You are tasked with designing a MongoDB database schema for a blogging platform where users can create
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Question:
You are tasked with designing a MongoDB database schema for a blogging platform where users can create posts, follow other users, like and comment on posts, and view a personalized feed of posts from users they follow. The system will have the following requirements:
- Users can register accounts and log in to the platform.
- Each user has a profile containing their username, email, profile picture, and a list of users they follow.
- Users can create posts containing text, images, or links.
- Users can like and comment on posts created by other users.
- The platform should provide a personalized feed for each user, displaying posts from users they follow in chronological order.
a) Database Design:
- Identify the entities and relationships relevant to the blogging platform domain. Describe how you would represent these entities using MongoDB collections, documents, and relationships.
- Design the MongoDB schema including collections for users, posts, likes, comments, and any other necessary entities. Specify document structures, embedded documents, and any indexes required for efficient querying.
b) Functional Requirements:
- Write MongoDB queries to perform the following tasks:
- Retrieve all posts created by a specific user.
- Display the details of a post including its likes and comments.
- Calculate the total number of likes for a specific post.
- Retrieve the personalized feed of posts for a given user, sorted by creation date.
c) Data Modeling and Performance Optimization:
- Discuss the considerations you would take into account when modeling data for a MongoDB database, including embedding vs. referencing, denormalization, and data consistency.
- Explain the indexes you would create to optimize the performance of the MongoDB queries in the blogging platform system.
d) Scalability and High Availability:
- Describe the strategies you would employ to ensure the scalability and high availability of the MongoDB database system to handle increasing loads and growing data volumes over time.
- Discuss the use of MongoDB sharding or replication techniques to distribute data across multiple servers or clusters and achieve fault tolerance.
Related Book For
The Analysis And Design Of Linear Circuits
ISBN: 9781119913023
10th Edition
Authors: Roland E. Thomas, Albert J. Rosa, Gregory J. Toussaint
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