A non-techie just asked me this, "when your computer overheats, why does it freeze?"

Smart India Hackathon: Horrible experience
Background:- Our task was to do load forecasting for a given area. Hourly energy consumption data for past 5 years was given to us.

One government official asks the following questions:-
1. Why are you using deep learning for the project? Why are you not doing data analysis?
2. Which neural network "algorithm" you are using? He wanted to ask which model we are using, but he didn't have a single clue about Neural Networks.

3. Why are you using libraries? Why not your own code?

Here comes the biggest one,

4. Why haven't you developed your own "algorithm" (again, he meant model)? All you have done is used sone library. Where is "novelty" in your project?

I just want to say that if you don't know anything about ML/AI, then don't comment anything about it. And worst thing was, he was not ready to accept the fact that for capturing temporal dependencies where underlying probability distribution ia unknown, deep learning performs much better than traditional data analysis techniques.
After hearing his first question, second one was not a surprise for us. We were expecting something like that. For a few moments, we were speechless. Then one of us started by showing neural network architecture. But after some time, he rudely repeated the same question, "where is the algorithm". We told him every fucking thing used in the project, ranging from RMSprop optimizer to Backpropagation through time algorithm to mean squared loss error function.

Then very calmly, he asked third question, why are you using libraries? That moron wanted us to write a whole fucking optimized library. We were speechless at this question. Finally, one of us told him the "obvious" answer. We were completely demotivated. But it didnt end here. The real question was waiting. At the end, after listening to all of us, he dropped the final bomb, WHY HAVE YOU USED A NEURAL NETWORK "ALGORITHM" WHICH HAS ALREADY BEEN IMPLEMENTED? WHY DIDN'T YOU MAKE YOU OWN "ALGORITHM"? We again stated the obvious answer that it takes atleast an year or two of continuous hardwork to develop a state of art algorithm, that too when gou build it on top of some existing "algorithm". After listening to this, he left. His final response was "Try to make a new "algorithm"".

Needless to say, we were completely demotivated after this evaluation. We all had worked too hard for this. And we had ability to explain each and every part of the project intuitively and mathematically, but he was not even ready to listen.
Now, all of us are sitting aimlessly, waiting for Hackathon to end.😢😢😢😢😢

The craziest shit in my life just happened.

I left my laptop(basically my whole life) and my handbag at my dinner table and went to the the toilet for 4 minutes. I live in a ground-house in a rural area, and the front door wasn't locked.

After I exited the bathroom I noticed eevrything was gone. My laptop, my bags, my wallet. Everything. I panicked.

I quickly informed the local security authority while canceling my credit card and resetting all of my credentials, they with the help of the police they tracked the theives in 10 minutes in a neighboring town, with what it seems all of my stuff intact, which I am supposed to get tommorow.

This is both insane and a miracle. I am speechless and thankful to G-d. This is divine providence. I can't explain it in any other explanation

Watch over your stuff like your life depends on them. Don't ever leave your laptop even for a few minutes.

Today is a sad day.
A sad day indeed.
I used to live with my parents for pretty much my whole life until the beginning of this year, when I decided to move and starter living with a friend, in his apartment.
By far, one of the things that I've missed most from my parents' house was the dogs. Boy, I love those four pretty little creatures.
Being a fulltime developer in an area that I honestly don't like that much, I really appreciate my after-work hours. Specially because of the time I could spend with the dogs.
So, the first months away were quite hard. Even though I was living with a friend, I couldn't help but feel alone and really depressed at times.
But then, my friend and my girlfriend decided that it was a nice idea to give me something to grow with again. And Jolyne, my beautiful, smart and messy little dog came to the apartment.
Boy oh boy, my bright days were back.
Getting home and seeing those four small legs and a shaking tail running on my direction was everything I could ask for. I was happy again.

Fast-forward to today.
I finally finished the code for a project I was working on. Everything was working fine. A good day indeed, good sir. Have one on me. - then my friend called me, which is weird considering we almost only talk through Telegram during the day.
All he had to say, with a sad voice and painful tone, was "man... I don't know how to tell you this... But Jolyne is dead".

And that was it. Every good feeling I had was now dead. And a part of me as well.
I stood there, speechless. I mean, I just couldn't believe what I've just heard. She was happy by the morning. We were playing before I left for work. Everything was fine.
Then, four hours later, it wasn't. She was gone.
I came home to a friend that didn't have any more tears to shed. And no dog came running to me like usual.
My fluffy little friend was laying on her bed, like she was sleeping normally. Like nothing had happened at all. She was just sleeping and have not noticed me... At least that was what I wanted to believe.
Three hours had passed then... And I just can't fathom the fact that my dog won't be here anymore. That I won't be able to play with her again like I do every night. That I won't listen to her running around with her toys. That I won't be able to hug her anymore.

I still don't know what to do. I mean, she will be buried. I've already arranged everything.
But I don't know what to do about myself. I don't know how to deal with this pain I'm feeling.
But I will try to move on... I just don't know how.

