Essential tools:
redis-3.0.0.tar
redis-3.0.0.gem (ruby and redis interface)
Analysis:
First of all, the number of clusters requires a base number. Here is a simple redis cluster (6 redis instances for clustering).
Operates on one server, so only 6 different port numbers are required. They are: 7001, 7002, 7003, 7004, 7005, 7006.
Steps:
1. Upload redis-3.0.0.tar to the server (specify your own software directory), and decompress redis-3.0.0.tar.
2. Install the c language environment (after installing centos, it comes with the c language environment)
yum install gcc-c++
3. Enter the redis-3.0.0 directory
make
4. Install redis to the /usr/local/redis directory
make install prefix=/usr/local/redis
5. Check whether the installation is successful (the bin directory appears)
6. Start redis on the front end ( Enter the bin directory in the picture above)
./redis-server (open)
./redis-cli shutdown (close)
7. Backend startup
You need to copy the redis.conf file in the redis decompressed source package (under the redis-3.0.0 directory) to the bin directory
Modify redis.conf file, change daemonize to yes first use vim redis.conf
Use the command backend to start redis
Execute in the bin directory./redis-server redis.conf
Check whether the startup is successful
How to close the backend startup:
./redis-cli shutdown
The above is a separate redis installation, then Come down and build a cluster!
Install ruby
yum install ruby yum install rubygems
Upload the following files to the linux system
redis-3.0.0.gem (ruby and redis interface)
Enter the directory and execute: gem install redis-3.0.0.gem
Copy the following files in the src directory under the redis-3.0.0 package to /usr/local/ redis/redis-cluster/
Prerequisite: Create a new redis-cluster directory first
Building a cluster requires at least 3 hosts. If each host If you configure another slave machine, at least 6 machines are required.
The port design is as follows: 7001-7006
Step 1: Copy a 7001 machine
Enter the /usr/local/redis/ directory and execute cp bin ./redis- cluster/7001 –r
Step 2: If persistent files exist, delete
rm -rf appendonly.aof dump.rdb
Step 3: Set cluster parameters
Step 4: Modify the port
Step 5: Copy the 7002-7006 machine
Give me the directory structure of the desktop system:
Next, set up one-click to start all redis or close the redis group:
First, create a new file. You can use vim to open a file that does not exist, and then The save exists. (The start-all.sh and shutdown-all.sh in the picture above are the ones I created)
start-all.sh:
cd 7001 ./redis-server redis.conf cd .. cd 7002 ./redis-server redis.conf cd .. cd 7003 ./redis-server redis.conf cd .. cd 7004 ./redis-server redis.conf cd .. cd 7005 ./redis-server redis.conf cd .. cd 7006 ./redis-server redis.conf cd ..
shutdow-all.sh:
cd 7001 ./redis-cli -p 7001 shutdown cd .. cd 7002 ./redis-cli -p 7002 shutdown cd .. cd 7003 ./redis-cli -p 7003 shutdown cd .. cd 7004 ./redis-cli -p 7004 shutdown cd .. cd 7005 ./redis-cli -p 7005 shutdown cd .. cd 7006 ./redis-cli -p 7006 shutdown cd ..
Next modify the permissions of those two files and set them as startable script files
chmod u+x start-all.sh chmod u+x shutdown-all.sh
Next use ruby to connect these clusters for management
/redis-trib.rb create --replicas 1 192.168.78.133:7001 192.168.78.133:7002 192.168.78.133:7003 192.168.78.133:7004 192.168.78.133:7005 192.168.78.133: 7006
appears:
connecting to node 192.168.242.137:7001: ok connecting to node 192.168.242.137:7002: ok connecting to node 192.168.242.137:7003: ok connecting to node 192.168.242.137:7004: ok connecting to node 192.168.242.137:7005: ok connecting to node 192.168.242.137:7006: ok >>> performing hash slots allocation on 6 nodes... using 3 masters: 192.168.242.137:7001 192.168.242.137:7002 192.168.242.137:7003 adding replica 192.168.242.137:7004 to 192.168.242.137:7001 adding replica 192.168.242.137:7005 to 192.168.242.137:7002 adding replica 192.168.242.137:7006 to 192.168.242.137:7003 m: 8240cd0fe6d6f842faa42b0174fe7c5ddcf7ae24 192.168.242.137:7001 slots:0-5460 (5461 slots) master m: 4f52a974f64343fd9f1ee0388490b3c0647a4db7 192.168.242.137:7002 slots:5461-10922 (5462 slots) master m: cb7c5def8f61df2016b38972396a8d1f349208c2 192.168.242.137:7003 slots:10923-16383 (5461 slots) master s: 66adf006fed43b3b5e499ce2ff1949a756504a16 192.168.242.137:7004 replicates 8240cd0fe6d6f842faa42b0174fe7c5ddcf7ae24 s: cbb0c9bc4b27dd85511a7ef2d01bec90e692793b 192.168.242.137:7005 replicates 4f52a974f64343fd9f1ee0388490b3c0647a4db7 s: a908736eadd1cd06e86fdff8b2749a6f46b38c00 192.168.242.137:7006 replicates cb7c5def8f61df2016b38972396a8d1f349208c2 can i set the above configuration? (type 'yes' to accept): yes >>> nodes configuration updated >>> assign a different config epoch to each node >>> sending cluster meet messages to join the cluster waiting for the cluster to join.. >>> performing cluster check (using node 192.168.242.137:7001) m: 8240cd0fe6d6f842faa42b0174fe7c5ddcf7ae24 192.168.242.137:7001 slots:0-5460 (5461 slots) master m: 4f52a974f64343fd9f1ee0388490b3c0647a4db7 192.168.242.137:7002 slots:5461-10922 (5462 slots) master m: cb7c5def8f61df2016b38972396a8d1f349208c2 192.168.242.137:7003 slots:10923-16383 (5461 slots) master m: 66adf006fed43b3b5e499ce2ff1949a756504a16 192.168.242.137:7004 slots: (0 slots) master replicates 8240cd0fe6d6f842faa42b0174fe7c5ddcf7ae24 m: cbb0c9bc4b27dd85511a7ef2d01bec90e692793b 192.168.242.137:7005 slots: (0 slots) master replicates 4f52a974f64343fd9f1ee0388490b3c0647a4db7 m: a908736eadd1cd06e86fdff8b2749a6f46b38c00 192.168.242.137:7006 slots: (0 slots) master replicates cb7c5def8f61df2016b38972396a8d1f349208c2 [ok] all nodes agree about slots configuration. >>> check for open slots... >>> check slots coverage... [ok] all 16384 slots covered.
It means success!
Test it, enter the 7001 directory and execute: ./redis-cli -h 192.168.242.137 -p 7001 –c
The above is the detailed content of How to build a redis cluster under centos. For more information, please follow other related articles on the PHP Chinese website!

