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Felipe Mendes

@felipemendes.dev.bsky.social

I code and explain computers to people. “Database Performance at Scale” Co-author Technical Director at ScyllaDB My opinions are my own

511 Followers  |  295 Following  |  94 Posts  |  Joined: 21.02.2024  |  2.2002

Latest posts by felipemendes.dev on Bluesky

@jaz.bsky.social try to read from mutation fragments if your release supports it. If its a clock skew, retries, you should observe both records along with their timestamps - from there you can determine the source of it.

docs.scylladb.com/manual/stabl...

08.04.2025 19:43 — 👍 0    🔁 0    💬 0    📌 0

Yeah -- and tell you what, my modest Switch HW gives me more fun than the super heating PS5. Very high expectations for Nintendo's nextgen

26.02.2025 20:42 — 👍 1    🔁 0    💬 0    📌 0

(…)

30.01.2025 01:06 — 👍 1    🔁 0    💬 0    📌 0

O curioso caso em que a @folha.com e o @g1portal.bsky.social entre outros resolveram deixar os apagões em SP em segundo plano. Os “quase 200 mil” sem luz são números da PRÓPRIA Enel…

O que mudou? A eleição acabou e o @guilhermeboulos.bsky.social perdeu 😉

21.12.2024 22:50 — 👍 3    🔁 0    💬 0    📌 0
Fernanda Torres and her mother, Fernanda Montenegro, are posing for a photo, sitting close together and looking straight into the camera. A headline reads: "A Surprise Blockbuster in Brazil Stokes Oscar Hopes and a Reckoning." Photo by María Magdalena Arréllaga for The New York Times.

Fernanda Torres and her mother, Fernanda Montenegro, are posing for a photo, sitting close together and looking straight into the camera. A headline reads: "A Surprise Blockbuster in Brazil Stokes Oscar Hopes and a Reckoning." Photo by María Magdalena Arréllaga for The New York Times.

Decades after her mother became the first Brazilian actress to be nominated for an Academy Award and lost, Fernanda Torres may have a chance to win for her role in “I’m Still Here.” nyti.ms/3DqTf6E

15.12.2024 21:52 — 👍 3582    🔁 669    💬 75    📌 120
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Bluesky in Windows Longhorn Hillel 2003.

02.12.2024 17:59 — 👍 3382    🔁 956    💬 91    📌 166

DM us and let's get to the gist of this - @avikivity.bsky.social @dorlaor.bsky.social :)

30.11.2024 12:47 — 👍 2    🔁 0    💬 0    📌 0

rfc group chat for easier thread recap

WDYM by dropping? Is it crashing or gossip flapping?

If a crash, replicas take sometime to find it out, plus in-flight reqs will timeout.

If flapping, it could be an overwhelmed node/shard. Check the foreground/background queues in the detailed dashboard.

30.11.2024 12:46 — 👍 4    🔁 0    💬 1    📌 0
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Exploring the full bluesky firehose, in three dimensions: firehose3d.theo.io

16.11.2024 21:56 — 👍 2833    🔁 719    💬 189    📌 283

do bskiers go to re:Invent? Hit me up at @scylladb.com booth #1958 at the Venetian

Also check out DAT204-S 👀

26.11.2024 01:28 — 👍 0    🔁 0    💬 0    📌 0

What's up @scylladb.com - you learn things fast

21.11.2024 14:11 — 👍 1    🔁 0    💬 0    📌 0
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GitHub - scylladb/scylladb: NoSQL data store using the seastar framework, compatible with Apache Cassandra NoSQL data store using the seastar framework, compatible with Apache Cassandra - scylladb/scylladb

@scylladb.bsky.social has joined the party!

When we needed a horizontally scalable data store for Bluesky's v2 AppView implementation, I spent a ton of time testing and evaluating every option and ScyllaDB was the clear winner. The people there have been very nice too!

github.com/scylladb/scy...

21.11.2024 01:36 — 👍 85    🔁 16    💬 4    📌 0
P99 CONF 2024 - Dominik Tornow, Founder & CEO at Resonate
YouTube video by ScyllaDB P99 CONF 2024 - Dominik Tornow, Founder & CEO at Resonate

Distributed Async Await, a new programming model for the cloud

My P99CONF presentation is online. Thank you to the ScyllaDB team for a great conference experience ♥️

youtu.be/uOHYhdJPYYk?...

31.10.2024 17:36 — 👍 12    🔁 4    💬 0    📌 0
P99 CONF 2024 | Feature Store Evolution Under Cost Constraints by David Malinge & Ivan Burmistrov
YouTube video by ScyllaDB P99 CONF 2024 | Feature Store Evolution Under Cost Constraints by David Malinge & Ivan Burmistrov

Video of our #p99conf talk about cloud cost in the context of ML Feature Store: youtu.be/X7u3Q3tOG5U?...
The cost topic is far broader than we managed to cover, tons of things have been left unspoken!

