What is KGS? Why 2 table?
[System Design Problems - Designing a URL Shortening service like TinyURL]
(12)
I highly recommend watching this video for further info
[System Design Problems - Designing Dropbox]
(1)
Its not very clear how concurrency is handled?
[System Design Problems - Design Ticketmaster (*New*)]
(1)
How do we maintain correct ordering between different users?
[System Design Problems - Designing Facebook Messenger]
(1)
Why should we use request count instead of url count to estimate memory?
[System Design Problems - Designing a URL Shortening service like TinyURL]
(2)
Need better explanation and example walk through
[Pattern: Sliding Window - Longest Substring with Same Letters after Replacement (hard)]
(1)
Distributed File storage vs Object storage
[System Design Problems - Designing Youtube or Netflix]
(2)
Longest Substring with Same Letters after Replacement (hard)
[Pattern: Sliding Window - Longest Substring with Same Letters after Replacement (hard)]
(6)
Wide-column database further explanation
[System Design Problems - Designing Facebook Messenger]
(1)
The "if" statement might cause some bugs
[Pattern: Sliding Window - Longest Substring with Same Letters after Replacement (hard)]
(3)
Why is `check_for_fine` method included in every class, it is added in `Rack` class also
[Object Oriented Design Case Studies - Design a Library Management System]
(1)
Purging or DB cleanup Alternative
[System Design Problems - Designing a URL Shortening service like TinyURL]
(3)
Simple Explanation for program line : count += right - left;
[Pattern: Two Pointers - Triplets with Smaller Sum (medium)]
(3)
Missing class in the design : Please do answer... its a paid service
[Object Oriented Design Case Studies - Design a Restaurant Management system]
(2)
Why can't we just generate random key?
[System Design Problems - Designing a URL Shortening service like TinyURL]
(4)
Why LRU cache to store hot URLs?
[System Design Problems - Designing a URL Shortening service like TinyURL]
(3)
This is regarding system requirement for URL shortening service if the same large URL is given to the system by the same user , should it generate different Unique urls?
[System Design Problems - Designing a URL Shortening service like TinyURL]
(4)
Checking the cache size
[System Design Problems - Designing a URL Shortening service like TinyURL]
(4)
Why are we inserting -num to the maxHeap?
[Pattern: Two Heaps - Find the Median of a Number Stream (medium)]
(3)
About the race condition on many drivers accepting a single customer request
[System Design Problems - Designing Uber backend]
(1)
Why use if if statement in the for loop instead of using while loop in the for loop?
[Pattern: Sliding Window - Longest Substring with Same Letters after Replacement (hard)]
(7)
Why have been so much logic encapsulated within Member class
[Object Oriented Design Case Studies - Design a Library Management System]
(1)
Why cannot server-sent-events be used in place of Long Polling or WebSockets?
[System Design Problems - Designing Facebook Messenger]
(1)
What are the strategies to avoid key duplication and concurrency issues
[System Design Problems - Designing a URL Shortening service like TinyURL]
(1)
Can we store top suggestions with each node?
[System Design Problems - Designing Typeahead Suggestion]
(7)
Why is the Time Complexity O(N) for smallest sub array?
[Pattern: Sliding Window - Smallest Subarray with a given sum (easy)]
(7)
Choosing between SQL and NoSQL databases is not explained which one to choose
[System Design Problems - Designing Twitter]
(3)
Can somebody explain the calculation of Time Complexity in better words?
[Pattern: Fast & Slow pointers - Happy Number (medium)]
(5)
Choosing Cassandra over others. Why? And some general doubts -Designing Instagram
[System Design Problems - Designing Instagram]
(3)