Tag：problem
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Time：2021-1-19
By Xiao Yi, senior technical expert of Ali culture and entertainment Introduction:In the twinkling of an eye, half of 2020 has passed. It’s time to make a mid year summary. In this article, Xiao Yi, senior technology expert of Ali entertainment, summarizes his growth and harvest in the past six years in Ali, and shares […]
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Time：2021-1-19
Transferred from:http://blog.chinaunix.net/uid-11767650-id-1673086.htmlBecause I also encountered this problem, so I reprinted it directly… Recently, when learning Hadoop, you can use the command line to manage Hadoop simply. For example, you can use: View the HDFS root node of Hadoop hadoop fs -ls / Create folder lgG hadoop fs mkdir /user/root/LGGOperate through the command line interface.Of course, […]
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Time：2021-1-19
Recently, I encountered two compilation problems, which took a lot of effort. container_ Of question I defined container in one place_ Of macro, but repeated compilation errorsMacro is defined as follows: #define container_of(ptr, type, member) ({\ const typeof( ((type *)0)->member ) *__mptr = (ptr);\ (type *)( (void *) ( (char *)__mptr – offsetof(type,member) ) );}) […]
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Time：2021-1-18
Recently, the code of the scaffold’s compilation layer was upgraded. Vue gave feedback that there was a warning in the compilation style, and recorded the problems and solutions error message WARNING in ../vueSample/js/index/_pages/app.vue?vue&type=style&index=0&lang=stylus& 1:469-472 “export ‘default’ (imported as ‘mod’) was not found in ‘-!../../../../../node_modules/mini-css…. Problem webpack configuration { test: /\.styl(us)?$/, use: envAttributs(‘styl’, [ ‘stylus-loader’ ]) […]
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Time：2021-1-18
Record the problems when writing this game. When the key is pressed, it is forbidden to trigger repeatedly Demand: when the key is pressed, the speed will be reduced by 300 on the basis of the current value, speed – = 300There is a problem: when the key is pressed and held, speed will continue […]
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Time：2021-1-16
Google interview questions constructed: the knight’s dialerhttps://medium.com/@alexgolec… As an engineer and interviewer of Google, today is the second time that I have published an article to share the interview suggestions of a technology company.Here is a statement: This article only represents my personal observations, opinions and suggestions. Don’t take it as an official suggestion or […]
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Time：2021-1-16
1： Background 1. Tell a story Every time a project is pre delivered, there will always be various wonderful pits. I think it’s necessary to sort out and how to solve them quickly, so that later generations can avoid them. This article talks about what I heard and met I’ll go. The local environment code […]
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Time：2021-1-16
1 business scenario In the current product development, the front-end and back-end are completely separated. In the debugging stage, the ports of the static server and the interface server are different. When the front-end and back-end communicate, cross domain processing is needed here, which can be processed by the back-end. When the user calls the […]
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Time：2021-1-15
preface Because the k8s version of Alibaba cloud’s knative is greater than 1.15, and our current cluster environment is 1.14.8, we need to upgrade the pre release environment. There is nothing to write about the upgrade version of kubernetes cluster based on aliyun hosting, which can be implemented under the guidance of the official documents […]
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Time：2021-1-15
Author: Mu Ye Application real time monitoring service (arms) is an application performance management (APM) product, which includes three sub products: application monitoring, Prometheus monitoring and front-end monitoring, covering distributed applications, container environment, browsers, applets and apps Performance management can help users realize full stack performance monitoring and end-to-end full link tracking diagnosis, making application […]
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Time：2021-1-14
Recently, I reread the source code of afnetworking 3. X. it’s a review of the old to learn the new. Also combed some excellent code details and interview test points, listed down, found that this library is small and exquisite, it is a treasure house for beginners. What do you think of open source library? […]
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Time：2021-1-13
Windows Server 2012 build SQL server always on full record Environmental information: Windows Server 2012 R2Sql Server 2012 The whole process is divided into three steps 1. Configure the pre control and add the machine to the domain. 2. Configure windows fail over cluster 3. Configure SQL server always on high availability group (Ag) Full […]
