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Home Database Redis How redis supports distributed

How redis supports distributed

Apr 10, 2025 pm 05:30 PM
redis Distributed deployment

Redis implements distributed through the following methods: sharding: scattering data to multiple Redis instances; master-slave replication: copying the data of the master instance to multiple slave instances; cluster: multiple Redis instances form a cluster to store and maintain data set consistency; Sentinel: automatically performs failover to improve high availability and reliability; Redis proxy: acts as an intermediate layer between the client and Redis instance, simplifying interaction.

How redis supports distributed

How Redis supports distributed

Redis is a storage solution for distributed in-memory data, which supports the distribution of data on multiple servers. It implements distributed method by:

1. Sharding

Redis uses sharding to spread data across multiple Redis instances. Each shard is an independent Redis instance that stores part of the dataset. The purpose of sharding is to distribute the load across multiple servers, improve performance and improve availability.

2. Master-slave copy

Redis supports master-slave replication, where one master Redis instance copies data to multiple slave Redis instances. The slave instance is in sync with the primary instance and can take over the service if the primary instance fails. Master-slave replication improves high availability and reliability of data.

3. Cluster

Redis cluster is a distributed deployment of Redis, in which multiple Redis instances form a cluster. Each instance in the cluster stores a portion of the data set and communicates with other instances to maintain data consistency. Redis clusters provide high throughput, high availability, and scalability.

4. Sentinel

Redis Sentinel is a high availability solution for monitoring Redis instances and automating failover. The Sentinel node monitors the Redis instance and, if the primary instance fails, elects a new primary instance from the instance. Sentinels improve the availability and reliability of Redis clusters.

5. Redis Agent

Redis proxy is a lightweight service that acts as an intermediate layer between Redis clients and Redis instances. A proxy can route client requests to the appropriate shard or instance and handle tasks such as failover. The Redis proxy simplifies the interaction between clients and distributed Redis deployments.

Through these methods, Redis supports distributed, achieving high performance, high availability and scalability. It enables organizations to store and manage data efficiently in their distributed systems.

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