fideasu

Trying to understand what's happening in my setup. In my "homelab", I've a bunch of small devices and a few "heavier" ones (incl. one PC, two big external HDD cases, a 2D and a 3D printer,...) . They're all connected to two daisy-chained power strips. I've been taught it's a bad practice, since it can easily lead to having too many power hungry devices on one wire - so I measured the total power usage there, and it never goes over 600W. I have 16A breakers (with 230V it's 3680W), so I assumed I'm way under the limit.

One weird thing happens though - when everything is off, simply turning on the power strip trips the breaker. Even though all the devices are obviously off (those with physical

Just had an old man get out of his car and start clapping as I ran past :( I just can't believe he dared to acknowledge my existence and invade my private space like that, can't even say if an asshole or a creep (probably both). What other bad experiences have people had from others while running that stick in your mind?

Maybe someone here will have an idea what am I doing wrong?

OS is Fedora (Linux). I'm using LTO-6 drive from Tandberg (second hand) with a HP P822 Smart Array controller (second hand as well). I use LTFS and transfer the data using the following command:

tar --create --verbose --file=- "$@" \
	| gpg -z 0 --no-symkey-cache --cipher-algo AES256 --symmetric --output - \
	| mbuffer -m 10G -R 160M -P 50 \
	> "$OUTPUT"

$@ are input directories, $OUTPUT is a file on the LTFS.

What I'm trying to achieve: first, it should wait until the buffer is at least 50% full (it's 5 GiB with my settings). Then the transfer should start. As soon as the buffer gets empty, the transfer stops and waits u

I've got a btrfs fs backed by 10 HDDs. Total size 64TB. Data are RAID5, metadata and system RAID1C4. I'm currently trying to shrink one of the devices.

I managed to shrink it to 1552G, but when I try to go just one GB down, it fails:

$ btrfs fi resize 8:1551G mnt
ERROR: unable to resize 'mnt': Input/output error

In dmesg, I see the following:

[248072.576560] BTRFS info (device dm-2): resizing devid 8
[248073.130467] BTRFS info (device dm-2): relocating block group 77078494969856 flags data|raid5
[248089.092752] BTRFS warning (device dm-2): csum failed root -9 ino 260 off 3874578432 csum 0x77d0c7a2 expected csum 0x59db7926 mirror 1
[248089.092759] BTRFS error (devi

I've got a DC motor. Sadly, no data sheet, but it's maximal ratings are specified as 12V and 1.5A. It's measured resistance is around 2 Ohm, so I can't just attach 12V source directly to it (it'd result in 6A). For now, I added 6 Ohm in series and it seems to work. I also attached a PWM source and am able to control the rotation speed.

The problem: 6 Ohm resistor (actually a combination of ceramic resistors resulting in 6 Ohm) heat up really quickly and really strong. I'm wondering if I could just get rid of them completely, since I anyway want to PWM the motor.

So, would it be fine, if I fed the motor directly with pulses of 6A as long as the average stays below 1.5A (25% duty cycle)? O

Disclaimer: It's not meant to be a troll post or it's not my intention to dismiss anybody's problems. Anyway, please remove the post in case it's not appropriate for the sub.

I see this sub is full of people complaining how hard it is to land a job, especially the first one, in programming. And I'm sometimes wondering - do we live in the same world?

Because most of them mention spending a lot of time in education, many on additional qualifications, some claim doing private side projects, and still being rejected in hundreds of interviews.

On the other hand, what I see in the real life in the company(ies) I work(ed) for, the vast majority of the candidates show up with inadequately

I was eating a lot of sweets for a big part of my life (basically since moving out from my parent's house ~10 years ago). And if I had some in my range, I was basically always eating them all at once, regardless how full I felt. They often made me sick, not only digestion problems, but a weird feeling of being sluggish and sleepy up to 24h after such overeating "session".

