Redis: Weekly Recap - Hot-Path Costs and Timing Fixes

25 pull request items and 8 commits centered on cutting scale-dependent work in pub-sub, tracking, and streams, plus monotonic timing and wake-up fixes. Merged work improves ZSCAN, blocking timeouts, and OpenSSL 4 and LoongArch64 support.

Duration: PT4M2S

Episode overview

This episode is a short developer briefing from Redis.

It explains recent repository work in plain language.

  • Show: Redis
  • Published: 2026-10-05T09:38:26Z
  • Audio duration: PT4M2S

Transcript excerpt

This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.

Hello, this is the Redis weekly recap for September 28th through October 5th, 2026.

25 pull request activity items, 8 additional commits this week.

The central pattern is reducing work that grows with subscribers, consumers, or entries, while tightening timing and wake-up behavior in blocking and module paths.

First, scaling hot paths. Proposal 15896 would index pub-sub patterns by literal prefix, so publish and keyspace notifications skip patterns that cannot match instead of testing every pattern on every message. Proposal 15895 applies the same idea to broadcast client tracking, making invalidation cost independent of…

Second, blocking, timers, and data correctness. Merged change 15743, building on short commit 0d17e7b, moves blocking command timeouts, blocked module clients, and module timers to monotonic deadlines, eliminating a race where a blocked timeout could fire before a same-duration timer. If you maintain modules that…

Third, platform, cluster, and tooling. Merged change 15227 replaces a deprecated certificate name lookup to restore secure builds against OpenSSL 4, now default in Mac homebrew, while decoding names to U T F 8 and removing truncation. Merged change 15769…

Nearby episodes from Redis

  1. PubSub Speed and Hotkeys Accuracy
  2. BCAST Tracking Cost Fix
  3. Stream Producer Leak Fix
  4. X Autoclaim Slowdown Fix
  5. Edge-Case Correctness, Faster ZSCAN, OpenSSL 4 Fix
  6. Clock Races, Restart Safety, and CLI Fixes
  7. Clean Reconnects and Louder Timeouts
  8. Weekly Recap - Test Harness Overhaul and Reliability Hardening