526互联

increasing decreasing 1864a and

com.netflix.hystrix.exception.HystrixRuntimeException: xxxFeign#xxxx timed-out and no fallback.....

**问题描述** 在使用Feign进行远程调用时遇到的bug。原因是因为超时了。需要对超时时间进行设置一下即可。 **在Nacos进行设置** ![](https://img2023.cnblogs.com/blog/3161806/202306/3161806-20230610185436561- ......
HystrixRuntimeException exception timed-out fallback xxxFeign

Shellcode Execution in a Local Process with QueueUserAPC and NtTestAlert（nim学习系列）

# Shellcode Execution in a Local Process with QueueUserAPC and NtTestAlert ## APC队列 异步过程调用（APC）队列是一个与线程关联的队列，用于存储要在该线程上下文中异步执行的函数。操作系统内核会跟踪每个线程的 APC 队 ......
QueueUserAPC NtTestAlert Shellcode Execution Process

Occupancy Grid Map to Pose Graph-based Map: Robust BIM-based 2D- LiDAR Localization for Lifelong Indoor Navigation in Changing and Dynamic Environments

将占据栅格地图转换为基于姿态图的地图：基于BIM的2D LiDAR定位在变化和动态环境中实现终身室内导航的鲁棒性。 摘要： 许多研究都依赖于事实上的标准自适应蒙特卡罗定位（AMCL）方法，以在从建筑信息模型（BIM模型）提取的占用栅格地图（OGM）中定位机器人。然而，大多数这些研究都假设BIM模型准 ......
based Environments Localization Graph-based Navigation

CF 570E - Pig and Palindromes

https://codeforces.com/problemset/problem/570/E 双向DP，类似于摘樱桃：https://leetcode.cn/problems/cherry-pickup/ 记忆化搜索，超内存 ```cpp #include #include #include #i ......
Palindromes 570E 570 Pig and

CF437E The Child and Polygon

# The Child and Polygon 题解 > 这世界这么大，遇到了这个奇奇怪怪的题。 这道题其实可以很自然的联想到卡特兰数。 在卡特兰数的计数中，有这么一个意义：$C_n$ 表示把有 $n+2$ 条边的凸多边形分成 $n$ 个三角形的方案数。 利用这个意义可以得到 $C_n$ 的另一个递 ......
Polygon Child 437E 437 The

指数分布和泊松过程(Exponential Distribution and Poisson Process)--3

## 指数分布和泊松过程(Exponential Distribution and Poisson Process)--3 ![](https://img2023.cnblogs.com/blog/2968162/202306/2968162-20230609160253459-973115693. ......
Distribution Exponential 指数 过程 Poisson

How To Add A Form Splitter with AX2012 and D365FO

Learn how to add a form splitter to resize areas of a form in Microsoft Dynamics AX and D365 F&O. This improves the usability of the form, and increas ......
Splitter 2012 Form D365 with

【每日一题】Problem 313B - Ilya and Queries

[原题](https://codeforces.com/problemset/problem/313/B) #### 解决思路 使用后缀和计算到 i 处共有多少对 $s_i = s_{i+1}$，计算时相减以下就可以 ```C++ #include int main() { std::string ......
Problem Queries 313B Ilya 313

CF547E Mike and Friends题解

[题目链接](https://www.luogu.com.cn/problem/CF547E) 温馨提示：做本题之前可以先尝试这个：[洛谷 P2414 阿狸的打字机](https://www.luogu.com.cn/problem/P2414)(是简单版的uwu)。 首先，这个题涉及多模式串匹配， ......
题解 Friends 547E Mike 547

Supervised Machine Learning Regression and Classification - Week 1

# 1. 机器学习定义 > Field of study that gives computers the ability to learn without being explicitly programmed. -- Arthur Samuel(1959) ![](https://img2023 ......
Classification Supervised Regression Learning Machine

[ERROR] Can't find error-message file '/data/mysql/share/errmsg.sys'. Check error-message file location and 'lc-messages-dir' configuration directive.

1. MySQL5.7.21启动时报错: [ERROR] Can't find error-message file '/data/mysql/3307/share/errmsg.sys'. Check error-message file location and 'lc-messages-dir ......
error-message message 39 error file

Application of Permutation and Combination

# Reference https://www.shuxuele.com/combinatorics/combinations-permutations.html # Online Tool https://gadget.chienwen.net/x/math/percomb # Cracking ......
Application Permutation Combination and of

Celery with FastAPI and TortoiseORM

API server using: `fastapi+tortoise-orm+postgresql+redis+supervisor+nginx` There are some period tasks and async tasks that will run in `celery+rabbit ......
TortoiseORM FastAPI Celery with and

wait_timeout and interactive_timeout 参数

### wait_timeout and interactive_timeout 参数 - 非交互模式连接：通常情况下，应用到RDS实例会采用非交互模式，具体采用哪个模式需要查看应用的连接方式配置，比如PHP通过传递MYSQL_CLIENT_INTERACTIVE常量给mysql_connect() ......
timeout interactive_timeout wait_timeout interactive 参数

coe_xfr_sql_profile.sql脚本 适用 oracle数据库版本：10.2, 11.1, 11.2, 12.1, 12.2 18c_and 19c

coe_xfr_sql_profile.sql脚本 内容如下： 适用 oracle数据库版本：10.2, 11.1, 11.2, 12.1, 12.2 18c_and 19c 注明：复制粘贴即可。 SPO coe_xfr_sql_profile.log;SET DEF ON TERM OFF ECH ......
coe_xfr_sql_profile 脚本 sql profile 版本

