Tag：Reset
-
[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 […]
-
Explore the essence of react hooks – detailed explanation of useref source code
First of all, we need to know a few premise points In functional component, every change of props and the execution of setstate operation will cause the re execution of component methods. Based on 1, after the component method is executed, all directly defined const and let variables will be redefined. Therefore, constants that do […]
-
Case 2 of the actual development of the swoole project in laravel (the back end actively pushes messages to the interface according to scenarios)
Octuple Sakura: practical development case 1 of using the swoole project in laravel (establishing swoole and front-end communication) zhuanlan zhihu. com! ( https://zhstatic.zhihu.com/assets/zhihu/editor/zhihu-card-default.svg ) My official groupClick here 。 Get more swoole learning materials and video source code notes. requirement analysis Let’s assume that there is a demand. I click button 1 on the back […]
-
Web/js: using innerHTML to dynamically add HTML leads to button failure
A few days ago, when I used innerHTML to dynamically add HTML to table, I found that once it was added, the buttons in the original table would break. After some research, I found thatIt’s because we’re doing it document.body.innerHTML += ‘xxx’; WhenActually: document.body.innerHTML = (document.body.innerHTML + ‘xxx’); Destroy the original element and rebuild a […]
-
Experiment 7
class Users: def __init__(self, name=’guest’, password=’111111′, status=1): self.name = name self.password = password self.status = status def info(self): if self.status == 1: Print (self.name, ‘,, self.password,’, ‘,’ account normal ‘) else: Print (‘blocked account ‘) self.status = 0 def modify_password(self): if self.status == 1: for i in range(0,3): if self. Password = = input (‘input […]
-
Go timer timer and scheduled task Cron
Go timer timer and scheduled task Cron Last time we talked about the application of swaggo in go. Let’s review it What is swaggo What is swagger How to use swaggo How to test swaggo If you are still interested in the application of swaggo in go, you can check the articleHow does the backend […]
-
Principle and solution of event conflict
1. Motionevent event type ACTION_ Down: triggered when the finger touches the screen for the first time ACTION_ Move: triggered when the finger slides on the screen, which will be triggered many times ACTION_ Up: triggered when the finger leaves the screen ACTION_ Cancel: triggered when the event is intercepted by the upper layer 2. […]
-
React classic interview questions – Countdown component
React classic interview questions – Countdown component Gossip About the interview, people often roast: “the interview makes a rocket, and the work screws up.”, Thus, it expresses the current situation of different matching between work content and talent request. Some companies want to explore the technical ceiling or comprehensive technical talents of candidates, hoping to […]
-
Vue + element UI realizes complete login and exit functions
Then the last article began to record. The last problem of the last article has been solved, and I forgot: the cause. Modification completed. So far, the login and logout function has been realized. Here is my code: Login.vue <template> <div class=”login_container”> <div class=”login_box”> <!– Head — > <div class=”avatar_box”> <img> </div> <!– Login form […]
-
6.824 raft test
First read the raft paper at the following address:https://github.com/maemual/ra… The key point of raft is to vote by half, which requires that the number of servers is odd. When network partition occurs, the network is no longer symmetrical. Then, in order to complete any operation, more than half of the servers must be gathered to […]
-
Microservice – current limiting: I Implementation of token bucket algorithm by golang
At first, it was because we had to pull some third-party data, and the API interfaces of the third-party were limited flow measures. For example, 6000 / min, 500 / min. If you want to pull data, you can use multiple collaborative processes. But it is easy to overclock, so I want to write a […]