Tag：news
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[Kafka operation and maintenance] Kafka network’s most complete and detailed operation and maintenance command collection (boutique is strongly recommended to collect!!!)
Starting official account: Shi Zhenzhen’s grocery id:jjdlmnPersonal wx: jjdlmn_ Most of the following operation and maintenance operations can be usedLogI-Kafka-ManagerVisual operation on the platform; @[TOC] 1.TopicCommand 1.1. Topic creation bin/kafka-topics.sh –create –bootstrap-server localhost:9092 –replication-factor 3 –partitions 3 –topic test Relevant optional parameters parameter describe example –bootstrap-server Specify Kafka service Specify the Kafka service to connect […]
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[FAQ] summary of some common problems in accessing the HMS core push service
HMS core push service(push Kit) is a message push platform provided by Huawei, which establishes a message push channel from the cloud to the terminal. By integrating push services, developers can apply real-time push messages to clients, build good user relationships, and improve users’ perception and activity. Push service consists of two parts: Message push […]
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Springboot integrates ActiveMQ to realize two modes: queue and topic (if you can’t understand it, hit me)
1、 Foreword Recently, Xiaobian was learning the message queue, and then selected ActiveMQ to learn. So he explored for a long time to sort out his learning experience! We all study together, hoping to be useful to youI wrote some of my own understanding in the notes. Pay attention!! 2、 Downloading and using ActiveMQ download […]
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Bowen dry goods ｜ using Apache pulsar in kotlin
About Apache pulsarApache pulsar is a top-level project of the Apache Software Foundation. It is a native distributed message flow platform for the next generation cloud. It integrates message, storage and lightweight functional computing. It adopts a separate architecture design of computing and storage, supports multi tenancy, persistent storage, multi machine room cross regional data […]
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Redis implements simple message queue – go language version
preface Suppose we have a scenario in which the system will push a message to the user under a specific situation, which may be SMS, email or in-station message. Because the scenario message may push a large number of messages at the same time at a certain time, and the main process does not want […]
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Bowen dry goods ｜ Apache inlong uses Apache pulsar to create data warehousing
About Apache pulsar Apache pulsar is a top-level project of the Apache Software Foundation. It is a native distributed message flow platform for the next generation cloud. It integrates message, storage and lightweight functional computing. It adopts a separate architecture design of computing and storage, supports multi tenancy, persistent storage, multi machine room cross regional […]
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How does SAP ui5 framework perform single step debugging of batch requests
req.get(‘content-type’) Normal batch operation, responsecontent-typeHTML type should not be returned: Correct batch response,Content-TypeThe value should bemultipart/mixed; boundary=batchresponse_ Followed by a guid Success handler is the following figurefnSuccess, wrapped inwraHandlerLi. Different content type responses are handled by different handlers. httpClient. If the request is executed incorrectly, it will enter thecatchBranch, error message: invalid MIME part type […]
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Introduction and description of Java observer mode
Transferred from: http://www.java265.com/JavaCourse/202206/3741.html The following is an introduction to the observer model, as shown below Observer mode Observer mode: It is called publish/subscribe mode Used to define a one to many dependency, When the state of an object changes, the objects that depend on it will be notified Advantages of observer mode: 1. The observer […]
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Quickly integrate Huawei agcconnect in app messaging service – Android
Huawei appgallery connect provides an in app message service. In app messaging service can send targeted messages to users based on user usage scenarios when users use the application, encourage users to use some key functions of the application, and also send more attractive marketing content with the help of in app messages to enhance […]
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Various errors and solutions encountered when using SAP Fiori tools to deploy SAP ui5 application to ABAP server
Error 1 (node:28340) UnhandledPromiseRejectionWarning: TypeError: Cannot read property ‘customMiddleware’ of undefined at handleABAP (C:\Code\UI5\Walkthrough\35\node_modules\@sap\ux-ui5-tooling\dist\cli\cmd\add-deploy-config.js:113:29) Error reason: the version of Fiori tools cli used is too low. “@sap/ux-ui5-tooling”: “1.0.10” https://www.npmjs.com/package… Solution: use the latest1.4.7edition: Error message 2 Error: Cannot find proxy middleware config in [C:\Code\UI5\Walkthrough\35\ui5.yaml] at f (C:\app\node-v12.18.3-win-x64\node_modules\@sap\generator-fiori\generators\deployment-generator\abap\index.js:2:616172) at Object.r.handleErrorMessage (C:\app\node-v12.18.3-win-x64\node_modules\@sap\generator-fiori\generators\deployment-generator\abap\index.js:2:616358) Error reason: the ui5.yaml file […]
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Multithreading, handler mechanism, ThreadLocal
Thread Thread status: new, start, run, block, death The start method calls the run method internally. Start will start the thread, and run is only an internal method; Sleep will occupy the lock and restart when the sleep time expires; It is violent to stop the thread and forcibly unlock the locked object, so the […]
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Rpush: multi platform unified message push system
https://gitee.com/shuangmulin/rpush One interface can reach multiple platforms (including wechat official account, enterprise wechat, nail, email and so on. Any desired platform can be pushed by one interface at a time; the minimalist code call greatly reduces the amount of code pushed by the business party); At the same time, it provides instant messaging based on […]