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1, Learn about KunlunDB1.1 basic concept & Architecture of kunlundb productsKunlunDB is an open source, high-performance distributed relational database, which supports mixed load (HTAP), PB level data volume management and provides a new generation of database solution with millisecond delay.1.1.1 cluster component architecture diagram1.2 ...

summary During the development of S32K series chips, although the SDK is officially provided and has been updated to version 4.02, and there are Processor expert one click configuration, clock, peripherals, interrupts and other components. After configuration, the driver function can be generated and called by one click dragging, and some of t ...

Learn the layout of WEB mobile terminal and learn the layout record through the streaming layout development of JD project 01 What is the mobile terminal layout The so-called mobile terminal layout is through percentage (streaming layout), flex layout, rem layout and responsive layout. In general development, mobile page development is also d ...

1, Stand alone installation 1.1 elasticsearch and kibana There are three ways to install es and kibana: yum, rpm, tar gz The latter two methods can be used in the Intranet environment when yum needs to open the external network. 1.1.1 es installation How we install rpm this time: Download the rpm file and upload it to the server, and ins ...

3.1 Http protocol development 3.1.1 basic knowledge HTTP (Hypertext Transfer Protocol) protocol is an application layer protocol based on TCP transmission protocol. Its development is the result of the cooperation between the World Wide Web association and the Internet working group IETF. HTTP is an object-oriented protocol belonging to t ...

Several ways to realize scheduled tasks: Timer: This is java. Com that comes with java util. Timer class, which allows you to schedule a java util. TimerTask task. In this way, you can make your program execute at a certain frequency, but it can't run at a specified time. Generally used less. ScheduledExecutorService: also jdk's own class; It ...

preface    due to the speed limit of bram form, under the same urgent time conditions, we still changed back to the way of axidma to reduce the dimension and attack. For the speed of a few megabytes, there is a feeling of killing chickens with an ox knife. There is no way. The original knife is just a little worse. The ox knife is ea ...

Abstract: This paper briefly introduces the relevant knowledge of GaussDB(DWS) function push down attributes, and provides several typical cases related to function attributes for your reference. This article is shared from Huawei cloud community< Introduction to GaussDB(DWS) function push down attribute >, original author: Arrow0lf. ...

Use jieba, forward maximum matching algorithm and backward maximum matching algorithm to segment words Today, we start word segmentation. I have sorted out some lines in Wong Kar Wai's films, with a total of 79 lines, which are from the more famous "east evil and West poison", "spring light and sudden release" and "Cho ...

One day, on a whim, I wanted to play wechat applet and try the cloud development function of wechat, so I had the following simple finished products:This applet contains three functions:Display of product banner picturesDisplay of product list2.1 display of popular products2.2 display of ordinary goodsInstructions for appletsInterested people c ...