Open source task scheduling framework under. NET Core

Development and use of HangFire After reading a lot of blogs, Xiaobai wrote a blog for the first time. Recently, there are always problems with the previous task scheduling framework, so I want to find a replacement. The previous framework used Quartz.Net. The convenience of this framework is to support cron expressions for complex date scena ...

Posted on Mon, 27 Apr 2020 22:02:33 -0700 by knashash

A simple API for creating a production environment with Flask - Zhihu

Accessing this api will return a piece of data from the database according to the specified conditions. The conditions (request parameters) include three: Service type: service type City ID: City ID Car type ID Return content: only one piece of data can be queried from the database according to the above three conditions, includi ...

Posted on Mon, 27 Apr 2020 07:36:25 -0700 by Sassci

Spring Boot upload on Linux found no temporary directory and encountered 500 errors

Error Reason On Linux systems, when Spring Boot applications are started with java-jar commands, a tomcat (or undertow) temporary directory is generated in the operating system's / tmp directory, where the uploaded files are first converted to temporary files and saved.Because of the files in the temporary/tmp directory, the system executed th ...

Posted on Sun, 26 Apr 2020 10:07:48 -0700 by farel

Docker Compose Container Arrangement Tool

1. Docker Compose Theory1.1. Origin of Compose ToolsThe Compose project is the official open source project for Docker, responsible for the rapid organization of Docker container clusters. Using the Dockerfile file file described earlier, it is easy to define a separate application container.However, in daily development work, it is common to ...

Posted on Sun, 26 Apr 2020 09:51:14 -0700 by epilator

How to access PostgreSQL database by function calculation

Function Compute: Function calculation It is an event driven all tuoguan computing service. With function computing, you don't need to purchase and manage infrastructure such as servers, just write and upload code. Function calculation provides you with computing resources, runs tasks flexibly and reliably, and provides functions such as log ...

Posted on Sun, 26 Apr 2020 06:41:16 -0700 by cunoodle2

19c gipcd start faild Permission denied (13)

Database version: 19.6Operating system: aix 7100-00-02-1041 (this version is lower than the official recommendation, at least 7105) After the patch is completed, the manual reboot test of the two nodes is normal. Due to the abnormal heartbeat, one node is rebooted, and the node cannot join the cluster. Check that the log card is at the locatio ...

Posted on Fri, 24 Apr 2020 08:04:43 -0700 by kneifelspy

From a CFS Scheduling Case to Talk about the Root Caton of Linux System

The Linux system is a system that feels like Carton. Let me finish: The reason for Carton is that the dispatcher on the Linux kernel never pays attention to business scenarios! The Linux kernel only sees the machine, not the application.It tends to increase throughput from a bottom-up CPU perspective rather than from a top-down business p ...

Posted on Thu, 23 Apr 2020 18:08:37 -0700 by Lyleyboy

PXE - unattended automatic installation of Linux operating system (step record)

DHCP service DHCP server is mainly used to assign IP address and other network parameters to clients in the internal network of the enterprise. In the unattended environment, when the client chooses to start from the network, it will look for the DHCP server by sending broadcast packets. After obtaining the IP address and other parameters from ...

Posted on Thu, 23 Apr 2020 01:46:43 -0700 by cainscripter

Qt Map Writing Integrated Application 20-Multi-Browser Kernel

1. Preface I have been writing Qt programs for so many years, and I prefer to support multiple Qt versions, especially in favor of supporting any Qt version + any system + any compiler. This is not easy to say. First of all, you have to have a lot of versions of test environment, at least a dozen Qt environments, at least four or five operating ...

Posted on Wed, 22 Apr 2020 19:39:31 -0700 by davidohuf

Android advanced: Binder, IBinder, Parcel, AI of Android cross process communication mechanism

###ForewordBinder mechanism is a cross process communication mechanism provided by Android system. This article will start with the introduction of Linux related basic concept knowledge, lead out binder mechanism from the basic concept knowledge, summarize the advantages and disadvantages of binder mechanism and Linux system cross process mech ...

Posted on Wed, 22 Apr 2020 11:18:27 -0700 by boneXXX