Programming VIP

1, Connect Start service ./redis-server redis.conf connect ./redis-cli -h 127.0.0.1 -p 6379 perhaps ./redis-cli 2, Redis data types and application scenarios Redis is a key value storage system written in ANSI C language. Note: in Redis, the command ignores case, (set), and the key does not ignore case (name) 2.1 Key design ...

1. Explanation of NoSQL (non relational database) Why use Nosql Big data age - > springboot + springcloud The beautiful era of stand-alone Mysql! In the 1990s, the number of visits to basic websites was small, and only a single database was enough. Bottleneck of the whole website: 1. If the amount of data is too large, one m ...

redis cluster summary and sentry explanation Why cluster 1. A single redis is unstable. When the redis service goes down, there are no available services. 2. The reading and writing ability of a single redis is limited redis master-slave replication There is only one Master node, and there can be multiple Slave nodes As long as the ne ...

1, Redis overview Redis is an open source high-performance memory based key value pair NoSQL database developed in C language. Compared with the relational database that must be stored according to the specified format, the data format of non relational database is more flexible, which is usually used to check the storage of large-scale da ...

1 Nosql overview 1.1 why use Nosql 1.1.1 the age of single machine MySQL! In the 1990s, the number of visits to a basic website is generally not too large, and a single database is completely enough! At that time, more use of static web ~ servers didn't have much pressure at all! In this case: what is the bottleneck of the whole website ...

catalogue 1, Introduction 2, Install and deploy go and codis 1. Download 2. Deploy go 3. codis environment installation and deployment 4. codis start (1) Start CODIS dashboard (2) Start CODIS proxy (3) Start CODIS server (4) Start CODIS Fe 3, Add group through fe 4, Initialize slot through fe 5, Cluster configuration 1. Add two Re ...

1. redis lock classification The locking commands that redis can use are INCR, SETNX and SET 2. The first lock command INCR The idea of locking is that if the key does not exist, the value of the key will be initialized to 0 first, and then the INCR operation will be performed to add one.   Then, other users add one hour when executing t ...

In the last article, we talked about the construction of Redis cluster and the dynamic addition and deletion of nodes. Here we will briefly review. 30001 ~ 30006 are the clusters we built initially, and 30007 and 30008 are the master-slave nodes dynamically added later. We use the -- cluster info command to see the allocation of master nodes an ...

redis_day02 review Five data types and application scenarios typecharacteristicUsage scenariostringSimple key value type. Value can be string and numberRegular counting (microblog number, fan number and other functions)hashhash is a mapping table of string type field and value. hash is especially suitable for storing objectsStore some data th ...

This article involves many related articles. Please take it yourself if necessary (follow the blogger, let's go to big factory happy) VMware installation of CentOS (nanny tutorial, recommended Collection) VMware+CentOS 7 static IP setting method - Nanny level tutorial, recommended collection CentOS 7 turn off firewall CentOS installation ...