28.10.2024 15:19 — 👍 5    🔁 4    💬 0    📌 0

Nice! I will Watch that one ty

25.10.2024 19:50 — 👍 1    🔁 0    💬 0    📌 0

Hey there @blenon-raqnon.bsky.social !

Yes, currently the Operator doesn’t support resizing PVCs :-( the reason is because we highly recommend local SSDs for better performance

This doesn’t mean we won’t ever support resizing PVCs but you’ve hit a known limitation atm

Hope it addresses your qs

25.10.2024 03:29 — 👍 0    🔁 0    💬 1    📌 0

#P99CONF Starter pack!

23.10.2024 18:15 — 👍 3    🔁 0    💬 0    📌 0

Whats up?

23.10.2024 18:13 — 👍 0    🔁 0    💬 0    📌 0
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Anatel Consumidor 202409012451959 vfinal2.docx Prezado cidadão, Em resposta à solicitação apresentada no Sistema Anatel Consumidor sob o Protocolo nº 202409012451959, apresentamos abaixo as informações relacionadas à competência da Agência para r...

Pouco ainda é conhecimento público como funciona a homologação, exploração e concessão de serviços de Internet via satélite no Brasil.

Com a novela entre X e Starlink, e a ameaça de não cumprimento da ordem do STF, questionei à Anatel.

Que seja público:

docs.google.com/document/d/1...

11.10.2024 22:22 — 👍 0    🔁 0    💬 0    📌 0

Not sure if the author realized their ccTLD belongs to the Kingdom of Tonga. Do what I say…?

09.10.2024 01:45 — 👍 1    🔁 0    💬 1    📌 0
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Well I wouldn't be so confident. Thingy about Threads is that the integration with Instagram makes its numbers veeery misleading. They didn't really "got a bazillion new users", users were always there ...

www.instagram.com/snaq.co/p/DA...

We need an updated www.similarweb.com/blog/insight...

19.09.2024 14:29 — 👍 3    🔁 0    💬 2    📌 0
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Oh ok… Guess I came in late

17.09.2024 00:19 — 👍 0    🔁 0    💬 0    📌 0
x.com

Originally posted at my now gone TT x.com/cardeneti821... - copy'n'pasting here so I can reference it myself eventually lol

16.09.2024 14:19 — 👍 0    🔁 0    💬 0    📌 0
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cql3 - as_json() - Deserialize Alternator :attrs · fee-mendes/scylla@a60a524 This commit changes the behavior of SELECT JSON calls when run on top of ScyllaDB Alternator tables. By definition, DynamoDB Attributes not part of a PRIMARY KEY (Hash or Sort Key in Dynamo, nor G...

Keep in mind this is experimentation/learning work, and not planned for merging: github.com/fee-mendes/s...

So WDYT ? Would you like to see more posts like these, and what are your thoughts on enabling database-y protocol interop? :-)

16.09.2024 14:18 — 👍 0    🔁 0    💬 1    📌 0

Playing with OSS code is all about a learning journey and, community contribution. If you are curious on how this works, I just implemented a naive way to deserialize an Alternator serialized map via the Cassandra (CQL) binary protocol! 👇

16.09.2024 14:17 — 👍 0    🔁 0    💬 1    📌 0

This serialization happens due to a few reasons: 1. The CQL protocol doesn't allow one to store types differently than what you specified when you created the map. 2. The CQL protocol enforces a schema, while the DynamoDB API doesn't.

16.09.2024 14:16 — 👍 0    🔁 0    💬 1    📌 0
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Fork it, do your thingy, experiment... You get the idea! :-) ScyllaDB implements a #DynamoDB API (Alternator). An implementation details is that it serializes all non-key Attributes (or GSIs) under an ":attrs" column, which is basically a map<text, blob> in CQL.

16.09.2024 14:16 — 👍 0    🔁 0    💬 1    📌 0

I've been fiddling around to get (more) familiar with ScyllaDB codebase (in particular the original AS JSON CQL function originally at github.com/psarna/scyll...), and understand how things work. Here's what super cool about working with databases and - most importantly - open source. 🧵

16.09.2024 14:15 — 👍 0    🔁 0    💬 1    📌 0

Há muito Mongo, DynamoDB, BigTable, Cassandra, HBase, etc em uso por aí. O ScyllaDB está neste segmento, e é interessante quando o fator price/performance começa a sair fora da curva.

Dá para ir bem longe "só" com Postgres, mas existe um limite. Este é o momento em que busca-se por alternativas.

16.09.2024 14:05 — 👍 1    🔁 0    💬 0    📌 0
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Add a hard-coded redirect for lulaoficial.bsky.social by pfrazee · Pull Request #5303 · bluesky-social/social-app We have not yet introduced tooling for accounts to have multiple handles. While we wait for that tooling to land, lula is a somewhat notable account who recently changed their handle to a verified ...

ICYMI github.com/bluesky-soci...

13.09.2024 21:26 — 👍 0    🔁 0    💬 0    📌 0

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