1. Overview 1 What is a multi-tenant architecture? Multi-tenant architecture refers to supporting simultaneous access by multiple tenants (Tenant) in an application, each tenant has independent resources and data, and is completely isolated from each other. In layman’s terms, multi-tenancy is to “split” an application into multiple independent instances according to customer needs, and each […]
Tag: port
Use Screw (screw) to quickly export database table structure documents
Use Screw (screw) to quickly export database table structure documents Official website address: https://gitee.com/leshalv/screw/ There are a lot of information on the Internet. It feels that there is not much difference from the official website. It will be a bit confusing for a person who only needs to write database structure documents. For example, I […]
Video formats and codecs that need to be supported
Video Format Decoder MP4 MKV AVI FLV MOV H.264 MPG/MPEG /DVD-Video/Blu-ray Disc/DVB Digital TV/HDV MPEG-2 WebM/MKV/AVI VP8 WebM/MKV/MP4 VP9 MP4 / MKV / MOV / AVI HEVC HEVC / AVC / MPEG-4 HEIF 3GP / AVI / FLV / MP4 H.263 AVI/MKV/MP4 DivX AVI/MP4/MKV XviD H.264 H.264 (or AVC) is a video compression format, which […]
XGBoost of ML: Based on the Titanic data set (filling/label encoding/reasoning data reprocessing) using the XGBoost algorithm (model export and loading reasoning of json files) to realize the application case of binary classification prediction
XGBoost of ML: Based on the Titanic data set (filling/label encoding/reasoning data reprocessing) using the XGBoost algorithm (model export and loading reasoning of json files) to realize the application case of binary classification prediction Directory Based on the Titanic data set (one-hot encoding/label encoding) using the XGBoost algorithm (model export and loading reasoning of json […]
MySQL data export csv file – a lot
Recently, I encountered a demand for downloading files. Exporting the data in mysql to a file in csv format should be quite simple. However, the amount of data is too large, and there are millions of data in the table. Conditions of hundreds of thousands of data. Step 1: To optimize the sql index, return […]
Baumer Industrial Camera Baumer Industrial Camera How to save and load various parameters of the camera by saving and importing files (C#)
Baumer Industrial Camera Baumer Industrial Camera How to save and load various parameters of the camera (C#) by saving and importing files Baumer industrial camera Technical background of UserSet in Baumer industrial camera BGAPISDK Camera configuration file code case sharing Step 1: Save the current camera parameter setting doUserSetStore as a file Step 2: Load […]
Front-end export file | fileSaver.js source code reading
1. Learning objectives Understand the core implementation of fileSaver.js Do-it-yourself easy export How to use files in Vue 2. Source code debugging 1. fileSave.js library address: https://github.com/eligrey/FileSaver.js 1. git clone https://github.com/eligrey/FileSaver.js.git 2. cd FileSaver.js-master/src directory 3. Create a new test.html under src, copy the code below <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″ /> <meta […]
Flink consumes kafka and reports akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka.tcp://flink@xxx]]after x
Article directory background: Phenomena and Analysis solution Summarize: expand refer to Background: Recently, the company where the author works is researching and using flink, because the company only has the author as a big data developer. The author is fortunate to lead this research, but we are also newbies, and we will share some pitfalls […]
Error reporting when running kettle in Linux environment
Background It runs normally in the Wins environment, but when the same converted file is uploaded to Linux, an error is reported. 1. Kettle client running interface 2. The cmd command line runs normally in the Wins environment Run the code under the cmd command line: d: cd D:\tools\pdi-ce-9.1.0.0-324\data-integration D:\tools\pdi-ce-9.1.0.0-324\data-integration>pan.bat /file:D:\tools\pdi-ce-9.1.0.0-324\data-integration\samples\jobs\insert_103_table_output. ktr /level:Basic > D:\tools\pdi-ce-9.1.0.0-324\data-integration\logs\insert_103_table_output_01.log […]
A picture control that supports rotation, scaling, and panning of large pictures
Preface: At present, it is difficult to find a picture control on the Internet that can support the rotation and scaling of large pictures. Found only supports panning. There is no way but to write one yourself. Implementation principle: 1. Incoming image path 2. Calculate the actual width and height of the picture, compare the […]