-
Strongly consistent S3
Speaking of S3 becoming strongly consistent, Swift was strongly consistent for objects in practice from the very beginning. All the "in practice" assumes a reasonably healthy cluster. It's very easy, really. When your client puts an object into a cluster and receives a 201, it means that a quorum of back-end nodes stored that object. Therefore, for ( Read more... ) -
git cp orig copy
Problem: I want to copy a file in git and preserve its history.
Solution: Holy guacamole!:
git checkout -b dup
git mv orig copy
git commit --author="Greg " -m "cp orig copy"
git checkout HEAD~ orig
git commit --author="Greg " -m "restore orig"
git checkout -
git merge --no-ff dup
-
Pleroma and restricted timelines
Problem: you run a Pleroma instance, and you want to restrict the composite timelines to logged-in users only, but without going to the full "public: false". This is a common ask, and the option restrict_unauthenticated is documented, but the syntax is far from obvious!
Solution:
config :pleroma, :restrict_unauthenticated,
timelines: %{local: ( Read more... ) -
RHEL 9 on libvirt and KVM
Problem: you create and VM like you always did, but RHEL 9 bombs with:
Fatal glibc error: CPU does not support x86-64-v2
Solution: as Dan Berrange explains in bug #2060839, a traditional default CPU model qemu64 is no longer sufficient. Unfortunately, there's no "qemu64-v2". Instead, you must select one of the real CPUs.
Broadwell-v4
-
Suvorov vs Zubrin
Bro, u mad?
Zubrin lies like he breathes, not bothering even calculate in Excel, not to mention take integrals!
But they continue to believe him - because it's Zubrin!
When they discussed his "engine on salt of Uranium" [NSWR - zaitcev] I wrote that the engine will not work in principle, because a reactor can only work in case of effective ( Read more... ) -
Python subprocess and stderr
Suppose you want to create a pipeline with the subprocess and you want to capture the stderr. A colleague of mine upstream wrote this:
p1 = subprocess.Popen(cmd1 ( Read more... ) -
MinIO in the news
The company we mentioned previously is in the news. Seen at Blocks And Files:
If MinIO want to discourage software developers from including its code in their products it is managing this very well.
-
Cura on Fedora is dead, use Slic3r
Was enjoying my Prusa i3S for a few months, but had to use my Lulzbot Mini today, and it was something else ( Read more... ) -
PyPI is not trustworthy
I was dealing with a codebase S at work that uses a certain Python package N (I'll name it in the end, because its identity is so odious that it will distract from the topic at hand). Anyhow, S failed tests because N didn't work on my Fedora 35. That happened because S installed N with pip(1), which pulls from PyPI, and the archive at PyPI ( Read more... ) -
Adventures in tech support
OVH was pestering me about migrating my VPS from its previous range to the new (and more expensive) one. I finally agreed to that. Migrated the VM to the new host, it launches with no networking. Not entirely unexpected, but it gets better.
The root cause is the DHCP server at OVH returning a lease with netmask /32. In that situation, it's not ( Read more... )