Tag：unable
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Centos7 mini version installation and deployment Hadoop high availability cannot automatically switch roles solution!
Solve the problem that the Hadoop ha cluster namenode cannot fail over automatically (switch active) I’m learningHa automation configuration, according to Hadoop official website:https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.htmlAfter configuration, all nodes start normally. useAfter the kill – 9 process number kills the namenode currently in the active state, other namenodes in the standby state do not automatically switch to […]
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SSH cannot start on Linux system
Log in directly on the machine, and the problem is shown as follows: /var/empty/sshd must be owned by root and not group or world-writable. Question: SSH on Linux cannot start Report / var / empty / sshd must be owned by root and not group or world writable solveway: First, […]
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Access denied for user ‘root’@’localhost’ (using password: YES)
Docker runs MySQL and cannot be connected in MySQL workbench docker run –name mysql-server -p 3306:3306 -v /usr/local/mysql/data:/var/lib/mysql -v /usr/local/mysql/conf.d:/etc/mysql/conf.d -e MYSQL_ROOT_PASSWORD=bei!123 -d mysql Docker MySql Error:Access denied for user ‘root’@’localhost’ (using password: YES) Solution: sudo mkdir /usr/local/mysql sudo mkdir /usr/local/mysql/data sudo mkdir /usr/local/mysql/conf.d docker run –name mysql-server -p 3306:3306 -v /usr/local/mysql/data:/var/lib/mysql -v /usr/local/mysql/conf.d:/etc/mysql/conf.d -e […]
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Yarn: unable to load file C: \ program files \ nodejs \ node_ global\yarn. PS1, because in this department
NPM: unable to load file C: \ program files \ nodejs \ node_ global\npm. PS1, because running scripts is prohibited on this system.
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OSX selects an independent Xcode command line development tool
Due to the deletion of Xcode App, making rustc / cargo build unusable = note: xcrun: error: active developer path (“/Applications/Xcode.app/Contents/Developer”) does not exist Use `sudo xcode-select –switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools, or use `xcode-select –install` to install the standalone command line developer tools. […]
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[unity editor extended basic summary] Chapter 3 data saving under editor
Chapter 3 data saving under editor When we expand the editor, we often need to save some data, such as some setting parameters related to the editor itself or some parameters related to the game, so that we can use it next time. There are three main ways to save data in unity. 3.1 use […]
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How to add value help to fields applied by SAP Fiori elements
In Jerry’s previous articleHow to quickly create Fiori elements application through CDs view on SAP BTPIn, we have created a Fiori elements application based on CDs view: In this article, we add value help to the selection field of agency ID Now agency ID selection ID, after clicking F4, value help cannot work: Add the […]
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Comparison of two writing methods of finding attributes in unity editor development
Starting from 2017, this is how to find the attribute in the editor script var m_Script = serializedObject.FindProperty(“m_Script”); SerializedProperty Take the source code of ugui as an example using UnityEngine; using UnityEngine.UI; using UnityEditor.AnimatedValues; namespace UnityEditor.UI { [CustomEditor(typeof(Selectable), true)] /// /// Custom Editor for the Selectable Component. /// Extend this class to write a custom […]
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The nodejs and jest unit tests cannot exit normally
Recently writingNodejs/JestWhen the application fails to exit normally during unit test, it is clear that the unit test has been executed, but the application is stuck and cannot exit normally, resulting in the failure of continuous execution of unit test. Due to the complex application, it is difficult to find out what causes it. After […]
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Scene content
1、 Article solicitation content (scene content direction) 1. Project background Last year, I created a small toolbar app in my Android Application Practice on campus. The reason is that there are old people at home who are using the new smart machine, but it is inconvenient to operate. Many common functions cannot be found, resulting […]
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The Chinese solution cannot be entered after upgrading the Ubuntu version of sublime
1、 If you have never solved the problem that Chinese cannot be input, you need to practice step by step Reference website:http://jingyan.baidu.com/article/f3ad7d0ff8731609c3345b3b.html 2、 If the problem cannot be solved after entering Chinese, you only need to enter the following steps: Modify the contents of the file / usr / bin / Subl sudo gedit /usr/bin/subl […]
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Inaccurate asynchronous breakpoints of vscade and webstorm when running jest test
It has been a passive problem for a long time. When developing react native applications, whether in vscade or webstorm, when running the jest test, the breakpoint cannot be successfully interrupted in async and yield functions. The breakpoint always stops at the head of the function and cannot stop on await or yield. For example, […]