Redis goes beyond SQL databases because of its high performance and flexibility. 1) Redis achieves extremely fast read and write speed through memory storage. 2) It supports a variety of data structures, such as lists and collections, suitable for complex data processing. 3) Single-threaded model simplifies development, but high concurrency may become a bottleneck.

Redis is superior to traditional databases in high concurrency and low latency scenarios, but is not suitable for complex queries and transaction processing. 1.Redis uses memory storage, fast read and write speed, suitable for high concurrency and low latency requirements. 2. Traditional databases are based on disk, support complex queries and transaction processing, and have strong data consistency and persistence. 3. Redis is suitable as a supplement or substitute for traditional databases, but it needs to be selected according to specific business needs.

Redisisahigh-performancein-memorydatastructurestorethatexcelsinspeedandversatility.1)Itsupportsvariousdatastructureslikestrings,lists,andsets.2)Redisisanin-memorydatabasewithpersistenceoptions,ensuringfastperformanceanddatasafety.3)Itoffersatomicoper

Redis is primarily a database, but it is more than just a database. 1. As a database, Redis supports persistence and is suitable for high-performance needs. 2. As a cache, Redis improves application response speed. 3. As a message broker, Redis supports publish-subscribe mode, suitable for real-time communication.

Redisisamultifacetedtoolthatservesasadatabase,server,andmore.Itfunctionsasanin-memorydatastructurestore,supportsvariousdatastructures,andcanbeusedasacache,messagebroker,sessionstorage,andfordistributedlocking.

Redisisanopen-source,in-memorydatastructurestoreusedasadatabase,cache,andmessagebroker,excellinginspeedandversatility.Itiswidelyusedforcaching,real-timeanalytics,sessionmanagement,andleaderboardsduetoitssupportforvariousdatastructuresandfastdataacces

Redis is an open source memory data structure storage used as a database, cache and message broker, suitable for scenarios where fast response and high concurrency are required. 1.Redis uses memory to store data and provides microsecond read and write speed. 2. It supports a variety of data structures, such as strings, lists, collections, etc. 3. Redis realizes data persistence through RDB and AOF mechanisms. 4. Use single-threaded model and multiplexing technology to handle requests efficiently. 5. Performance optimization strategies include LRU algorithm and cluster mode.

Redis's functions mainly include cache, session management and other functions: 1) The cache function stores data through memory to improve reading speed, and is suitable for high-frequency access scenarios such as e-commerce websites; 2) The session management function shares session data in a distributed system and automatically cleans it through an expiration time mechanism; 3) Other functions such as publish-subscribe mode, distributed locks and counters, suitable for real-time message push and multi-threaded systems and other scenarios.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Mac version
God-level code editing software (SublimeText3)

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Notepad++7.3.1
Easy-to-use and free code editor

WebStorm Mac version
Useful JavaScript development tools
