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  • The method of debugging user-mode programs using Windbg kernel debugging connection

    The method of debugging user-mode programs using Windbg kernel debugging connection

    1. Interrupt the target computer; 2. Kd >! process 003. Find the corresponding process of the program to debug; 4. Kd > .process / I TARGETPROCESSADDRESS 5. Kd > g 6. Kd

    Shulou · 2022-06-03 06:46
  • Blockchain vs traditional database: what are the advantages of distributed operation?

    Blockchain vs traditional database: what are the advantages of distributed operation?

    Original address: the concept of http://tech.ifeng.com/a/20180217/44881925_0.shtml blockchain (blockchain) is becoming popular with the prosperity of virtual currencies such as Bitcoin.

    Shulou · 2022-06-03 06:46
  • ThinkSNS+ is based on Laravel master branches, from 1 to 0 to 0.1

    ThinkSNS+ is based on Laravel master branches, from 1 to 0 to 0.1

    What is the year of ThinkSNS+09? the team in Beijing developed ThinkSNS to get involved in the social open source industry. There have been a lot of clients over the years. 2014-2016, two years before maintenance and development of TP-based ThinkSNS, slowly

    Shulou · 2022-06-03 06:46
  • Pre-test model 2

    Pre-test model 2

    In this phase of the test, I put my understanding of pre-testing into practice, which is relatively easy in the late delivery of the project, avoiding more risks caused by the pressure caused by time constraints. I now record my experience here. one。 Establish a common goal when the project is established, with PD,PM, project members, and leave the group behind

    Shulou · 2022-06-03 06:46
  • Ask some small questions about more

    Ask some small questions about more

    Just now I had a whim to try the use of more to check the contents of the file! ~ but when the script is written and run, the script gets stuck and cannot view the contents of the file. Then log in to the target machine and view the contents of the file with more! ~ ~ so very confused! ~! After talking, the script replaced more with ca.

    Shulou · 2022-06-03 06:46
  • There is only one problem with hive distict and count operating reducer

    There is only one problem with hive distict and count operating reducer

    Select count (distinct *) from table; will generate a job with only one reducer execution, which can be changed to the following: select count (*) from (select di)

    Shulou · 2022-06-03 06:46
  • Selenium Manual (2)-- WebDrive

    Selenium Manual (2)-- WebDrive

    [updated at 9:00 on 2016-8-2] Web DriverSelenium 2.0 is a collection of WebDriver API. Selenium-WebDriver is developed to better support dynamic web technology. Web

    Shulou · 2022-06-03 06:46
  • Integrate Acitiviti online process designer (Activiti-Modeler 5.18.0)

    Integrate Acitiviti online process designer (Activiti-Modeler 5.18.0)

    Integrate Acitiviti online process designer (Activiti-Modeler 5.18.0) 1. The preface has always been engaged in a large number of workflow-related projects, and has used many commercial workflow products, including domestic and foreign, although commercial work products

    Shulou · 2022-06-03 06:46
  • Python Automation Test-error Summary

    Python Automation Test-error Summary

    1. When running the program, the following error is reported: HTTPSConnectionPool (host='test.xxxx.com', port=443): Max retries exceeded with url: /

    Shulou · 2022-06-03 06:46
  • Loadrunner Test webservice II: pass soap_reuest

    Loadrunner Test webservice II: pass soap_reuest

    After I had written half of the article before, after saving the draft, I finally found that it was gone, so I had to write it all over again. This time, I would not be so verbose, mainly sharing the steps of the test. There are three ways to test webservice by LoadRunner: 1. Pass web_service_c

    Shulou · 2022-06-03 06:46
  • Selenium learning: keyboard event

    Selenium learning: keyboard event

    The Keys class provides all the keystroke methods on the keyboard. The send_keys method is used to simulate keyboard input of the following code: from time import * from selenium import webdriver# introduces the Keys module

    Shulou · 2022-06-03 06:46
  • Elasticsearch write consistency has been abandoned since version 5.x

    Elasticsearch write consistency has been abandoned since version 5.x

    1 the cause of the problem continues to explore more content of es recently, consult relevant materials (including blog articles and other tutorials), and learn about the principle of writing consistency, which itself is not difficult to understand, but it must be verified in practice to have a deeper experience, just like using e in a project.

    Shulou · 2022-06-03 06:46
  • Common commands of ceph operation and maintenance staff

    Common commands of ceph operation and maintenance staff

    The cluster starts a ceph process to view the monitoring status of the machine to view ceph storage space keys and user monmon status information mon operations msdmsd status and information mds operations osdosd status and information osd operations PG group PG information pg operations poo

    Shulou · 2022-06-03 06:46
  • Software testing guide

    Software testing guide

    As software testers, we need to start testing in the requirements phase, because usually before testing, we need to analyze, summarize and review the test requirements to provide reference for the design of the test plan. So what should we do when we receive the test task? Here is a summary of myself.

    Shulou · 2022-06-03 06:46
  • Solve the cross-region problem of geohash coding

    Solve the cross-region problem of geohash coding

    In the previous article, we proposed to use geohash to solve the performance problem of matching points. the drawback of this algorithm is that if the point near the point is on the boundary, the point near the point may cross the border, that is, the corresponding point cannot be found through the geohash value of the point. For example, the blue dot in the picture needs to be bound.

    Shulou · 2022-06-03 06:46
  • Check that the port is occupied to process learning

    Check that the port is occupied to process learning

    1. Check the PID corresponding to the occupied port, enter the command: netstat-aon | findstr "port number", enter and write down the last digit, that is, PID2. Continue to enter tasklist | findstr "2720", enter, and check Yes

    Shulou · 2022-06-03 06:46
  • Startup of RocketMQ

    Startup of RocketMQ

    Refer to http://www.linuxidc.com/Linux/2015-10/124112.htm192.168.1.201vi / usr/local/tomcat/webapps/appServe

    Shulou · 2022-06-03 06:46
  • Speed-up scheme of self-help analysis for multi-user and large amount of data in banking industry

    Speed-up scheme of self-help analysis for multi-user and large amount of data in banking industry

    The bank self-help analysis system has many users, a large amount of data, and the system speed is required to be very fast. At the same time, the background data warehouse has been burdened with too many applications to provide high-performance queries for a large number of connections. Click on the banking industry multi-user large amount of data self-help analysis speed-up plan, go to the dry college to see how the aggregator can solve this

    Shulou · 2022-06-03 06:45
  • 15. MapReduce-- custom output output

    15. MapReduce-- custom output output

    When we want to customize the output, we first inherit two abstract classes, one is OutputFormat and the other is RecordWriter. The former is mainly about creating RecordWriter, while the latter is mainly implementing the write method to write kv to a file.

    Shulou · 2022-06-03 06:45
  • On the rotation problem of transforming BST search tree into AVL height balanced tree

    On the rotation problem of transforming BST search tree into AVL height balanced tree

    Recently, in reviewing the data structure, I encountered a problem when I saw BST, that is, when deleting or adding nodes in the tree, it is required to ensure a high balance of rows in the tree, that is, to make BST an AVL. Later, I read a lot of materials, saying that LL, RR, LR, RL and so on, did not understand. After studying with my classmates,

    Shulou · 2022-06-03 06:45