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Hadoop[03-03] access count test based on DFS and ZKFC (Hadoop 2.0) Prepare the environment Prepare multiple virtual machines and start dfs and zookeeper See link for details: Hadoop2.0 start DFS and Zookeeper Some data of multiple virtual machines are as follows numberhost nameHost domain nameip address①ToozkyToozky192.168.64.220②Toozky2T ...

1, Basic operation Chinese document of pythonPytorch https://pytorch-cn.readthedocs.io/zh/latest/package_references/torch-optim/ 1, Anaconda basic operation 1,use conda establish Python Virtual environment (in) conda prompt (completed in environment) conda create -n environment_name python=X.X 2,Activate virtual environment (in) conda prom ...

Mybatis Plus quick get start maven configuration <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0. ...

Operator-SDK: Custom CRD for Node request information collection A demo for information collection, which writes a Controller custom CRD to implement Node's request information collection. The primary purpose is to obtain CPU and memory usage. Part of the code refers to the source implementation of describe in the kubectl command. Cluster ...

Gobang Android course homework, Gobang production. The school curriculum is too complicated and there are many skill points. I learn everything, but I don't learn very well. Because JAVA only knows a little, Android development also learned a little fur. This code is written step by step by turning over the textbook by Android Xiaobai, which h ...

skip and xfail preface In actual use, it is often necessary to skip some test cases. pytest provides skip and ifskip to skip the test skip Tag in test function Usage example: @ pytest mark. Skip (reason = "the reason for skipping will be printed in the execution result"), for example 🌰: import pytest def test_1(): print(" ...

Four ways to create objects in Java 1. Create objects through new Creating objects through new is the most common way in Java and the way we first learned to create objects. However, creating objects through new will increase the overall coupling degree. We should pay attention to the impact of coupling degree in our future programming life, ...

1, Reptile preparation 1.1 climbing target The target of the public comment Web crawler is the comment data of the store. The example is shown in the figure below. 1.2 web page analysis First log in, search for bubble water by keyword, and click a store at will to view all the evaluation interfaces, as shown in the figure below. First ...

Large top heap: Based on the complete binary tree, the value of each node is greater than or equal to the value of its left and right child nodes p moves forward through the loop p -- pointer in the main function public static void main(String[] args) { int[] arr = {8,7,3,5,4,9,1,3}; for (int p = arr.length-1;p>=0;p--){ ...

Why use a gateway? All requests can be uniformly standardized and processed through the gateway side, and unified logging, permission verification, flow restriction, interface service security reinforcement, reverse proxy, etc. can also be done. The function of this gateway is equivalent to that you go to the hospital to see a doctor. First ...