Latest
25
Jan
#15. Consensus & Raft - Availability vs Strong Consistency
The One Thing to Remember
Consensus is about getting multiple nodes to agree on a single value, even when some
5 min read
25
Jan
#14. Replication Patterns - Consistency vs Latency
The One Thing to Remember
Replication is about trade-offs between consistency, availability, and latency. Synchronous replication = strong consistency but higher
6 min read
25
Jan
#13. Sharding Strategies - Query Flexibility vs Scale
The One Thing to Remember
Sharding is about choosing the right partition key. A good shard key distributes data evenly
6 min read
25
Jan
#12. CAP Theorem Demystified - Consistency vs Availability
The One Thing to Remember
During a network partition, choose Consistency or Availability. You cannot have both. This isn'
7 min read
25
Jan
#11. SQL vs NoSQL Decision Guide - Flexibility vs Scale
The One Thing to Remember
SQL = relationships and consistency. NoSQL = flexibility and scale. Choose SQL when you need complex queries
5 min read
25
Jan
#10. Isolation Levels & Anomalies - Safety vs Concurrency
The One Thing to Remember
Isolation levels are a knob between correctness and performance. Higher isolation = fewer anomalies but more
5 min read
25
Jan
#9. ACID Transactions Explained - Consistency vs Performance
The One Thing to Remember
ACID ensures your database doesn't lie to you. Atomicity (all or nothing), Consistency
7 min read
25
Jan
#8. Database Indexes Deep Dive - Read Speed vs Write Speed
The One Thing to Remember
An index is a sorted copy of your data for fast lookups. Like a book&
8 min read
25
Jan
#7. Load Balancing (L4 vs L7) - Speed vs Features
The One Thing to Remember
L4 = blind forwarding, L7 = smart routing. Layer 4 sees only IP addresses and ports (fast
8 min read
25
Jan
#6. HTTP Evolution (1.1→2→3) - Simplicity vs Performance
The One Thing to Remember
HTTP evolved to solve head-of-line blocking. HTTP/1.1 blocks on one slow response. HTTP/
8 min read