Tagged articles

JVM cache

2 articles · Page 1 of 1

Aug 27, 2026 · Operations

How a DNS Resolution Failure Prompted a Full Network Layer Investigation

An intermittent DNS resolution failure caused third‑party API timeouts, leading to a step‑by‑step investigation that revealed an unstable public DNS server, and resulted in four practical solutions including switching DNS servers, adjusting JVM cache settings, adding hosts entries, and implementing retry logic.

DNSJVM cachehosts file

0 likes · 6 min read

How a DNS Resolution Failure Prompted a Full Network Layer Investigation

JD Tech

Nov 30, 2018 · Backend Development

Cache Classification and Practical Cases in High‑Traffic Systems

This article explains various cache types—including client, browser, CDN, NGINX, application, and unified Redis caches—and presents two real‑world case studies on handling hotspot keys and designing a three‑tier category‑center cache, highlighting performance gains, consistency challenges, and best‑practice solutions for high‑traffic backend systems.

BackendJVM cacheNginx

0 likes · 8 min read

Cache Classification and Practical Cases in High‑Traffic Systems