the check elasticsearch numberxxxfor
引入druid查询数据库时间只要超过10秒会报错Communications link failure，The last packet successfully received from the server was xxx milliseconds ago(已解决)
在写项目时候发现springboot(springcloud)项目使用多数据源引入druid的时候，只要查询数据库时间超过10s就会报错： com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failur ......
GPT-Investigation on the Implementation of Rockchip Product's Audio and Video Codec Function
## 1 Is this function of Rockchip product developed on Linux? Yes, this function of Rockchip product is developed on Linux. According to the datasheet ......
The 2023 Guangdong Provincial Collegiate Programming Contest
# A - 算法竞赛 ```cpp #include using namespace std; #define int long long void solve(){ int st , n , ed; cin >> st >> n; map cnt; for( int i = 1 , x ; i > ......
Could not find the DLL(s) 'msvcp140_1.dll'. TensorFlow requires that these DLLs be installed
python -c "from transformers import pipeline; print(pipeline('sentiment-analysis')('we love you'))"Microsoft Visual C++ Redistributable is not install ......
Invalid prop: type check failed for prop “value”. Expected String, Number, got Undefined
记录一个报错问题，之前别的同事写的代码，还看了半天有点无语！！ 下拉选择部门，联动动态赋值责任人下拉列表警告，导致选择责任人的时候无法正确赋值undefined。 究其原因是封装的表单formItem项中传入了下拉选项的映射字段，如下： 而在选择部门的时候又已经把动态数据遍历处理成了标准的label ......
docker evel=error msg="error reading the kernel parameter net.ipv4.vs.expire_nodest_conn" error="open /proc/sys/net/ipv4/vs/expire_nodest_conn: no such file or directory"
我使用的是docker swarm -#报错 evel=error msg="error reading the kernel parameter net.ipv4.vs.expire_nodest_conn" error="open /proc/sys/net/ipv4/vs/expire_nod ......
POJ1714 - The Cave
首先，我们需要读懂这个图是什么图。 第一，忽略外面的环，由“任意两点可到达且路径唯一”的条件可知这是一棵树。 第二，因为每个点的度数是三，所以如果只考虑中间的树，除了 $k$ 以内的点都是叶子，其他的点度数都是三。 考虑什么样的树有很多点度数是三：完全二叉树。但是这个和完全二叉树还有个不同，就是完全 ......
How to use the shell command to get the version of Linux Distributions All In One
How to use the shell command to get the version of Linux Distributions All In One
如何使用 shell 命令获取 Linux 发行版的版本
hostnamectl
cat /etc/os-release
lsb_rel... ......
ElasticSearch使用实例
当涉及到Elasticsearch的Java示例代码时，最常用的客户端是Elasticsearch官方提供的Java高级REST客户端。以下是一个简单的示例，展示了如何使用Java高级REST客户端与Elasticsearch进行交互： 1. 添加依赖项：在您的项目的构建文件（例如pom.xml）中 ......
【Oracle】Clean all objects belong to particular the user but not using drop user xxx cascade
# -- WX:DBAJOE399 -- DEST_SCHEMA=Expected_user_name sqlplus / as sysdba << !EOF set serveroutput on set echo off set feedback off WHENEVER SQLERROR EX ......
【Oracle】Check size of datafiles and tempfile tablespaces used in CDB and PDB
set line 200 pages 999 column name for a10 column tablespace_name for a15 column "MAXSIZE (GB)" format 9,999,990.00 column "ALLOC (GB)" format 9,999,9 ......
Elasticsearch专题精讲—— 操作文档 ——读写文档
操作文档 ——读写文档 1、Introduction https://www.elastic.co/guide/en/elasticsearch/reference/8.8/docs-replication.html Each index in Elasticsearch is divided in ......
Elasticsearch专题精讲——API规范—— 基于 URL 的访问控制
API规范—— 基于 URL 的访问控制 https://www.elastic.co/guide/en/elasticsearch/reference/8.8/api-conventions.html#api-url-access-control Elasticsearch 中的 multi-se ......
nacos服务下线操作时报错：The Raft Group [naming_instance_metadata] did not find the Leader node;caused: The Raft Group [naming_instance_metadata] did not find the Leader node;
【问题描述】 caused: errCode: 500, errMsg: do metadata operation failed ;caused: com.alibaba.nacos.consistency.exception.ConsistencyException: The Raft Grou ......