I'm deeply sorry for bringing you this story. For just writing it down here, like you guys need to share my pain...
But I needed to write this down somewhere. And this place is pretty much the only one where I feel comfortable and welcome enough to do this.
Thank you for your time, my friends.
Thank you.

So, I applied for a job lately and the first interview via Zoom went pretty good. Then I got an invitation for a second interview at the company.

I got there, was guided into a conference room and the two head of departments along with an HR woman joined. After a bit if chit-chat HR rep said I should tell them in the next couple of days if I'm still interested. HR left, the other two gave me a tour of the complex, lasting about an hour.

then we got back to the conference room, waited for HR rep and when she arrived she told me something along the lines of "Yeah, we got an impression of you now and you don't need to contact us anymore if your are interested...."

me to myself: "wait what? that sucks...."

HR: "We are impressed enough of you that we want to hire you immediately. Here is the contract!"

me (completely speechless): "oh... OH... THANKS, but... OHHHH" (having a stupid perplexed grin on my face)

I mean... I got the job and pay is good, but PLEASE don't trick me like that!!! I nearly got a heart attack!!!

This wasn't an interview, but a massive rejection which I've never forgotten...

I was working beneath a director from hell. South African, very intimidating. If I was not able to dictate my work, he would give me an expression like I had just kicked his dog.

I think at the time, I had threatened the development manager when I had challenged the way we were running database queries and linked processes.

The director had pulled me into his office one day and said to me, literally, "not everyone can do what they want to do, if they are not good at it". Like seriously, what the fuck... I was doing a lot more than others even more senior to me, and I had just come on board learning the language on the fly (4th Dimension, don't ask...).

I digress... My heart just completely sank and I was left speechless. Two jobs later and I could give him the big finger.

These days in a development management position for a massive Australian company, so I know we all go through a lot of shit, keeps you humble.

Have you ever had the moment when you were left speechless because a software system was so fucked up and you just sat there and didn't know how to grasp it? I've seen some pretty bad code, products and services but yesterday I got to the next level.

A little background: I live in Europe and we have GDPR so we are required by law to protect our customer data. We need quite a bit to fulfill our services and it is stored in our ERP system which is developed by another company.

My job is to develop services that interact with that system and they provided me with a REST service to achieve that. Since I know how sensitive that data is, I took extra good care of how I processed the data, stored secrets and so on.

Yesterday, when I was developing a new feature, my first WTF moment happened: I was able to see the passwords of every user - in CLEAR TEXT!!

I sat there and was just shocked: We trust you with our most valuable data and you can't even hash our fuckn passwords?

But that was not the end: After I grabbed a coffee and digested what I just saw, I continued to think: OK, I'm logged in with my user and I have pretty massive rights to the system. Since I now knew all the passwords of my colleagues, I could just try it with a different account and see if that works out too.

I found a nice user "test" (guess the password), logged on to the service and tried the same query again. With the same result. You can guess how mad I was - I immediately changed my password to a pretty hard.

And it didn't even end there because obviously user "test" also had full write access to the system and was probably very happy when I made him admin before deleting him on his own credentials.

It never happened to me - I just sat there and didn't know if I should laugh or cry, I even had a small existential crisis because why the fuck do I put any effort in it when the people who are supposed to put a lot of effort in it don't give a shit?

It took them half a day to fix the security issues but now I have 0 trust in the company and the people working for it.
So why - if it only takes you half a day to do the job you are supposed (and requires by law) to do - would you just not do it? Because I was already mildly annoyed of your 2+ months delay at the initial setup (and had to break my own promises to my boss)?

By sharing this story, I want to encourage everyone to have a little thought on the consequences that bad software can have on your company, your customers and your fellow devs who have to use your services.
I'm not a security guy but I guess every developer should have a basic understanding of security, especially in a GDPR area.

Product Management thought of automating an entire legacy product so they funded undisclosed amount to program management who in turn hired >20 contract devs managed by architects and dev managers with zero functional or technical knowledge of product and who in turn went ahead automating the product in selenium, end result of which was an useless automation framework with lot of browser specific dependencies and whuch could run only on one setup environment and migrating test cases to another environment and running is almost impossible and tyrannical to configure. The automation test cases are highly disorganized with all generic setup, DB configurations and business case test data mixed up in same config files and which need to be rewriten every time ported from one environment to other.To add misery to my woes as a dev working in that product I was told to utilize that framework and enhance the quality of my code by writing inline automation Cases for the same. I am left speechless thoughtless and emotionless after that decision.

