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Can Redis have multiple databases?
As you may know, Redis has the ability to have multiple databases in a single instance. These databases have entirely separate keyspaces and you can switch between them using the SELECT command. The reality is that databases don’t scale well for a number of reason, like active expire of keys and VM.
How many databases support Redis?
16 databases
Out of the box, every Redis instance supports 16 databases. The database index is the number you see at the end of a Redis URL: redis://localhost:6379/0 . The default database is 0 but you can change that to any number from 0-15 (and you can configure Redis to support more databases, look in redis. conf).
Can Redis replace database?
Redis is a data store that offers performance benefits over traditional databases. However, far from being a replacement for databases, it’s a small, fast, easy-to-use tool to supplement your existing application.
Is Redis a Microservice?
Redis can be widely used in microservices architecture. It is probably one of the few popular software solutions that may be leveraged by your application in so many different ways. Depending on the requirements, it can act as a primary database, cache, or message broker.
Is it possible to use Redis for multiple microservices?
it’s possible to use the same Redis for multiple microservices, just make sur to well prefix your redis cache key to avoid conflict between all microservices. You can use multi db in the same redis instance (i.e one for each microservice) but it’s discouraged because Redis is single threaded.
Can you keep all data in one Redis instance?
Ans – Yes you can keep all the data under single redis instance, all you need to do is to set that data using different key Name. As redis is basically a Key-Value Database. Should every microservice have its own cache database in redis?
How to use Redis Cache as a container?
In eShopOnContainers, the basket-api microservice uses a Redis cache running as a container. That basketdata container is defined as part of the multi-container docker-compose.yml file, as shown in the following example:
Which is Redis image does eshoponcontainers use?
The Redis image includes expose:6379 (the port used by Redis), so standard container linking will make it automatically available to the linked containers. In eShopOnContainers, the basket-api microservice uses a Redis cache running as a container.