Hacker News Reader

fh973on Many of the clothes we donate to charity end up dumped in landfill

Here's an interesting breakdown: https://sharecloth.com/blog/reports/apparel-overproduction

Seems like 30% of production doesn't find a buyer. Still staggering numbers for how many items the average consumer buys.

fh973on An Open Letter Against Apple's Privacy-Invasive Content Scanning Technology

Microsoft and Google have been doing that in their online services for ages, but not on your personal devices.

fh973on Ask HN: Who is hiring? (August 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | ONSITE | https://www.quobyte.com/

At Quobyte, we are working on the Data Center File System (DCFS), a highly scalable and fault-tolerant software storage system built around a parallel file system core. Customers use Quobyte DCFS for ML and HPC clusters in industry and academia, k8s and OpenStack infrastructures, streaming, web mail, post production, origin and CGI clusters, and as a scalable backend for SaaS products. There are Quobyte DCFS clusters which span thousands of machines and crunch 100s of GB/s!

Under the hood, DCFS is a full-stack storage system, written in Java and C++. The engineering work covers everything from kernel development over our own replicated database system design to distributed algorithms (Paxos!) and performance. In short: lots of real-world challenging and fun problems! We work as a highly efficient engineering team, and do mandatory code reviews, lots of unit and integration testing,

Engineering:

* Software Engineer / Distributed Database - Berlin, Germany

* Software Engineer / File System Metadata - Berlin, Germany

* Software Engineer / IO Path / C++ - Berlin, Germany

* Product Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

For detailed job descriptions please and application process, please visit https://www.quobyte.com/company/eng-careers.

fh973on Without Enough Water to Go Around, Farmers in California Are Exhausting Aquifers

And the alfalfa is exported to Saudi Arabia, which is effectively water export. https://www.theguardian.com/us-news/2019/mar/25/california-w...

fh973on SARS-CoV-2 Gamma variant infected 16 fully Pfizer vaccinated Guiana gold miners

No, just around 36%:

https://en.m.wikipedia.org/wiki/List_of_countries_by_obesity...

fh973on I Will Never Use a Microsoft Account to Log Into My Own PC

References? Is there some sort of official statement?

Windows 10 was also not subject to this requirement, yet you're harassed when you try to keep your local login.

fh973on IBM unveils first quantum computer in Germany

Indeed, but it didn't age well in one aspect: "If I were in charge of science funding, the entire world budget for this nonsense would be below that we allocate for the development of Bussard ramjets, which are also not known to be impossible, and are a lot more cool looking". IBM made quite some progress on the industrial design front.

fh973on Ask HN: Who is hiring? (June 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | ONSITE | https://www.quobyte.com/

At Quobyte, we are working on the Data Center File System (DCFS), a highly scalable and fault-tolerant software storage system built around a parallel file system core. Customers use Quobyte DCFS for ML and HPC clusters in industry and academia, k8s and OpenStack infrastructures, streaming, web mail, post production, origin and CGI clusters, and as a scalable backend for SaaS products. There are Quobyte DCFS clusters which span thousands of machines and crunch 100s of GB/s!

Under the hood, DCFS is a full-stack storage system, written in Java and C++. The engineering work covers everything from kernel development over our own replicated database system design to distributed algorithms (Paxos!) and performance. In short: lots of real-world challenging and fun problems! We work as a highly efficient engineering team, and do mandatory code reviews, lots of unit and integration testing,

Engineering:

* Software Engineer / Distributed Database - Berlin, Germany

* Software Engineer / File System Metadata - Berlin, Germany

* Software Engineer / IO Path / C++ - Berlin, Germany

* Product Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

For detailed job descriptions please and application process, please visit https://www.quobyte.com/company/eng-careers.

fh973on NVMe over Fabrics Explained

You can connect many NVMEs to a single CPU, but the PCI bandwidth becomes a bottleneck much earlier of course. Just as with SATA. Think of the SATA HBA as an adapter that bridges between PCI and SATA. For NVMe the counterpart is a PCI switch, with PCI on both sides.

fh973on Ask HN: Who is hiring? (May 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | ONSITE | https://www.quobyte.com/

At Quobyte, we are working on the Data Center File System (DCFS), a highly scalable and fault-tolerant software storage system built around a parallel file system core. Customers use DCFS for ML and HPC clusters in industry and academia, k8s and OpenStack infrastructures, streaming, web mail, post production, origin and CGI clusters, and as a scalable backend for SaaS products. There are Quobyte DCFS clusters which span thousands of machines and do 100s of GB/s!

Under the hood, DCFS is a full-stack storage system, written in Java and C++. The engineering work covers everything from kernel development over our own replicated database system design to distributed algorithms (Paxos!) and performance. In short: lots of real-world challenging and fun problems! We work as a highly efficient engineering team, and do mandatory code reviews, lots of unit and integration testing,

Engineering:

* Software Engineer / Distributed Database - Berlin, Germany

* Software Engineer / C++ - Berlin, Germany

* Senior Software Engineer / Distributed Database - Berlin, Germany

* Product Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

For detailed job descriptions please visit https://www.quobyte.com/company/careers.

I am looking forward to receiving your CV via work@quobyte.com.

fh973on The Origins of the Wirecard Scandal

You can generalize that: German government doesn't mind exploiting people's health and the environment, and prioritizes industry interests. Two current examples: the ongoing ignorance about ground water pollution [1], and the Diesel air pollution affair, which is far from being over [2].

[1] https://www.dw.com/en/eu-sues-germany-over-water-tainted-by-... [2] https://www.rhein-zeitung.de/deutschland-und-welt/wirtschaft... (no English source)

fh973on How many Devices can you Connect to the I2C Bus?

