Using Physical Backup to Build Slave Database in Aliyun RDS Database

(1) Background introductionBecause the database uses RDS database of Aliyun, when all the reads and writes are on one server, CPU load is higher. Especially in the business period, concurrent access is more, resulting in greater business pressure. After inquiry, master-slave replication can be used, RDS database can only be used for writing, a ...

Posted on Fri, 21 Jun 2019 11:26:06 -0700 by tabs

Factory mode for java

This story focuses on "how to bake some loosely coupled OO designs" through a pizza store and gets rid of complex dependencies through a factory model. At the beginning, we talked about the keyword new in java, and we always emphasized that programming should not be done for implementation, but every time we use new to create ob ...

Posted on Fri, 21 Jun 2019 09:59:39 -0700 by aleczapka

K8S DIY SERIES - 2.4 - Service

Preface In the previous experiment 2.3 - PV & PVC, we bind wordpress+mysql's Deployment to PVC and successfully save mysql's data on the PV storage volume.But mysql as a database application, when horizontal expansion, is a number of independent database instances, data are separated from each other, resulting in inconsistent state between ...

Posted on Thu, 20 Jun 2019 16:27:02 -0700 by Angus

Fast RCNN trains its own dataset

Fast RCNN trains its own dataset (3 training and detection) Original at http://www.cnblogs.com/louyihang-loves-baiyan/p/4906690.html For transshipment, please indicate the origin, the blog of Lou Bian (y) voyage, http://www.cnblogs.com/louyihang-loves-baiyan/ https://github.com/YihangLou/fast-rcnn-train-another-dataset Thi ...

Posted on Thu, 20 Jun 2019 13:28:28 -0700 by cueball2000uk

Spatial Composite Index Accelerates Spatial Search

Label PostgreSQL, PostGIS, Composite Index, btree_gist, Shared Bicycle background With the popularity of mobile Internet, spatial data has become the standard of most enterprise data, such as travel, express, etc. Usually, the query of data will have location distance search, and it will also be accompanied by other attributes filtering, oth ...

Posted on Wed, 19 Jun 2019 15:27:21 -0700 by daniish

JDBC links to local MySQL databases, creates table structures, and adds data and queries

First, we need to download the JDBC jar package. In this project, jar is placed in the lib directory. You can use my mysql-connector-java-5.1.42-bin.jar package directly. Then add a Main, link MySQL database with JDBC, create table structure, add data and query data Specific code: public class Main{ public static void main(String[] a ...

Posted on Wed, 19 Jun 2019 12:14:32 -0700 by ramjai

About nginx_auth_mysql authentication module

My previous blog "Installation and configuration of httpd 2.x, mod_auth_mysql module and support for aes encryption" As mentioned in the article mod_auth_mysql Module is a third-party authentication module for Apache httpd. In this article, we will introduce a module corresponding to Nginx. nginx_auth_mysql. Dead workdownload nginx_au ...

Posted on Wed, 19 Jun 2019 11:36:04 -0700 by allenmak

Android connects to MySql database through JDBC

Android connects to MySql database through JDBC Adding Access Permissions to Networks in android Add permissions to Android Manifest file ... </application> <uses-permission android:name="android.permission.INTERNET" /> </manifest> Close Windows Firewall (Click on the control panel, find the Windows firew ...

Posted on Wed, 19 Jun 2019 10:56:12 -0700 by lj11

Redis Server Management Related Commands

Client-side correlation View Client List CLIENT LIST > Available since 2.4.0. > > Time complexity: O(N) N is the number of client connections. Syntax: CLIENT LIST Explain: The Redis CLIENT LIST command is used to return all client information and statistics connected to the server. Return value: A unique string in the following format: ...

Posted on Tue, 18 Jun 2019 12:59:11 -0700 by newhen

SQL Server Parameter Sniffing and Its Improvement

Original address 1. Use Exec() to run dynamic SQLcreate procedure Nosniff1(@i int) as declare @cmd varchar(1000); set @cmd = 'SELECT count(b.SalesOrderID),sum(p.weight) from [Sales].[SalesOrderHeader] a inner join [Sales].[SalesOrderDetail] b on a.SalesOrderID = b.SalesOrderID inner join Production.Product p on b.ProductID = p.ProductID wh ...

Posted on Tue, 18 Jun 2019 12:18:33 -0700 by nadman123