Momento launches out of stealth with a serverless cache | Hacker News Reader

Momento launches out of stealth with a serverless cache

techcrunch.com

8 pointsjedberg14 comments

Congrats! Although I look back fondly on the many years I spent on debugging cache incidents (https://danluu.com/cache-incidents/) I don’t think the rest of the world should go through the same bumpy road.

It’s truly interesting to see a new generation of applications not only doing away with using bare metal hardware, but continuing to be built on increasingly higher level abstractions.

Of course, the key is for those abstractions to be dependable in production as well as easy to use. I think Momento actually takes runtime predictability quite seriously.

Thank you Yao. We have been studying the lessons learned around the industry from caching outages as well as techniques employed by the giants to run great caching fleets. Our mission is to make those benefits available to everyone without requiring any effort. We have certainly learned a ton from you and your team at Twitter.

Daniela Miao and I founded Momento. We are passionate about our team and serverless. We are open to answer any questions you may have about our service.

https://www.gomomento.com/blog/we-built-a-serverless-cache-y...

What’s your billing model?

We tried really hard to come up with a simple model that is pay as you go and has only one dimension: 15 cents/GB transferred. We also have a free tier: first 50GB are free, which is sufficient for many production applications. The free tier has the same availability and security features as the paid tier. You can build a production app on it!

You can check out our public pricing page on dev docs as well!

https://docs.momentohq.com/docs/pricing

I'm excited to see this come out of stealth! I had a chance to try it out in the beta and I'm super impressed. It "just works", which is really hard for a cache.

This is definitely a product I wished existed when I worked at reddit -- although maintaining the cache wasn't super hard, it was a huge pain when one of the instances would fail or we had to dump the cache. Momento has done a lot of work to alleviate the problems when something goes wrong, which is when you want your cache to keep just working. Also writing your cache code to avoid hot spots is a hard problem that they just solve for you too. Super impressed with their tech.

Thanks Jeremy. Caching is hard and error prone indeed.

Congratulations on the launch! I've been impressed by Momento's cache infrastructure during its private beta — the team's execution around developer experience makes integration painless so you can hit the ground running. I've seen first-hand how hard operationalizing instance-based caches think the serverless approach is a great fit here.

This marketing is perplexing. What's "serverless" about Memento's remote caching systems that serve requests?

Does Memento run collocated with your systems, rather than its own servers? Absolutely not. So it isn't serverless...

You can get a production ready cache capable of doing millions of TPS with a single API call. You do not have to worry about number of instances, instance types, replication, TLS, and the multitude of configurations required. The pay-per-use model gets you all this without provisioning unnecessary infrastructure (and paying for idle capacity).

Is this the standard "there are servers so it's not serverless" argument? I think at this point everyone knows that serverless usually means someone else manages the servers for you. And that's what this is. Someone managing your cache fleet for you.

I spent so much time at previous jobs sizing and maintaining caching clusters. I think this product is going to be a game changer for a lot of engineering teams!

I worked with Khawaja and Daniela at AWS. They always were strong advocates of developer experience and it really shows with Momento. Congrats on the launch!

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