Understanding Redis and the Way It Works

How To Manage Hashes in Redis | DigitalOcean

Redis is an abbreviation for Remote directory service, and as per the GitHub repository, it is a data structure that stores in memory. It is a disk preserving, value database that supports several types of data and data structures. In simpler words, it supports key-value-based strings (mapped) for storing as well as retrieving data. Redis also supports several data structures of complex nature like sets, lists, etc. Let’s move further and know more about Redis on shared hosting, the data structure it supports, and its unique features.

Redis & its benefits

Redis has several advantages, and it is a highly replicated, open-source, performance-oriented, and non-relational type of caching server and database. It functions with mapping keys with a predefined data model, and Redis cloud pricing is also affordable. Some of its other advantages include-

  • Caching system based on the mapped key value that could be compared with Memcached
  • Schemaless means there are no data tables or rigid rules
  • Supports multiple models and types of data
  • Offers better features in comparison to other types of database system
  • Has the ability to understand several concurrent requests of rewriting as well as per second transactions through a technique that is called sharding
  • It could be used along with several other types of database like support, and this helps on reducing load and improving performance

Along with these advantages, Redis is also great when data ingestion is required to be done quickly. 

Redis’s Use cases

Unlike the conventional types of database that resolutes to disk, the data of Redis remains in the memory. Due to this feature, Redis gets the upper hand amongst the rest of the storage systems. Redis users claim that azure cache for Redis makes it extremely fast with low latency and high throughput. 

Thus, it will not be wrong to say that Redis functions among real-time applications and the message’s queuing systems. Along with that, several other cases of Redis use might include session management as well. Yes, speaking of session management at the application, Redis is convenient when managing user sessions. The application also stores information about user sessions, including user ids, login, recent actions, etc. 

Let’s catch up with caching

Before talking about the Redis cache, let’s catch up with the function of a cache. It serves as a non-permanent data store to get rapid retrieval without needing any extra round trips of the database. Remember, data stored in cache is mostly through a prior copy or query of data stored at some other place. This feature could be considered very important because more data could be fetched out of a cache. Along with that, the whole operation works more efficiently and faster. 

Associated Commands & Data Structures of Redis

Redis has its own versatility concerning cases of model data and its particular use. We have already told that Redis allows its user to map the keys with strings and several other present types of supported data. Other types and models of supported data consist of sets, hashes, lists, streams, sorted sets, and much more. 

In Azure Redis, the time required for converting a type of data into another as compared to other conventional databases is reduced. There is a section in Redis documentation where you can get detailed information about use cases and definitions for all data types. 

End Note

In this piece, you got familiar with the fact that Redis has a lot to offer to its users, from efficient reading and writing through optimization to its high-performing features. If we consider, azure Redis cache, it offers performance-oriented services for storing data in memory to get it retrieval rapidly. This also makes sure high throughput as well as low latency without the need to perform operations gradually.