arstechnica.com Saturn’s rings steal the show in new image from Webb telescope
Webb turned its gold-coated mirror toward Saturn this week.
Posts
14
Comments
35
Joined
2 yr. ago
400 miles doesn't get you halfway across a single state in the western US.
Well if you broaden the definition that much, then it sounds like iPhone batteries are already user replaceable since I can easily purchase the necessary tools from iFixIt.
If that's really the definition, it's an awful definition and exactly why we shouldn't regulate stuff like this. Torx are objectively better than Philips or flathead in every possible way.
Another vote for Synology here. I have 2 RT2600 and 1 RT1600 between myself and my parents houses. They have been completely bullet proof and the oldest one is going on 7 years old now.
Nuclear power is green energy.
Updating to 0.18.4
Lemmy 0.18.4 has been released. You can see the official release announcement here. This one's a small one so should go smoothly. As usual, we'll update at 04:00 UTC tonight.
Edit: Completed successfully as expected. Unfortunately we did have a significant downtime just before the update due to the serve running out of memory. This was partially an odd coincidence and partly my fault. I had noticed that we were getting very near being out of memory, but expected the server would hold out until we rebooted during the maintenance window tonight. Unfortunately that didn't happen. Lemmy does gradually eat memory over time and requires periodic restarts, but the frequency seems rather variable. I never had restart the server for the entire time we were running on 0.18.2, while 0.18.3 needed a restart after just a handful of days of operation. Most significantly, this incident revealed that some of my monitoring tool
I have have this problem as well and it seems to be getting steadily worse. I feel like it must be q bug, but haven't looked in to it much.
There is an official announcement here: https://lemmy.ml/post/2540874
Ah, that's interesting. Thanks for letting me know.
FYI, I don't always see local posts (although I'm trying to explicitly take a look at the local tab once per day). If you post stuff that you hope I'm going to see, please @mention me so that I don't accidentally ignore you!
Updating to 0.18.3 2023-07-31
Lemmy 0.18.3 has been officially released. You can read the official release notes here. The eagle-eyed among you may notice that we are upgrading from 0.18.1 to 0.18.3 and wonder what happened to 0.18.2, and I share you confusion. It never got an official GitHub release so I never upgraded to it.
I plan to update tonight at 2023-07-29 2023-07-30 2023-07-31 04:00 UTC. Expected downtime is slightly longer than usual due to database updates, but should still be less than 10 minutes. As always, downtime may extend to up to an hour if any thing goes wrong.
Edit: There was a glitch with the update and I had to restore from a backup, which took most of the planned hour. I did successfully test the update on a clone of the production VM beforehand so I'm hopeful that simply retrying the upgrade will succeed, but to keep things within my one hour maintenance window I'll hold off on trying again until the same time tomorrow.
Are you speaking from first hand experience? I don't have experience with commercial satellites, but I can say from direct experience that scientific satellites and other spacecraft absolutely run a (real-time) traditional OS these days (and even a decade ago). That said, we do take serious measures to secure our vehicles. I don't think I want to say any more than that given the nature of the discussion.
I think you're underestimating the number of requests that a server can handle. Even my tiny instance currently sees dozens of requests every second and is very lightly loaded. A single request per minute is an immeasurably small load.
This used to work. The latest block of shorts that they added in the subscriptions page that is not removable.
If I read the announcement correctly, that is implemented by a bot with mod privileges that parses comments and takes actions on users' behalf. I don't think it's practical to literally make every user a moderator.
Short downtime at 19:00 UTC today
We are slowly accumulating both image and database data and our current disk will likely be full within the next several days. Fortunately I can increase the size of the disk by another 30GB without incurring any additional cost, which should be enough to at least another month of data. Unfortunately Linode doesn't let me increase the size while the server is online so there will be a brief downtime while I shut down the server and reallocate the disk.
Edit: Completed with just over 1.5 minutes of downtime.
AFAIK, you can't load comments on posts manually. You only get comments that are pushed to your instance after someone has subscribed to the community containing the post.
Amazing color!
The theis here does not really appear to be correct. Comparing MAU here, lemmy.world's MAU is flatter than the entire Lemmy platform's, implying that other platforms are seeing users drop off at a faster rate.
There are a number of tools that monitor the fediverse. Here's one. The thesis does not appear to be correct though. As lemmy.world's monthly active users is stabalizing, Lemmy as a whole is declining.
It's a brewery in Southern California. No wait, it's a small rock.
(Serious answer, it's a unit of measurement equal to 14 pounds.)
Good to see some anecdotal evidence that people have found us here. From an admin perspective, there's not much of a way to get insight in to this. As you pointed out, the ~300 subscribers is a good indication that there are users from other instances subscribed here. There's no easy way to tell how many other instances have at least one subscriber, but for every instance that does have at least one subscriber, posts from this community could show up in the "All" feed of anyone on the instance, so that has some potential to expand the reach somewhat as well.