How is the allocation of addresses done typically? Are they always hardcoded? Is the same chip then available with different addresses (different SKU)?

fh973on Apache Mesos to be moved to Attic

The framework-based scheduler architecture looked like an interesting concept at first sight. But its advantage (write your custom scheduling policy, along with gaining scalability) evidently wasn't that important to make up for the effort of actually having to write your own framework to run anything. (In this regard its a bit like object storage as a file system replacement narrative, which promises scalability, if you adapt your application).

This seems to be true both for the Omega experiments at Google (which I assume still uses Borg), and for Mesos. In the end, Mesos always lacked even a minimal application deployment story. Marathon unfortunateley never got beyond being a shiny UI with a primitive application model and a hacky API.

I think if Mesos(-sphere) had recognized that gap in time, and came up with a decent framework for application deployments, instead of telling everyone to write their own framework (in C++, against a hacky code base), Kubernetes might not have had a chance, or at least we would have two alternatives to chose from. Too bad.

fh973on Ask HN: Who is hiring? (April 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | Onsite | https://www.quobyte.com/

Quobyte is developing a software storage system for file, block and object, built around a parallel file system core. Customers use our Data Center File System for HPC clusters in industry and academia, k8s and OpenStack infrastructures, post production, origin and CGI clusters, and as a scalable backend for SaaS products.

The Quobyte Data Center File System is a full-stack storage system, which means that engineering work covers everything from kernel development over database systems design to distributed algorithms and performance. In short: lots of real-world challenging and fun problems!

Engineering:

* Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

* Senior Software Engineer - Berlin, Germany

For detailed job descriptions please visit https://www.quobyte.com/company/careers.

We are looking forward to receiving your CV via work@quobyte.com.

fh973on Java 16

Here at Quobyte, we're developing a distributed file system that is partially written in Java. The JVM is rock-stable, fast, and developers are very productive in Java.

fh973on First release of mmv for over 30 years

See https://github.com/rrthomas/mmv/blob/master/COPYING : the author changed it to GPL.

fh973on 30k U.S. organizations newly hacked via holes in Microsoft Exchange Server

Germany. Since Corona, Teams is suddenly everywhere.

fh973on Voith Schneider Propeller

Nice, but that's not a brushless motor. Brushed motors are still being used in RC boats because they can get to lower RPMs.

fh973on Ask HN: Who is hiring? (March 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | Onsite | https://www.quobyte.com/

Quobyte is developing a software storage system for file, block and object, built around a parallel file system core. Customers use our Data Center File System for HPC clusters in industry and academia, k8s and OpenStack infrastructures, post production, origin and CGI clusters, and as a scalable backend for SaaS products.

The Quobyte Data Center File System is a full-stack storage system, which means that engineering work covers everything from kernel development over database design to distributed systems engineering and performance. In short: lots of real-world challenging and fun problems!

Engineering:

* Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

* Senior Software Engineer - Berlin, Germany

For detailed job descriptions please visit https://www.quobyte.com/careers.

We are looking forward to receiving your CV via work@quobyte.com.

fh973on OpenZFS – dRAID, Finally

Quobyte DCFS does erasure coding of files across machines (no local RAID needed).

fh973on AMD Is Currently Hiring More Linux Engineers

Which distro would you recommend for ARM servers?

fh973on Ask HN: Who is hiring? (February 2021)

QUOBYTE Engineering | Berlin, Germany | Full-time | Onsite | https://www.quobyte.com/

Quobyte is developing a software storage system for file, block and object, built around a parallel file system core. Customers use our Data Center File System for HPC clusters in industry and academia, k8s and OpenStack infrastructures, post production, origin and CGI clusters, and as a scalable backend for SaaS products.

The Quobyte Data Center File System is a full-stack storage system, which means that engineering work covers everything from kernel development over database design to distributed systems engineering and performance. In short: lots of real-world challenging and fun problems!

Engineering:

* Support Engineer - Berlin, Germany and US

* QA / Test Engineer - Berlin, Germany

* Senior Software Engineer - Berlin, Germany

For detailed job descriptions please visit https://www.quobyte.com/careers.

We are looking forward to receiving your CV via work@quobyte.com.

fh973on That XOR Trick (2020)

Surprised this doesn't have my favorite XOR trick: implementing a double-linked list with one pointer!

Store predecessor XOR successor in each node.

I suspect this clicks already with everyone, and I don't need to explain forward and backward iteration.

fh973on Show HN: Mountain Peaks in WebGL

Where do you get the DEM from?

fh973on Scientists tracked down a mass killer of salmon

In the EU new substances seem to need registration at least. It's called REACH regulation:

https://echa.europa.eu/regulations/reach/understanding-reach

fh973on Writing a Memory Allocator (2019)

But objects are passed around between threads and another thread might want to free it?

fh973on AlphaFold2 at CASP14: “It feels like one’s child has left home.”

Is it a scientifc result if it isn't reproducible? Would the result have been accepted if it was submitted by an unknown?

fh973on The Moral Case for a Wealth Tax Has Never Been Clearer

It isn't orthogonal anymore when it comes to housing. Money seeks returns and uses private housing as an investment vehicle.

fh973on Expanding Fuchsia's open source model

This also how golang started, but doesn't mean it won't develop a life of its own.

fh973on HopsFS: 100x Times Faster Than AWS S3

> ... but has 100X the performance of S3 for file move/rename operations

Isn't rename in S3 effectively a copy-delete operation?