Location>code7788 >text

Domestic-memory database tendis-stand-install (perfect replacement of redis)

Popularity：169 ℃/2025-03-27 17:19:29

The good product Tencent can open source still reflects the responsibility and structure of the big companies, which is a good idea. Alibaba has also opened up some good products to talk about later.

Tendis Introduction

Tendis is an open source high-performance distributed storage system developed based on the Redis protocol and has the following characteristics:

Core features

  1. Compatible with Redis protocol: Fully compatible with Redis 5.0 protocol, supporting most Redis commands

  2. Persistent storage: Using RocksDB as storage engine, data persists to disk

  3. Large capacity support: Single instance can support TB data storage

  4. high performance: While ensuring persistence, it still maintains high read and write performance

  5. Distributed architecture: Supports cluster mode, can be horizontally expanded

Architectural design

Tendis adopts a hierarchical architecture:

  • Proxy layer: Responsible for request routing and load balancing

  • Storage layer: consists of multiple Tendis instances, each containing:

    • Redis Compatibility Layer: Processing Protocols and Commands

    • RocksDB storage engine: responsible for data persistence

Applicable scenarios

  1. Redis usage scenarios that require large-capacity persistent storage

  2. Key services that need to ensure data security

  3. Systems that require Redis protocol compatible but want to use persistent storage

  4. Scenarios that require smooth migration from Redis

Key differences from Redis

  1. Storage method: Redis mainly relies on memory, Tendis uses disk storage

  2. Data persistence:Tendis persists all data by default

  3. capacity:Tendis single instance supports larger data volume

  4. performance: Redis has higher pure memory operation performance, while Tendis has slightly lower read and write performance but is more stable

Tendis is particularly suitable for scenarios where Redis protocol compatibility is required but also requires large-capacity persistent storage.

Single-machine installation and deployment

 


 

#Put under /opt# Uncompressiontar -zxvf tendisplus-2.7.0-rocksdb-v8.5.
# start upcd tendisplus-2.7.0-rocksdb-v8.5.3/scripts
./

#Configuration Filetendisplus-2.7.0-rocksdb-v8.5.3/scripts/
 
Enter 
cd /opt/tendis/tendisplus-2.7.0-rocksdb-v8.5.3/bin
./redis-cli -p 51002
# stop tendis

#closurecd tendisplus-2.7.0-rocksdb-v8.5.3/scripts
./


#Basic Operation--Check how many key-value pairs are currently in the database
127.0.0.1:51002> keys *

--View current information
127.0.0.1:51002> info
# Server
redis_version:2.7.0-rocksdb-v8.5.3
redis_git_sha1:cdc389b7
redis_git_dirty:20
redis_build_id:8781195995917743054
redis_mode:standalone
......

--View several databases
127.0.0.1:51002> CONFIG GET databases
1) "databases"
2) "16"


# Connect to database 0 by default, set a key-value pairSET key1 value1

# Switch to database 2SELECT 2

# Set a key-value pair in database 2SET key2 value2

# Switch back to database 0SELECT 0

# Get key-value pairs in database 0GET key1


//Delete all keys in the current databaseflushdb
//Delete all keys in the databaseflushall

Java code operation is almost the same as operating redis, which is easier to get started

How to obtain the installation package:

(1) Login-Register:/

(2) Sign in to get points

(3) Search: Domestic - Memory Database Tendis

 

<Previous Next>