Tag：Subsection
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How delicious! I got the advanced manual of spring microservice architecture recommended by Ali and bytek
Write in front Nowadays, microservice architecture is very popular, and using microservices to build systems will also bring clearer business division and scalability. At the same time, there are various technology stacks supporting microservices, and spring cloud is the leader of these technologies. As a new generation of service framework, the slogan of spring cloud […]
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Elasticsearch uses series – basic queries and aggregate queries +sql plug-ins
Elasticsearch uses series es introduction and environment construction Elasticsearch use series -es basic operations of adding, deleting, checking and modifying +ik word segmentation Elasticsearch uses series – basic queries and aggregate queries +sql plug-ins Elasticsearch uses series – Net6 docking elasticsearch Elasticsearch uses series docker to build elasticsearch clusters 1、 Basic query 1.and query must […]
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[issue 21] Zhihu society recruits golang engineers
one side Distributed system consistency Raft algorithm details Lock problem, CAS, lock practice? Mutex introduction of go standard library Bitask stores the details of the model. Since it is an additional write, how to do the old data GC? How to restore the index after restart? How does LSM tree compare to B + tree? […]
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Scan port of learning penetration test
Series articles： Information collection of learning penetration test Scan port of learning penetration test Recognition operating system for learning penetration testing A brief description of vulnerability scanning in learning penetration testing Remember the proxy server of learning penetration test (keep a low profile) Enumeration of learning penetration tests Vulnerability scanning of learning penetration testing Vulnerability […]
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[mathematical modeling] 3 Interpolation algorithm
1. Framework 2. Plot function usage (piecewise cubic Hermite interpolation) 3. Spline function (cubic spline interpolation) 4. N-dimensional data interpolation Interpolation algorithm can be used for prediction
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Prediction of vehicle braking distance by R language piecewise linear regression analysis
Original link:http://tecdat.cn/?p=21557 Piecewise regression, as the name suggests, the regression formula is “piecewise” fitting. It is flexible for the situation that the response variable has a variety of response states with the change of the independent variable value. When it is difficult to predict or explain the two through a regression model, it is advisable […]
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Leetcode-067-binary summation
Binary summation Title Description: give you two binary strings and return their sum (expressed in binary). The input is a non empty string and contains only the numbers 1 and 0. See leetcode’s official website for an example. Source: leetcodeLink: https://leetcode-cn.com/probl…The copyright belongs to Lingkou network. For commercial reprint, please contact the official authorization, and […]
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Where is Kafka metadata information stored and how to view it
This paper mainly describes the following two parts: Storage mode of Kafka data;Kafka how to find message through offset.1. PrefaceWrite and introduce several important concepts of Kafka (refer to the brief introduction of Kafka in the previous blog): Broker: message middleware processing node. A Kafka node is a broker. Multiple brokers can form a Kafka […]
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Memory segmentation
The program is composed of several logical segments, such as code segments, data segments, stack segments and heap segments. Different segments have different properties, so they are separated in the form of segmentation. How do virtual addresses and physical addresses map under segmentation mechanism? The virtual address under the segmentation mechanism consists of two parts, […]
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Fluent custom radio control
In the development of fluent application, we often encounter various radio effects. Although the radio component is officially provided, it can not meet our actual development needs, so we often need to customize the control to meet the usual development needs. The following describes the radio options used in normal development: Custom segmentbar You will […]
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Isn’t paging enough? Why segment? And paragraph page style?
Hello, I’m yes. You’ve probably heard of segmentation, paging, and page segmentation about memory access. But why segment? Why pagination? With paging, why segment? This requires a look at the development of history. After knowing history, you will know that all this is natural. These concepts are not forced out. text On November 15, 1971, […]
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Can we only use distributed locks to optimize the high concurrency of thousands of orders per second?
Let’s talk about an interesting topic today How to optimize the concurrency of distributed locks in the scenario of thousands of orders per second? Background introduction First of all, let’s look at the background of this problem? Some time ago, a friend was interviewing outside. Then one day, he came to me and said: […]