Illustration of a B‑tree with highlighted copy‑on‑write nodes.

Implementing Copy-on-Write B-Trees: Architecture and Patterns for Efficient Database Snapshots

A deep dive into copy‑on‑write B‑tree design, showing how major systems achieve efficient snapshots and offering actionable patterns for engineers.

May 21, 2026 · 8 min · 1604 words · martinuke0
RocksDB compaction diagram on a server rack

Optimizing LSM-Tree Compaction in RocksDB: A Deep Dive into Write Amplification and Performance Tuning

A practical guide to reducing RocksDB write amplification through compaction tuning, with concrete configuration patterns and real‑world performance data.

May 19, 2026 · 5 min · 989 words · martinuke0
A server rack with glowing read/write arrows symbolizing data flow.

When Continuous Read Access Starves Your Background Writers

Explore how unchecked read loads starve background writers, the technical reasons behind the bottleneck, and practical mitigation techniques.

May 19, 2026 · 9 min · 1749 words · martinuke0
Diagram of a database snapshot with overlapping read transactions.

Why Snapshots Prevent Database Locking During Concurrent Reads

An in‑depth look at snapshot mechanisms, how they avoid locks, and practical examples for PostgreSQL, MySQL, and SQL Server.

May 19, 2026 · 7 min · 1282 words · martinuke0
A stylized diagram of a database query plan with mismatched arrows.

Why Query Planners Fail at Cardinality Estimation

A deep dive into the reasons query planners stumble on cardinality estimation, from outdated statistics to optimizer assumptions, and how to mitigate the impact.

May 18, 2026 · 6 min · 1263 words · martinuke0
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