At the moment I'm on a diet for almost 4 months (lost ~16kg so far). Currently, I often go a week or more without sweets. You'd think reduced sugar intake would cure these cravings? Not the case, at least at the moment. I do shopping once a week now (covid) and usually buy a box of bars or a chocolate or sth. And always,

I'm a very beginner in FreeCAD. I created three sketches showing my project from three perspectives and now trying to extrude it to create a 3D model out of them.

So I created a body and when I click "Pad", I get the following error: "Cannot use selected object. Selected object must belong to the active body"

Not sure what that means. I don't even understand what exactly is meant here. What is a "selected object"? My sketch? Should the sketches be within "Part"? If yes, how to move them there (trying to move them gives me error messages about dependency loop)

My project looks like that:

[https://www.dropbox.com/s/0y5jazmwzm19q9o/freecad-extrude-error.png?dl=0](https://www.dropbox.com/s/0

From my little research, I found out you can find plenty of consumer grade USB power banks (Li-Po and Li-Ion) with capacity about 20Ah in price range 30-50€. At the same time, battery packs of similar capacity and technology go between 100-200€. Thus, I have the following questions:

1. Is that a correct observation, or it's my search skills that suck?
2. Why is it so? I'd expect power banks to be more expensive due to additional circutry, robuster case, additional manufacturing, packaging... etc.

Examples:

Battery packs:

[https://www.distrelec.de/de/stromversorgung/batterien-akkus-und-ladegeraete/akkus/akkupacks-lithium/c/cat-DNAV_PL_100505?sort=Price%3Aasc](https://www.distrelec.de/de

Excuse my nooby question, but no internet search I tried gave me an answer.

Basically - if I create two tables this way:

CREATE TABLE table_a(
    id INTEGER PRIMARY KEY,
    b_id INTEGER NOT NULL,
    FOREIGN KEY (b_id) REFERENCES table_b(id)
);
CREATE TABLE table_b(
    id INTEGER PRIMARY KEY,
    a_id INTEGER NOT NULL,
    FOREIGN KEY (a_id) REFERENCES table_a(id)
);

Then, is it possible to insert anything to these tables? If yes, how would such a query look like?

Context: I'm creating a small piece of software and want to ensure that two objects can't exist without each other. I'm wondering if it's possible to enforce such a constraint on the D

I read the sub but am not very active here, but now it feels I'd need a bit support.

For a few years now, I was relatively free of depression. I often had bad mood, but it didn't feel as overwhelming as it used to back then. Last year I discovered running and with time it really became a passion for me. A few months ago I added diet and strength exercises, and now I'm lighter and stronger than ever.

But now... It's second wave of covid and I'm at home for almost 3 months now. Rarely even leaving it. My family and friends all live far away (different country, so it's not just distance, but also covid rules that separate us; and my social anxiety didn't yet let me make friends where I live).

What I need: a USB Bluetooth adapter with a high power antenna, i.e. something that would give me a stronger signal than a typical small bt adapter (long story, but I have something that looks like EM-interference issue, so want to try with a stronger adapter than what's built in my notebook). Of course, has to work with Linux.

I really don't know where to look for something like that. All I find are countless WiFi+BT USB adapters of various companies that honestly all look like coming from the same assembly line. All of them have similarly poorly written to nonexistent specs, but many explicitly mention that they don't support Linux.

I'm really confused. Is it really so hard to find somet

tldr: I'm a software developer looking for a career path utilizing both my 10 years of experience in IT and my love to foreign languages and linguistics. Any ideas?

(this is quite a long post, feel free to skip it and simply answer the tldr question above)

About me: I'm a software developer with about 10 years of experience. I feel I'm "pretty good" at it, and my bosses and colleagues generally agree. I'm fine financially and never had problems with finding a new job. I worked with various technologies, from mobile apps through web to the embed software. I was also engaged in activities like architecture designing, UI/UX preparation, and now I'm even a part time Scrum Master.