12_How to deploy Flask apps on Ubuntu VPS Using gunicorn and Ngnix

地址：https://www.codewithharry.com/blogpost/flask-app-deploy-using-gunicorn-nginx/ How to deploy flask app on Ubuntu VPS using Nginx and gunicorn In thi ......
gunicorn deploy Ubuntu Flask Ngnix

Backtrader - numpy.core._exceptions.MemoryError: Unable to allocate 77.2 GiB for an array with shape (10368000003,) and data type float64

1.0 Error numpy.core._exceptions.MemoryError: Unable to allocate 77.2 GiB for an array with shape (10368000003,) and data type float64 錯誤提示 2.0 原因 沒有任 ......
10368000003 MemoryError Backtrader exceptions allocate

CF1559D2 Mocha and Diana (Hard Version) 题解

[Luogu](https://www.luogu.com.cn/problem/CF1559D2) | [Codeforces](https://codeforces.com/problemset/problem/1559/D2) ### 题意 给定两个森林 $A$ 和 $B$，均有编号 $1$ ......
题解 Version 1559D Mocha Diana

Reward Modelling（RM）and Reinforcement Learning from Human Feedback（RLHF）for Large language models（LLM）技术初探

Reward Modelling（RM）and Reinforcement Learning from Human Feedback（RLHF）for Large language models（LLM）技术初探 ......
Reinforcement Modelling Learning Feedback language

How do you display code snippets in MS Word preserving format and syntax highlighting?

How do you display code snippets in MS Word preserving format and syntax highlighting? 回答1 Here is the best way, for me, to add code inside word: Go t ......
highlighting preserving snippets display format

Unexpected character '"' (code 34) in DOCTYPE declaration; expected a space between public and system identifiers

1）错误信息 Caused by: javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service. at org.apac ......
declaration identifiers Unexpected character expected

Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

https://tools.ietf.org/html/rfc7231 Table of Contents 1. Introduction ....................................................6 1.1. Conformance and Error ......
Hypertext Semantics Transfer Protocol Content

[LeetCode] 2352. Equal Row and Column Pairs

Given a 0-indexed n x n integer matrix grid, return the number of pairs (ri, cj) such that row ri and column cj are equal. A row and column pair is co ......
LeetCode Column Equal Pairs 2352

cpp test write content speed to ssd and usual disk respectively 1M,10M,100M rows data,the fact has illustrated the write speed of ssd is 4-5 times faster than usual disk

#include <chrono> #include <ctime> #include <fstream> #include <iomanip> #include <iostream> #include <sstream> #include <thread> #include <uuid/uuid. ......
speed write usual disk respectively

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

这个异常在springboot，是一个常见的异常，我们引入了mybatis依赖，确没有在.yml文件中配置数据源，这次我配置了数据源，但是因为有二个application.yml和application-dev.yml，没有指定yml的环境，在application.yml中添加指定dev即可 ......
DataSource datasource configured configure attribute

[ABC205F] Grid and Tokens 题解

[Grid and Tokens](https://www.luogu.com.cn/problem/AT_abc205_f) ### 题目大意 给定 $n$ 个点和一个 $H\times W$ 的网格，每个点可以放置在 $(A_i,B_i)$ 到 $(C_i,D_i)$ 的矩形中或不放，每一行或一 ......
题解 Tokens 205F Grid ABC

[ABC205E] White and Black Balls 题解

[White and Black Balls](https://www.luogu.com.cn/problem/AT_abc205_e) ### 题目大意 将 $n$ 个白球，$m$ 个黑球排成一列，要求满足 $\forall i\in[1,n+m],w_i\le b_i+k$，问存在多少种排法。 ......
题解 White Black Balls 205E

[LeetCode] 1346. Check If N and Its Double Exist 检查整数及其两倍数是否存在

Given an array `arr` of integers, check if there exist two indices `i` and `j` such that : - `i != j` - `0 这道题给了一个整型数组，让检测是否有一个数字和其倍数同时存在的情况。一看到这道题博主就 ......
倍数 整数 LeetCode Double Check

Windows debug and troubleshoot

windows debug and troubleshoot # 一。 使用windbg 调试应用的三种方式： 1. 附件到已经运行的进程； 2. 从windbg运行新的程序； 3. 从windbg分析程序的dump 文件； # 二。 计算机架构（x86,x64 ） # 三。 虚拟内存 1. 通过分 ......
troubleshoot Windows debug and

3. Liouville's Theorem and Ergodicity

## 为什么会涉及到刘维尔定理和遍历性 在前面的关于微正则系综的平衡态的博客里面，我们对于微正则系综做了一些假设，其中最重要的两个假设是： 1. 微正则系综中各个系统出现的概率都是一样大的，没有哪一个处于某个状态的系统备受青睐 2. 在微正则系综里面，我们在计算平衡态的某些宏观性质时，认为对于相空间 ......
Ergodicity Liouville Theorem and 39
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