket: ".socket_strerror($sock)."n"; exit(); } if(($ret = socket_bind($sock,'127.0.0.1', 8888)) < 0) { echo "failed to bind socket: ".socket_strerror($ret)."n"; exit(); } if( ( $ret = socket_listen( ...

https://flink.apache.org/ #Flink official website This step (k8s) deployment requires a profile First copy all the configuration files of Flink to the local, and then hang the local configuration files in the POD 1.1 configuration file of jobmanager vim flink-conf.yaml Modify profile jobmanager.rpc.address: flink-jobmanager-svc jobmanage ...

1 data source: the last product about simple statistics of mobile traffic     2. Requirements: sort in reverse order according to the total flow value, and then get the output 3. General logic (1) FlowSort class: for serialization and deserialization, the implementation of sorting logic interface (2) FlowSortMapper class: encapsulating data (3 ...

There is a lot of feedback from readers. Please refer to the previous article< Hive is finally waiting, Flink >When Flink is deployed and Hive is integrated, there are some bug s and compatibility problems. Although waiting, it is not available. So I added this article as a sister article. review In the previous article, the author use ...

BUG s have recently appeared online, and it is after server migration that a lua script that finds nginx cannot collect log data for nginx After sorting, it was found that because lua could not find the corresponding file, the nginx data could not be written to the file.That is, lua cannot create the create file directory and therefore cannot f ...