Topic
partitioning
5 articles across 4 sub-topics
Sub-topic
2 articles
NoSQL Partitioning: How Cassandra, DynamoDB, and MongoDB Split Data
TLDR: Every NoSQL database hides a partitioning engine behind a deceptively simple API. Cassandra uses a consistent hashing ring where a Murmur3 hash of your partition key selects a node — virtual nod
SQL Partitioning: Range, Hash, List, and Composite Strategies Explained
TLDR: SQL partitioning divides one logical table into smaller physical child tables, all accessed through the parent table name. The query optimizer skips irrelevant child tables entirely — a process
Sub-topic
1 article
Partitioning in Spark: HashPartitioner, RangePartitioner, and Custom Strategies
TLDR: Spark's partition count and partitioning strategy are the two levers that determine whether a job scales linearly or crumbles under data growth. HashPartitioner distributes keys by hash modulo —
Sub-topic
1 article
CosmosDB Partition Internals: Logical vs Physical Partitions Explained
🔥 When Your Database Bill Triples Overnight A retail engineering team ships a flash-sale feature. Traffic spikes 10×. Their Azure CosmosDB bill triples within 24 hours. Queries that ran in 5ms now ta
Sub-topic
1 article
Partitioning Approaches in SQL and NoSQL: Horizontal, Vertical, Range, Hash, and List Partitioning
TLDR: Partitioning splits one logical table into smaller physical pieces. The database skips irrelevant pieces entirely — turning a 30-second full-table scan into a sub-second single-partition read. S