Same for me. Since I switched to Firebird/Firefox, no other browser has given me a reason to seriously consider switching.
Updating to 0.18.1 tonight
Lemmy 0.18.1 has been officially released. You can read the official release notes here.
I plan to update tonight at 2023-07-07 04:00 UTC. Expected downtime is just a couple of minutes, but may extend to up to an hour if any thing goes wrong.
Edit: After a slight delay unrelated to the server, the update was uneventful and looks like it was successful.
Updating to 0.18.0
Hi Everyone,
This is just a quick FYI that I will be upgrading the instance to the Lemmy 0.18.0 release today at 21:00 (9PM) Pacific time, AKA 2023-06-23 04:00 UTC. Expected downtime is just a few minutes, but may extend up to an hour if anything does not go to plan. You can read the full release announcement here.
Edit: As of 21:03, everything appears to have gone as planned and we are now running 0.18!
Brief downtime earlier today
I caught this fast enough that I wonder if anyone even noticed, but this is the first unplanned downtime for the instance I'll go ahead and report on it anyway.
The instance has been consistently running at approximately 75-80% memory usage since it started. This morning (in my local time zone) the server experienced a memory spike. This spike caused the kernel to start swapping excessively, which in turn spiked CPU usage to 100%.
Timeline of Events
- 2023-06-14 17:11 UTC: Memory hit 100%, caused excessive swapping and 100% CPU usage
- 2023-06-14 17:14 UTC: Issue was noticed thanks to monitoring tools
- 2023-06-14 17:15 UTC: Shut down node, initiated node resize to double RAM and CPU
- 2023-06-14 17:17 UTC: Server back up and running
Evaluation
I was already a little concerned about running the server so close to the edge of memory. This event proves that it's not tenable. With the new node we now have 4GB of RAM and 2 CPU cores compared to 2GB and 1 core before. We are curren
Say hello
We're getting a slow but steady stream of signups, but most of you are just lurking. Creating at least one post or comment helps boost our active user count, which in turn gets us higher on the join-lemmy.org website so that more people see our little corner of the Fediverse when deciding where to sign up. I don't expect to ever be one of the major servers of the Lemmiverse, but I do think the more people we have here the more fun it will be.
To that end, please leave a comment here introducing yourself to the server, especially if you have been lurking up till now. Or, just go out there and comment anywhere on Lemmy (it doesn't have to be on our instance) so that you are counted as active!
Artists wanted
We're slowly accumulating users here so I figure I will throw this out there. Right now pretty much all of the icons and banners on the instance are AI generated art courtesy of Midjourney. While that has its own appeal given my username, I would be more than happy to replace it with user-submitted improvements (even more AI generated stuff. I'm not all that great at getting what I want out of the AI anyway). In exchange I can offer you a shout out in the community/instance description or something in addition to the karmic benefit of contributing to the instance. :)
Occasional instance restarts and how to handle them
As you all know, Lemmy is a rapidly evolving platform. That goes for those of us administering instances as well as users. As we grow and learn, it is occasionally necessary to restart the Lemmy instance to tweak settings.
Generally speaking, I'm able to set these changes up first, then click the button to restart the server, so the instance is down for less than a minute at a time. I think this is short enough that it's not worth making a post and waiting for an announced time for every restart. When/if I encounter a situation where I need to make more significant changes they will definitely be announced.
I would like to hear whether anyone has noticed and/or is bothered by occasional unannounced downtimes. If there's anyone out there that wants me to announce them first, I'm happy to do so when possible. The only cost is that it slows down my ability to iterate towards the ideal server config.
NASA Prepares for Historic Asteroid Sample Delivery
www.nasa.gov NASA Prepares for Historic Asteroid Sample Delivery on Sept. 24
NASA's OSIRIS-REx spacecraft is cruising back to Earth with a sample it collected from the rocky surface of asteroid Bennu. When its sample capsule parachutes down into the Utah desert on Sept. 24, OSIRIS-REx will become the United States’ first-ever mission to return an asteroid sample to Earth.
A graphic showing the most powerful rocket launched over time
I'm not above posting reddit links to interesting OC
Hosting a Lemmy Instance
A rambling list of notes to myself about hosting a Lemmy instance like this one
Basic Setup
Docker guide: https://lemmy.villa-straylight.social/post/1849#
However, I like the docker-compose.yml in the official docs better as a starting point. The docs pages aren't automatically published when a PR is merged, so refer to the Github Repo for the latest version.
This docker-compose.yml is mostly intended for development work, so you will need to replace the following lines:
yaml
build:
context: ../
dockerfile: docker/Dockerfile
with
undefined
image: dessalines/lemmy:0.17.4
Likewise, update the lemmy-ui image to dessalines/lemmy-ui:0.17.4.
I use basically the nginx.conf added by Just-Insane to the docker install page here.
Reverse Proxy
Lemmy uses websockets (for now anyway, that's
What's your favorite Cyberpunk work
Be it book, film or any other medium, share your favorite works of the genre (and why it's your favorite!)