Elasticsearch专题精讲——API规范—— 一般表达式
API规范—— 一般表达式 1、格式化搜索结果 当任何请求 URL 加 pretty=true 参数时，返回的 JSON 都是格式化的（仅用于调试）。另一个选项是设置 format=yaml，结果以更可读的 yaml 格式返回。 2、可读输出 统计数据以适合人（例如 "exists_time": " ......
Elasticsearch专题精讲——API规范——日期数学表达式
API规范——日期数学表达式 索引名称支持日期解析，这样能够搜索一个时间范围内或某几段时间内的索引，而不是搜索所有索引再筛选结果或维护别名。 限制搜索的索引数量可以减少集群上的负载并提高执行性能。例如，如果在日常日志中搜索错误信息，可以使用日期格式名称模版将搜索严格限制在过去两天内。 几乎所有具有 ......
elasticsearch nested的使用
//创建索引库 PUT product_db { "mappings": { "properties": { "id": { "type": "long" }, "name": { "type": "text", "analyzer": "ik_max_word" }, "keywords": { ......
SpringSecurity集成启动报 In the composition of all global method configuration, no annotation support was actually activated 异常
## 一.异常内容 ```java Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'methodSecurityMetadataSource' def ......
Elasticsearch专题精讲——API规范——多索引
API规范——多索引 Elasticsearch REST API 使用 HTTP 协议，采用 JOSN 格式。 大多数 API 都支持跨多个索引执行，可以使用简单的 test1，test2，test3 表示法（或对所有索引执行，用_all）。它还支持通配符，例如 test* 或 te*t 或 *t ......
The Importance of Particle Size Analysis in Preformulation Studies
Preformulation research is a vital link in drug development, directly affecting the subsequent development process and final application of drugs. ......
【Oracle】Resize your Oracle datafiles down to the minimum without ORA-03297
--In non-multitenant DB set linesize 1000 pagesize 0 feedback off trimspool on with hwm as ( -- get highest block id from each datafiles ( from x$ktfb ......
An attempt has been made to start a new process before the current process has finished its bootstrapping phase.
Traceback (most recent call last): File "<string>", line 1, in <module> File "E:\Eprogramfiles\Anaconda3\lib\multiprocessing\spawn.py", line 116, in s ......
【Oracle】Check the tbs' usage
set feedback off set pagesize 70; set linesize 2000 set head on COLUMN Tablespace format a25 heading 'Tablespace Name' COLUMN autoextensible format a1 ......
推断题（D - The BOSS Can Count Pairs）
D - The BOSS Can Count Pairs #include<bits/stdc++.h> using namespace std; typedef long long ll; #define endl "\n" //数学题关注边界条件和推断其他的值枚举算答案 //nlogn做法 // ......
linux - 报错 Another app is currently holding the yum lock; waiting for it to exit... -解决
报错截图 执行指令 rm -f /var/run/yum.pid 然后再执行需要的指令即可 ......
52.同源策略（Same-Origin Policy）限制了跨域请求No 'Access-Control-Allow-Origin' header is present on the requested resource.
又遇到如下报错了，该如何处理， Access to XMLHttpRequest at 'http://localhost:3000/users' from origin 'http://localhost:5173' has been blocked by CORS policy: No 'Acc ......
循环依赖导致编译或者服务启动报错问题：The dependencies of some of the beans in the application context form a cycle
错误如图: 我的是服务器启动服务时报错： ***************************APPLICATION FAILED TO START*************************** Description: The dependencies of some of the be ......
logstash从oracle12c导入数据到elasticsearch
在logstash的config中添加配置信息cd logstash-5.2.0/config/ vim 12ctoEs.conf input { jdbc { jdbc_driver_library => "/hadoop/logstash-5.2.0/ojdbc8.jar" jdbc_drive ......
Burp Suite Error The client failed to negotiate a TLS connection to chrome.google.com: 443: Received fatal alert: certificate_unknown
Burp Suite Error The client failed to negotiate a TLS connection to chrome.google.com: 443: Received fatal alert: certificate_unknown http://burpsuite ......
Uncovering the Representation of Spiking Neural Networks Trained with Surrogate Gradient
郑重声明：原文参见标题，如有侵权，请联系作者，将会撤销发布！ Published in Transactions on Machine Learning Research (04/2023) ......