Redis: HOTKEYS Gets Smarter in Cluster Mode
Today we're diving into a thoughtful improvement to Redis's HOTKEYS command that makes it much more cluster-friendly. Mincho Paskalev delivered a solid PR that adds better error handling for invalid slots and restructures the command's behavior to work seamlessly across cluster deployments. This is exactly the kind of developer experience polish that makes Redis such a joy to work with.
Duration: PT3M33S
Episode overview
This episode is a short developer briefing from Redis.
It explains recent repository work in plain language.
- Show: Redis
- Published: 2026-02-04T11:11:56Z
- Audio duration: PT3M33S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Hey there, Redis enthusiasts! Welcome back to another episode of the Redis podcast. I'm your host, and I'm genuinely excited to dive into today's changes because we've got some really thoughtful improvements that show how much the Redis team cares about developer experience.
So let's talk about what landed yesterday - we had one merged pull request, but it's a really meaty one that I think deserves our attention. This comes from Mincho Paskalev, and it's all about making the HOTKEYS command play much nicer in cluster environments.
Now, if you've worked with Redis clusters before, you know that sometimes commands can feel a bit awkward when they're trying to span multiple nodes. The HOTKEYS command was one of those cases where the behavior wasn't quite as smooth as it could be. Mincho tackled this head-on with PR 14761.
Here's the story: when you're running Redis in cluster mode and you want to track hot keys, you really want to be able to query individual nodes without having to worry about cluster management complexity. The old implementation had some rough edges - you could pass invalid slot ranges to the HOTKEYS START command,…
The fix is actually pretty elegant. First, Mincho…
But…
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