directory validhome selected the

Tablespace 'innodb_system' Page [page id: space=0, page number=5] log sequence number 2243306228 is in the future! Current system log sequence number 2243305813.

场景: 这几天在外面实习,老师的项目数据库崩了让我看,连着两条看到十一二点,哎。 主要场景是mysql突然崩溃,发现重启mysqld服务无效,重启系统无效。查看/var/log/mysql.log日志,看到以下内容: The manual page at http://dev.mysql.com/d ......
number sequence system page innodb_system

User installations are disabled via policy on the machine. 安装python

User installations are disabled via policy on the machine. 解决办法 1、在运行里输入gpedit.msc;(group policy)组策略 2、计算机配置管理>>管理模板>>windows组件>>windows Installer>>禁止 ......
installations disabled machine policy python

mybatis定义sql语句标签之select 标签

属性介绍: id :唯一的标识符.和Mapper接口定义方法名同名。 parameterType:传给此语句的参数的全路径名或别名 例:com.test.poso.User或user,目前很少用到。 resultType :语句返回值类型或别名。 注意,如果是集合,那么这里填写的是集合的泛型,而不是 ......
标签 语句 mybatis select sql

Quartus Prime-can't launch the ModelSim software 的解决办法

19.1 版本的Quartus Prime Lite版本,安装了免费版的modelsim, 已经设置了modelsim 的 路径: 但是还是提示: 打开Setting这里 设置选中Modelsim-Altera 就可以了: ......
Prime-can ModelSim software Quartus 办法

[INS-42017] The Grid home is inconsistent on the following nodes: [11grac2]

1、一套11.2.0.4 RAC的测试环境,集群被捣鼓坏了,打算deconfig后,运行config.sh脚本重新配置集群。 2、运行config.sh脚本,在检测环境时,遇到如下故障: [INS-42017] The Grid home is inconsistent on the followi ......
inconsistent following 42017 grac2 nodes

Codeforces Round 866 (Div. 1) C. The Fox and the Complete Tree Traversal (构造)

传送门 题目大意: ** 给定一个有n个点的树,我们可以任意选择一个点作为起点,这个点可以跳到跟自己距离为1或者距离为2的点,已经到达的点不能再到达(最终必须回到起点),询问是否存在一种方案可以从一个点出发经过所有的点最终再回到这个点来。** ** 输入一个整数n。紧接着输入n-1条边。** 大致思 ......
Codeforces Traversal Complete Round Tree

Introducing the QCN9074: A Revolutionary New Chip for the Internet of Things

The QCN9074 is a high-performance chip designed to meet the demanding needs of the Internet of Things (IoT) market. With its powerful processing capab ......

CF1699A The Third Three Number Problem

###题意简述 构造出一个三元组a,b,c使得(a ⊕ b)+(a ⊕ c)+(b ⊕ c) = n,若无解输出-1。 符号 ⊕ 的意思为异或 ###个人分析 首先要了解异或符号的性质: 1,x⊕0=x 2,x⊕x=x 根据异或符号的性质可以得到一下构造: a=b=0,c=n/2 c=0,a=b=n ......
Problem Number 1699A Third Three

How to get Linux kernel Information using the command line All In One

How to get Linux kernel Information using the command line All In One 如何使用命令行获取 Linux 内核信息 ......
Information command kernel Linux using

JPG 100 vs JPG 20: What’s The Difference?

JPG 100 vs JPG 20: What’s The Difference? So you’re into photography and while you’re showing some skill and getting a handle on camera settings for t ......
Difference JPG What 100 The

As a restaurant owner, write a professional email to the supplier to get these products every week: - Wine (x10) - Eggs (x24) - Bread (x12)

As a restaurant owner, write a professional email to the supplier to get these products every week: Wine (x10) Eggs (x24) Bread (x12) Dear Supplier, I ......

react18中antd的select选择器组件自定义下拉框的内容

效果如图 导入组件和图标 import { Select } from 'antd' import { ManOutlined, WomanOutlined } from '@ant-design/icons'; const { Option } = Select; 数据 let userListO ......
组件 内容 select react antd

[PART 1-1] The Transaction

This chapter is talking about some affairs happened in a school speech. I perceive this as the author casually talking. But this section is still a ge ......
Transaction PART The

Correct the classpath of your application so that it contains a single, compatible version of xxx报错解决

