Redis sentry -- cache server

Li Guodong 2020-11-11 18:21:14
redis sentry cache server

redis sentry

Website :

explain : The cache server can effectively improve the access efficiency of users

1. matters needing attention :

A: The data structure of cache should be selected as K-V structure , as long as K Only then the result must be the same
B: It's impossible to cache the total data all the time , Memory data needs to be optimized periodically ,LRU Algorithm ....
C: The running data of cache should be fast ,C Language implementation ... Running in memory
D: If the data of the cache run is in memory , Add power failure or downtime , Memory data is lost directly loss ; Realize the persistence operation of memory data ( disk )

2.Redis Cache server :

Concept : It's an open source , Data structure storage system in memory , It can be used in databases , Caching and message middleware ; Support multiple types of data structures . Such as : character string (string) hash (hashes) list (list) aggregate (sets) Ordered set (sorted sets);

3.Redis Installation

A: Get into src root directory => Upload compressed package => perform tar -zxvf redis-5.0.4.tar.gz Unzip the file => Modify the file storage location => mv redis-5.0.4 redis Change the file name ;

B: install redis Get into redis root directory cd redis => make ( compile ) => make install( install )

4.Redis.conf Modification of configuration file :

(bind Express ip binding )

First step : Note binding address
The second step :yes Change to no
The third step : Turn on background start no Change to yes


A: Enter the following directory => open redis.conf

5.Redis Start of :

A: start-up Redis: stay redis Follow directory redis-server redis.conf

B: Check the process ps -ef |grep redis

C: Get into redis client :redis-cli -p 6379 (-p Represents the port number )

D:set key vail form

E: close redis: Two ways
1. direct kill
2.reis-cli -p 6379 shutdown

6.Redis The order of :

1.String type


2.Hash type

explain : You can use hash types to hold object and property values
Example :User object {id:2,name: Xiao Ming ,age:19}

3.List type

explain :Redis Medium List A set is a double ended loop list , Data can be inserted from left and right directions respectively .
List Collections can be used as queues , It can also be used as a stack
queue : The direction of storing data is opposite to that of obtaining data
Stack : The direction of storing data is the same as that of obtaining data

4.Redis Business order

explain :redis Operations in can add transaction support . A task can consist of more than one redis Command complete , If there is a command failure that causes the storage failure . Need to implement transaction rollback .

6.Redis Integration of mybatis

A: add to jar package


B: Test for connectivity :
C:setnx(k, v); senior api Determine if the data exists If there is data, it is not processed

D:setex(k, Time ,v) ( Set failure time and set value ) Method execution either succeeds or fails ;
jedis.setex("2007",100," Test time )


本文为[Li Guodong]所创,转载请带上原文链接,感谢

  1. 【计算机网络 12(1),尚学堂马士兵Java视频教程
  2. 【程序猿历程,史上最全的Java面试题集锦在这里
  3. 【程序猿历程(1),Javaweb视频教程百度云
  4. Notes on MySQL 45 lectures (1-7)
  5. [computer network 12 (1), Shang Xuetang Ma soldier java video tutorial
  6. The most complete collection of Java interview questions in history is here
  7. [process of program ape (1), JavaWeb video tutorial, baidu cloud
  8. Notes on MySQL 45 lectures (1-7)
  9. 精进 Spring Boot 03:Spring Boot 的配置文件和配置管理,以及用三种方式读取配置文件
  10. Refined spring boot 03: spring boot configuration files and configuration management, and reading configuration files in three ways
  11. 精进 Spring Boot 03:Spring Boot 的配置文件和配置管理,以及用三种方式读取配置文件
  12. Refined spring boot 03: spring boot configuration files and configuration management, and reading configuration files in three ways
  13. 【递归,Java传智播客笔记
  14. [recursion, Java intelligence podcast notes
  15. [adhere to painting for 386 days] the beginning of spring of 24 solar terms
  16. K8S系列第八篇(Service、EndPoints以及高可用kubeadm部署)
  17. K8s Series Part 8 (service, endpoints and high availability kubeadm deployment)
  18. 【重识 HTML (3),350道Java面试真题分享
  19. 【重识 HTML (2),Java并发编程必会的多线程你竟然还不会
  20. 【重识 HTML (1),二本Java小菜鸟4面字节跳动被秒成渣渣
  21. [re recognize HTML (3) and share 350 real Java interview questions
  22. [re recognize HTML (2). Multithreading is a must for Java Concurrent Programming. How dare you not
  23. [re recognize HTML (1), two Java rookies' 4-sided bytes beat and become slag in seconds
  24. 造轮子系列之RPC 1:如何从零开始开发RPC框架
  25. RPC 1: how to develop RPC framework from scratch
  26. 造轮子系列之RPC 1:如何从零开始开发RPC框架
  27. RPC 1: how to develop RPC framework from scratch
  28. 一次性捋清楚吧,对乱糟糟的,Spring事务扩展机制
  29. 一文彻底弄懂如何选择抽象类还是接口,连续四年百度Java岗必问面试题
  30. Redis常用命令
  31. 一双拖鞋引发的血案,狂神说Java系列笔记
  32. 一、mysql基础安装
  33. 一位程序员的独白:尽管我一生坎坷,Java框架面试基础
  34. Clear it all at once. For the messy, spring transaction extension mechanism
  35. A thorough understanding of how to choose abstract classes or interfaces, baidu Java post must ask interview questions for four consecutive years
  36. Redis common commands
  37. A pair of slippers triggered the murder, crazy God said java series notes
  38. 1、 MySQL basic installation
  39. Monologue of a programmer: despite my ups and downs in my life, Java framework is the foundation of interview
  40. 【大厂面试】三面三问Spring循环依赖,请一定要把这篇看完(建议收藏)
  41. 一线互联网企业中,springboot入门项目
  42. 一篇文带你入门SSM框架Spring开发,帮你快速拿Offer
  43. 【面试资料】Java全集、微服务、大数据、数据结构与算法、机器学习知识最全总结,283页pdf
  44. 【leetcode刷题】24.数组中重复的数字——Java版
  45. 【leetcode刷题】23.对称二叉树——Java版
  46. 【leetcode刷题】22.二叉树的中序遍历——Java版
  47. 【leetcode刷题】21.三数之和——Java版
  48. 【leetcode刷题】20.最长回文子串——Java版
  49. 【leetcode刷题】19.回文链表——Java版
  50. 【leetcode刷题】18.反转链表——Java版
  51. 【leetcode刷题】17.相交链表——Java&python版
  52. 【leetcode刷题】16.环形链表——Java版
  53. 【leetcode刷题】15.汉明距离——Java版
  54. 【leetcode刷题】14.找到所有数组中消失的数字——Java版
  55. 【leetcode刷题】13.比特位计数——Java版
  56. oracle控制用户权限命令
  57. 三年Java开发,继阿里,鲁班二期Java架构师
  58. Oracle必须要启动的服务
  59. 万字长文!深入剖析HashMap,Java基础笔试题大全带答案
  60. 一问Kafka就心慌?我却凭着这份,图灵学院vip课程百度云