Amazon really encourages valkey in the elasticache dashboard. There's a banner advertising lower prices and it's listed first in the dropdown when you go to create one. Default settings do have power.

Sure, but the impact of new customers and their decisions take a long time before they impact net statistics. All evidence I can find, regardless of domain or context, suggests Redis vs. valkey marketshare is something around a 99%/1% difference.

> All evidence I can find, regardless of domain or context, suggests Redis vs. valkey marketshare is something around a 99%/1% difference.

What evidence did you find?

Ask the LLM of your choice the following question: "Among the top cloud service providers, for product offerings that can be implemented by Redis or valkey, based on all available evidence, what is the relative market share and/or usage of Redis vs. valkey?"

LLMs are not a source.

but what if they confirm my priors?

sick burn bro

Why/how would you expect an LLM to know that info?

If you use the latest versions of Redis, you are benefiting from the continued efforts of the Valkey development community. [1]

This is Open Source working well.

Unfortunately, the reverse flow does not work.

[1] https://github.com/redis/redis/pull/13638

I wonder how that works legally with CLA. If the person who originally wrote the code is not the one who signs off the PR. I assume the lawyers have signed off on it.

Did they maintain the author's copyright notice as required by BSD-3?

Well, now that Redis is once again Open Source and even Free Software, that should change.

That kind of assertion really needs some backup or it's just noise. I'll be honest and say that I have no idea what the usage stats for Valkey are -- and it may be that it's a drop in the bucket compared to Redis. But I don't know. Can you back this up or is this just your gut feeling?

I've been using Valkey simply because after I updated to the latest Fedora version, it dropped redis and pointed me to Valkey instead. I assume as more distros do this and more people update their systems, the Valkey user base will grow. But perhaps with the AGPL redis that will no longer be the case.

Are there usage stats available? How do you know this?

My guess is they are making it up. AWS has no public information, but there are some high profile customers that have migrated https://aws.amazon.com/elasticache/customers/.

Without sources, it's a "statistically worthless" comment :)

My guess is most people are using Redis via cloud providers. Did any cloud providers switch away from Redis?

AWS supports Valkey for Elasticache, and they actually bill it 33% cheaper. We use it and it works well.

AWS Elasticache gave a nice discount to switch to valkey w/ 1 button click no downtime migration path

ValKey is cheaper in AWS than Reddis

Wasn’t the whole point (or one of the major ones) of Valkey so that AWS could use it?

Based on Internet-accessible services the number of Valkey servers is low (~120):

https://trends.shodan.io/search?query=valkey_version+port%3A...

Here's a chart of all Redis-compatible services (~55,000):

https://trends.shodan.io/search?query=port%3A6379+redis_vers...

And how representative are publicly accessible redis/valkey instances for redis/valkey usage in general? And can shodan even differentiate Redis from a Valkey instance setup in a backwards-compatible way without being able to authenticate?

In absolute numbers probably not highly representative but the relative numbers are meaningful to measure adoption. And no, it requires the user to disable authentication in order to get the service details to differentiate between Redis and Valkey. But again, you can compare unauthenticated Redis to unauthenticated Valkey to see how the percentages are changing over time.

Yet. It's a drop-in replacement, and both faster and cheaper.

Yeah, all the open source distributions and most open source projects switching to valkey must be "nobody".

I don't know about valkey but I got word Nvidia was switching away from Redis.

what do you mean? i work at a FAANG-adjacent company and our entire engineering org was told to switch to valkey, with an internal deadline from ops. My team supports a public facing service and we made the switch 2 months ago.

It was pretty easy, a small config change and some performance testing to make sure it worked well at scale.

Maybe nobody is talking about it online but some people have definitely switched.