1.背景 有时候引入包有冲突,比如在Maven项目中的不同模块多次重复引入等 这里遇到的问题是重复映入了如下包: <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactI ......

error: Your local changes to the following files would be overwritten by merge 解决方案

拉取代码出现 error: Your local changes to the following files would be overwritten by merge 解决方案 你团队其他成员修改了某文件并已提交入库。 你在pull之前修改了本地该文件,等你修改完代码再pull时,这时会报错如下 ......

kseq_fastq_base.c:1:10: fatal error: zlib.h: No such file or directory

01、ubuntu系统: (py38) root@DESKTOP-IDT9S0E:/home/software/readfq# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubunt ......
kseq_fastq_base directory fastq error fatal

SpringBoot上传文件报错The field multiFile exceeds its maximum permitted size of 1048576 bytes

问题原因:在上传文件中文件的大小超过默认大小,所以抛出此异常。 解决办法:在SpringBoot的配置文件中修改上传文件大小的配置 1、application.properties spring.servlet.multipart.max-request-size=200MB spring.serv ......

[LeetCode] 2418. Sort the People

You are given an array of strings names, and an array heights that consists of distinct positive integers. Both arrays are of length n. For each index ......
LeetCode People 2418 Sort the

C. Restore the Array - 构造 + 思维

对于长度为n的数组a,存在长度为n-1的数组b有b[i]=max(a[i],a[i+1]),t组测试数据,给出n和b数组,构造a数组。 分析: ......
思维 Restore Array the

C# Under the Hood: async/await

https://www.markopapic.com/csharp-under-the-hood-async-await.html ......
Under async await Hood the

SQL Inject漏洞手工测试:基于报错的信息获取(select/delete/update/insert)

技巧思路:在MYSQL中使用一些指定的函数来制造报错,从而从报错信息中获取设定的信息。select/insert/update/delete都可以使用报错来获取信息。背景条件:后台没有屏蔽数据库报错信息,在语法发生错误时会输出在前端。 重点:基于报错的信息获取 三个常用的用来报错的函数updatex ......
漏洞 手工 Inject select delete

[select2] 自定义下拉内容格式

<html> <header> <link href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css" rel="stylesheet" /> </header> <body> <select id= ......
select2 格式 内容 select

tracecompass mac 安装JVM shared library does not contain the JNI_CreateJavaVM symbol问题解决

最近在学习tracecompass,因为mac 系统版本有点高,直接运行发现起不来 可能的原因 jvm 版本问题 可以通过修改Info.plist 文件添加jvm 信息 依赖库签名问题 我的jvm 是正确的,但是还是提示上边的问题,结果通过直接命令行启动,发现提示签名问题 如下 ver/libjvm ......

How use the RegExp to filter IP address in js All In One

How use the RegExp to filter IP address in js All In One 如何使用 RegExp 在 js 中过滤 IP 地址 192.168.18.1 < 192.168.18.N < 192.168.18.255 ignore IPs: 192.168.1 ......
address RegExp filter How All

【c&c++】[Error] iostream.h: No such file or directory的解决办法

直接上错误代码实例 #include <iostream.h> int main() { print('hello, world\n') return 0; } 编译通不过,直接出错 这是C语言转C++的两条经典错误 C++中是没有iostream.h这个东西的(或者一般不会这么使用),正确用法是: ......
directory iostream 办法 Error file

Access denied; you need (at least one of) the SYSTEM_USER privilege(s) for this operation

原因是由于root用户没有SYSTEM_USER权限,把权限加入后即可解决: grant system_user on *.* to 'root'; ......

The binary version of its metadata is 1.8.0, expected version is 1.5.1.

C:/Users/sdt16354/.gradle/caches/transforms-3/b92f389f516aa233b37ae70b7a7c1337/transformed/jetified-annotation-jvm-1.6.0.jar!/META-INF/annotation.kotl ......
version expected metadata binary is

Introducing the QCN9074: A Revolutionary New Chip for the Internet of Things

The QCN9074 is a high-performance chip designed to meet the demanding needs of the Internet of Things (IoT) market. With its powerful processing capab ......

The Bells are Ringing UVA-12119

已知M 为T1,T2,T3 的LCM 输出满足 Ti-Tj<=25 的所有可能情况 #include<iostream> #include<cmath> #include<algorithm> #include<cstring> using namespace std; const int N= 1 ......
Ringing Bells 12119 The are