Table of Contents
Redis: Definition
Standing for Remote Dictionary Server, Redis Cache is a data store that is open-source, speedy and has in-memory key-value to be utilised as a cache, database, broker, message as well as queue.
As a project it was incepted during the time when the original developer of redis on shared hosting, Salvatore Sanfilippo, wanted to improvise the scalability of the Italian start-up that he owned, and came up with this. Now providing sub-millisecond response times, that enable millions and millions of requests each second for a number of real-time applications, Redis is preferred all around the globe. Some of the applications that are aided by Redis usage are:
- Gaming
- Financial Services
- Ad-Tech
- IoT
- Healthcare
It is also is a in-demand choice for:
- Caching
- Gaming
- Leader boards
- Session management
- Geospatial
- Real-time analytics
- Chat or messaging, media streaming, and pub or sub apps
- Ride-hailing
Redis: The Mechanism Through Which It Works
The azure redis data of every kind stays in-memory. It is different from other databases which store data on either SSDs or disks.
It minimises the requirement of accessing disks as well as in-memory data stores like the Redis in order to be able to avoid any sort of delays that are seek time in nature and which could access the data within microseconds.
Redis has a number of features and much system cache, making it much simpler to make the internet scale apps which are real-time, namely:
- High availability
- Versatile data structures
- Lua scripting
- Geospatial
- On-disk persistence
- Transactions
- Cluster support
Redis and Memcached: A Comparative Study
Redis and MemCachedby definition are more or less the same. They are both open-source data stores that are in-memory in nature.
What is Memcached and What is Redis
A memory cache service which is high-performance distributed. It is designed intrinsically for simplicity.
Redis offers a set of features which are rich in nature and which make it quite effective for a wide array of usage cases.
Both work with databases which are either key-value or relational are used in order to augment performances, like:
- Postgres
- MySQL
- Oracle
- Aurora
- DynamoDB
- SQL Server
- And more.
New Redis 5.0: New Innovations
The market is now having a high demand of the new GA version of open-source Redis, Redis 5, and the latest Redis 5.0.3.
Initial released way back in 2009, the open-source azure redis cache has grown way more beyond the borders of just a caching technology to becoming a data store, which is extremely easy to use, in-memory and fast in nature which offers multifaceted data structures as well as responses in sub-millisecond.
Reaching a much talked about milestone with the launch of 5.0, that incorporates a huge array of latest improvements and advancements, redis windows, is much in demand these days. The launch of Streams is the bigger news here, which is completely a novel data structure in Redis since the inception of HyperLogLog. Many more new commands for the usage of Sorted Sets as well as advanced capabilities specially developed for Module APIs are present.
The Advantages of Redis
Server’s main memory is where the all the Redis data resides, which is in contrast to databases that includes names like:
- MongoDB
- Cassandra
- PostgreSQL
- And many more
These have the feature of storing most of the data on SSDs or on the disk.
The traditional disk is based on databases in which many of its operations need a roundtrip to disk. On the contrary, thein-memory data stores like Redis, with very low redis pricing, never suffer the penalty of the same kind.
They have the capability to thus, support an order of magnitude with many more operations as well as quicker response times. As a result, it provides lightening fast performance coupled with performance with average write and read operations which take much less time than even a millisecond and it supports for millions of operations each second.
Data Structures Which are Flexible
Different from the key-value data stores which are simplistic, which provide a very limited data structures, Redis comprises of a huge array of data structures that are made only to meet your personalized application requirements.
