Hacker News Reader

Graphguyon Umbra: an ACID-compliant database built for in-memory analytics speed

Lots of people using it in production. Snowflake, IBM Cloud, Goldman, VMWare.

CouchDB is re-architecting onto it, https://youtu.be/SjXyVZZFkBg

Graphguyon NSA's Backdoor Key from Lotus Notes (2002)

CouchDB is still thriving. It's adopting FoundationDB in 4.0... https://www.youtube.com/watch?v=SjXyVZZFkBg good talk on that here at FoundationDB Summit

Graphguyon IBM casts doubt on Google's claims of quantum supremacy

Quantum supremacy is more about quantum computers being able to do something that classical computers could never do (1). I think that's the heart of the controversy. I'm quite sure Quantum has already proved faster for certain use cases already (2)

1. https://twitter.com/NatureNews/status/1186969282632134656?re... 2. https://arxiv.org/abs/1904.05803

Graphguyon Graph database reinvented: Dgraph gets $11.5M to pursue unique, opinionated path

Depends how much time you have...

Fifteen minutes: “How to Choose a Database” by Ben Anderson (https://www.ibm.com/cloud/blog/how-to-choose-a-database-on-i...)

Three hours: Jepsen analyses of distributed systems safety. Kyle tests software ranging across the database spectrum.

One week: Designing Data-Intensive Applications by Martin Kleppman.

Disclaimer: I work with Ben and think he takes a really nice tact on this subject, while it may be orthogonal to your immediate question regarding trade-offs.

Graphguyon PostgreSQL DBaaS vendor comparison and calculator

NP - I can submit a PR to your work tomorrow? Seems like a useful tool for surveying the growing PG-aaS space!

Graphguyon PostgreSQL DBaaS vendor comparison and calculator

IBM has a relatively new managed PG offering with mutually exclusive scaling of Disk and RAM. Neat feature to not have to rely on instance sizing, https://cloud.ibm.com/catalog/services/databases-for-postgre....

disclosure: I work @ IBM.

Graphguyon HCL buys Notes from IBM

+ IBM acquired Cloudant, which is fully CouchDB compatible, and is based off Couch.

Graphguyon AI could get 100 times more energy-efficient with IBM’s new artificial synapses

full disclosure, I work for IBM. But it does link to a fairly informative research paper published in Nature.

"The computational energy efficiency of 28,065 billion operations per second per watt and throughput per area of 3.6 trillion operations per second per square millimetre that we calculate for our implementation exceed those of today’s graphical processing units by two orders of magnitude."

Graphguyon Robinhood Opens Cryptocurrency Trading

the fees are tucked into their allocation strategy. they hold no less than 7% in cash for all strategies. They claim it smooths out returns but it's not desirable and can limit returns https://thefinancebuff.com/schwab-intelligent-portfolios-hol...

Graphguyon Amazon Neptune – Fast, reliable graph database built for the cloud

Is this JanusGraph under the covers? Guessing since Neptune is a nod to Janus.