This story just left me speechless in any way and i want to share it. tl;dr at the end.
Im studying computer science in germany and in the first of the small classes i noticed... no, i was disturbed by a guy who would just say that the thing we're learning atm were so easy and the teacher shouldn't even bother to explain it to the class. I don't understand why you would spoile a class that hard... I'm here to learn and listen to the teacher, not to you little asshole. (We were doing basic stuff like binary system etc. but still, let us learn)
So he became unpopular pretty fast.
Fast forward, a few weeks of studying later there was a coding competition where you had to solve different algorithmic problems in a team as fast as possible.
I came there, without a team because my friends aren't interested but I enjoy such tournaments. This guy and me were the only ones without a team and we had to work together.
After him being a total dick for hours i had to watch him code a simple for-loop, that iterates through a sorted array. Nothing special, at this point anyone could do that task in our class so it shouldn't be a problem for him.

He made a simple for-loop and it worked fine, but we figured we had to iterate through the array the other way around.
'Alright', I think. 'Just let the index decr..' 'Pssshhh', he interrupted me and said he knows exactly how to do this.
I was quite impressed when he started to type in 'public int backsort..' in a new line. He tried to resort the array backwards with a quicksort that he then struggled to implement. (Of course we had to implement a quick runtime and we needed that quicksort badly)
I was kind of annoyed but impressed at the same time. I mumbled 'Java has an internal sorting algorithm already' just to amuse myself.
He then used that implementation.
After a few minutes of my pleasure and multiple tests without hitting the requested runtime, i tried to explain to him why we wouldn't need to sort that array backwards and he just couldn't believe it.
I hope that he stays more humble after that..
Also we became last place but thats ok :)

tl;dr: Guy spoiles whole class, brags with his untouchable knowledge (when we do things like binary system). In a competition has to iterate through a sorted array backwards - tries to implement a sorting algorithm to sort it backwards first. I tell him, we could use a already implemented java method. Then tell him we could simply iterate through decreasing the index. Mind-Blown

It was simple Tuesday morning, got to work, turned on laptop. And hell began. First call, my co worker asked me to come. Got shouted, why I bought this peace of shit printer. Why it's printing slow. Asked to bring back old one because it's faster. But before I switched printers. I got strange and funny question, "why paper comes out hotter from this printer and not from older one ", I became speechless, and left her without answer. Ok I changed printer. Went to take tea break(hate coffee). Got asked by same women to bring original power cord that was with printer, because that one connected somehow slowed printing speed. The fuck? Too hot paper, now power cord? Why? How? That was stupidest things I ever heard.
P.S Slow printing problem was with her computer, bad drivers, something wrong with computer or OS. Anyway I need to change her computer pretty soon anyway.

I hate the elasticsearch backup api.

From beginning to end it's an painful experience.

I try to explain it, but I don't think I will be able to cover it all.

The core concept is:
- repository (storage for snapshots)
- snapshots (actual backup)

The first design flaw is that every backup in an repository is incremental. ES creates an incremental filesystem tree.

Some reasons why this is a bad idea:
- deletion of (older) backups is slow, as newer backups need to be checked for integrity
- you simply have to trust ES that it does the right thing (given the bugs it has... It seems like a very bad idea TM)
- you have no possibility of verification of snapshots

Workaround... Create many repositories as each new repository forces an full backup.........

The second thing: ES scales. Many nodes / es instances form a cluster.

Usually backup APIs incorporate these in their design. ES does not.

If an index spans 12 nodes and u use an network storage, yes: a maximum of 12 nodes will open an eg NFS connection and start backuping.

It might sound not so bad with 12 nodes and one index...

But it get's pretty bad with 100s of indexes and several dozen nodes...

And there is no real limiting in ES. You can plug a few holes, but all in all, when you don't plan carefully your backups, you'll get a pretty f*cked up network congestion.

So traffic shaping must be manually added. Yay...

The last thing is the API itself.

It's a... very fragile thing.

Especially in older ES releases, the documentation is like handing you a flex instead of toilet paper for a wipe.

Documentation != API != Reality.

Especially the fault handling left me more than once speechless...

Eg:
/_snapshot/storage/backup
gives you a state PARTIAL
/_snapshot/storage/backup/_status
gives you a state SUCCESS

Why? The first one is blocking and refers to the backup status itself. The second one shouldn't be blocking and refers to the backup operation.

And yes. The backup operation state is SUCCESS, while the backup state might be PARTIAL (hence no full backup was made, there were errors).

So we have now an additional API that we query that then wraps the API of elasticsearch. With all these shiny scary workarounds like polling, since some APIs are blocking which might lead to a gateway timeout...

Gateway timeout? Yes. Since some operations can run a LONG (multiple hours) time and you don't want to have a ton of open connections hogging resources... You let the loadbalancer kill it. Most operations simply run in ES in the background, while the connection was killed.

So much joy and fun, isn't it?

Now add the latest SMR scandal and a few faulty (as in SMR instead of CMD) hdds in a hundred terabyte ZFS pool and you'll get my frustration level.

PS: The cluster has several dozen terabyte and a lot od nodes. If you have good advice, you're welcome - but please think carefully about this fact.

I might have accidentially vaporized people sending me links with solutions that don't work on large scale TM.