Will the deletion of Redis large Key really cause the main thread to block? Do experiments to prove it!

backgroundMany online topics about redis have talked about avoiding causing large keys, because deletion will block the main thread. I've seen a comment that a large key of 2G was deleted in the test, and the system was blocked for about 80 seconds.I was asked how to delete a big key during an interview.Recently reading redis5 0.8 source code. ...

Added by spelman07 on Fri, 28 Jan 2022 02:38:23 +0200

Redis source code analysis (27) radius tree source code analysis

This work adopts Knowledge sharing Attribution - non commercial use - sharing in the same way 4.0 international license agreement License. This work( Zhao Long Li Blog, by Zhao Long Li Creation), by Zhao Long Li Confirm, reprint please indicate the copyright. introduction I believe that Radix Tree is a "mysterious" data structur ...

Added by Leipe_Po on Thu, 27 Jan 2022 19:25:45 +0200

Learning diary [Redis]

Redis 1. Purchase and arrange ECS (https://i.loli.net/2021/06/22/j8ReENFV5G3mtyq.png)] 2. Download and install redis [the external chain image transfer fails. The source station may have an anti-theft chain mechanism. It is recommended to save the image and upload it directly (img-uqcogsbr-1624360166546)( https://i.loli.net/2021/06/22/4sDk5 ...

Added by Otoom on Thu, 27 Jan 2022 18:43:57 +0200

Redis introduction and docker compose cluster construction

Redis cluster https://www.cnblogs.com/ruiyeclub/p/12355073.html 1, Redis related 1. Introduction to Redis Redis (Remote Dictionary Server), namely remote dictionary service, is an ey value storage system that supports master-slave synchronization. It is an open source log and key value database written in ANSI C language, su ...

Added by ichversuchte on Thu, 27 Jan 2022 17:44:52 +0200

Play Redis | Day6 in seven days and integrate Redis with SpringBoot

RedisTemplate and StringRedisTemplate are provided in spring boot data Redis. StringRedisTemplate is a subclass of RedisTemplate. The two methods are basically the same. The difference is mainly reflected in the different data types of operations. Both generics in RedisTemplate are objects, which means that the stored key and value can be ...

Added by forcerecon on Thu, 27 Jan 2022 00:09:55 +0200

Redis transaction operation

1: Basic introduction 1: Basic characteristics of transactions ① Atomicity(atomicity):   A transaction is an atomic operation consisting of a series of actions. The atomicity of the transaction ensures that the action is either fully completed or completely inoperative ② uniformity(consistency):   Once all transaction actions are complete ...

Added by zuperxtreme on Wed, 26 Jan 2022 18:43:50 +0200

Redis implements distributed caching

Redis implements distributed caching IDistributedCache,StackExchangeRedis Redis learning tutorial: Windows installs redis and sets the redis service to start automatically: https://blog.csdn.net/qq_40732336/article/details/122653953 Redis Chinese website https://www.redis.net.cn/ Build a Redis cluster in master / slave mode https://blog.cs ...

Added by jamesjohnson88 on Wed, 26 Jan 2022 14:15:33 +0200

redis - profile resolution conf

1. Where   2. Units   Configure the size unit. Some basic measurement units are defined at the beginning. Only bytes but not bit s are supported Case insensitive 3. INCLUDES contains Similar to our struts 2 configuration file, redis. Can be included through includes Conf can be used as the main gate, including other 4. General (ge ...

Added by pplexr on Tue, 25 Jan 2022 01:14:07 +0200

Doris partition cache

Partition cache Demand scenario Most data analysis scenarios write less and read more. The data is written once and read more frequently. For example, the dimensions and indicators involved in a report are calculated at one time in the early morning, but there are hundreds or even thousands of page accesses every day. Therefore, it is very su ...

Added by ph3n0m on Mon, 24 Jan 2022 22:50:10 +0200

Tencent cloud lightweight server builds an Internet accessible redis5 through Docker X cluster

Record / Zhu JiqianRecently, I bought a 4-core 16 Tencent cloud lightweight application server, which cost me nearly 400 oceans. I plan to build a pile of docker component clusters. First, I plan to build a redis cluster through docker. I plan to use three ports, 700170027003.Tencent ECS has firewall restrictions, so these six ports need to be ...

Added by StirCrazy on Mon, 24 Jan 2022 17:40:51 +0200