Welcome to mini-redis-cpp Discussions!

[baadaldev]

👋 Welcome!

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To get started, comment below with an introduction of yourself and tell us about what you do with this community.

[synovara13]

What is Redis and why is it used?

[baadaldev]

Redis (Remote Dictionary Server) is an in-memory database that stores data in the form of key-value pairs. It is mainly used for caching, session management, and fast data retrieval because data is stored in RAM.

[synovara13]

What is the difference between Redis and a traditional relational database (MySQL/PostgreSQL)?

[baadaldev]

Redis
MySQL/PostgreSQL
Stores data in memory (RAM)
Stores data on disk
Key-value based
Table-based
Very fast
Comparatively slower
Used for caching
Used for permanent data storage

[synovara13]

Why is Redis considered faster than many databases?

[baadaldev]

Redis stores data in RAM instead of reading from a hard disk. Since RAM access is much faster than disk access, Redis can process requests very quickly.

[synovara13]

What data structure did you use in your Mini Redis project and why?

[baadaldev]

I used a Hash Table (unordered_map) to store key-value pairs. It provides fast insertion, searching, and deletion operations, making it suitable for implementing Redis-like functionality.

[synovara13]

How does the SET operation work in your project?

[synovara13]

How does the GET operation retrieve data from the storage?

[synovara13]

What is the time complexity of searching, inserting, and deleting data in your implementation?

[baadaldev]

My Mini Redis project supports only basic key-value operations. It does not support advanced Redis features such as persistence, replication, expiration time (TTL), or distributed storage.
Future improvements:
Data persistence
TTL (Time To Live)
Authentication system
Replication
More Redis commands

[synovara13]

What are the limitations of your Mini Redis project and what features would you add in the future?

[baadaldev]

Operation
Complexity
Insert (SET)
O(1) Average
Search (GET)
O(1) Average
Delete (DEL)
O(1) Average
Because hash tables allow direct access to data through keys.