Spending whole day debugging one error. Fixed it in 10 minutes on the next day. Anyone else ?

My first job: The Mystery of The Powered-Down Server

I paid my way through college by working every-other-semester in the Cooperative-Education Program my school provided. My first job was with a small company (now defunct) which made some of the very first optical-storage robotic storage systems. I honestly forgot what I was "officially" hired for at first, but I quickly moved up into the kernel device-driver team and was quite happy there.

It was primarily a Solaris shop, with a smattering of IBM AIX RS/6000. It was one of these ill-fated RS/6000 machines which (by no fault of its own) plays a major role in this story.

One day, I came to work to find my team-leader in quite a tizzy -- cursing and ranting about our VAR selling us bad equipment; about how IBM just doesn't make good hardware like they did in the good old days; about how back when _he_ was in charge of buying equipment this wouldn't happen, and on and on and on.

Our primary AIX dev server was powered off when he arrived. He booted it up, checked logs and was running self-diagnostics, but absolutely nothing so far indicated why the machine had shut down. We blew a couple of hours trying to figure out what happened, to no avail. Eventually, with other deadlines looming, we just chalked it up be something we'll look into more later.

Several days went by, with the usual day-to-day comings and goings; no surprises.

Then, next week, it happened again.

My team-leader was LIVID. The same server was hard-down again when he came in; no explanation. He opened a ticket with IBM and put in a call to our VAR rep, demanding answers -- how could they sell us bad equipment -- why isn't there any indication of what's failing -- someone must come out here and fix this NOW, and on and on and on.

(As a quick aside, in case it's not clearly coming through between-the-lines, our team leader was always a little bit "over to top" for me. He was the kind of person who "got things done," and as long as you stayed on his good side, you could just watch the fireworks most days - but it became pretty exhausting sometimes).

Back our story -
An IBM CE comes out and does a full on-site hardware diagnostic -- tears the whole server down, runs through everything one part a time. Absolutely. Nothing. Wrong.

I recall, at some point of all this, making the comment "It's almost like someone just pulls the plug on it -- like the power just, poof, goes away."

My team-leader demands the CE replace the power supply, even though it appeared to be operating normally. He does, at our cost, of course.

Another weeks goes by and all is forgotten in the swamp of work we have to do.

Until one day, the next week... Yes, you guessed it... It happens again. The server is down. Heads are exploding (will at least one head we all know by now). With all the screaming going on, the entire office staff should have comped some Advil.

My team-leader demands the facilities team do a full diagnostic on the UPS system and assure we aren't getting drop-outs on the power system. They do the diagnostic. They also review the logs for the power/load distribution to the entire lab and office spaces. Nothing is amiss.

This would also be a good time draw the picture of where this server is -- this particular server is not in the actual server room, it's out in the office area. That's on purpose, since it is connected to a demo robotics cabinet we use for testing and POC work. And customer demos. This will date me, but these were the days when robotic storage was new and VERY exciting to watch...

So, this is basically a couple of big boxes out on the office floor, with power cables running into a special power-drop near the middle of the room. That information might seem superfluous now, but will come into play shortly in our story.

So, we still have no answer to what's causing the server problems, but we all have work to do, so we keep plugging away, hoping for the best.

The team leader is insisting the VAR swap in a new server.

One night, we (the device-driver team) are working late, burning the midnight oil, right there in the office, and we bear witness to something I will never forget.

The cleaning staff came in.

Anxious for a brief distraction from our marathon of debugging, we stopped to watch them set up and start cleaning the office for a bit.

Then, friends, I Am Not Making This Up(tm)... I watched one of the cleaning staff walk right over to that beautiful RS/6000 dev server, dwarfed in shadow beside that huge robotic disc enclosure... and yank the server power cable right out of the dedicated power drop. And plug in their vacuum cleaner. And vacuum the floor.

We each looked at one-another, slowly, in bewilderment... and then went home, after a brief discussion on the way out the door.

You see, our team-leader wasn't with us that night; so before we left, we all agreed to come in late the next day. Very late indeed.

When I started programming Batch Files I decided to go big and and make an Batch Program with a fully functional UI system. Just when I had finished the first menu I kept getting a "goto was unexpected at this time" or something like that. I did everything I could to see about debugging until I finally cleared my calender and spent the next week debugging. A week of debugging goes by and I see someone coding in color rather then black and white at my school. I walk up to him and ask. "What language is that?" To which he replies "Batch". I asked him how he got Notepad to be in color and he simply pointed to the top left of the screen and it said Notepad++.
I get home later that day and look up "Notepad++" and download the first thing I see. I install the .msi file and I see a language bar at the top of the screen. Set it to batch, and drag my .bat file into the program to see six of my dividers are red bars. I look this up and see there's another spacing option "echo.", I replace my current spacers with this and the whole thing starts working. Fml, that's a week I'm never gonna get back

Thanks to Devrant I've learned about rubber duck debugging. Never heard of it before! It reminds me of a story many moons ago when I worked for a certain multinational company as a business analyst. The company brought in some consultants who basically stole the work my team was already doing on a big project (a horrendous series of spreadsheets linked to data coming from the core systems) and sold it back to the company for an insane amount of money as their idea.

When they launched the new product, the team I was in was asked to test and review it. It took my colleague ten seconds to bring the whole thing to its knees and trigger a corrupt data export back into the core systems. Bearing in mind this external company somehow managed to charge tens of thousands of pounds. So what did my colleague do? Hack the system? Some kind of complicated sabotage? Nope. He typed "FISH" into one of the spreadsheet cells! Thus the FISH test was born.

That day I learned several things: it's easy to break things with a fish; the importance of validating your input; and the satisfaction of showing up the smug bastards who stole your ideas and work.

You know, the whole AWS outage being caused by a typo while debugging got me thinking... whoever did that is most probably a developer who had a REALLY bad day. Could that person be on DevRant? Because the story of what the rest of that day and week was like for him or her has the chance to be the most epic rant on here ever. Poor guy/gal.

So ok here it is, as asked in the comments.

Setting: customer (huge electronics chain) wants a huge migration from custom software to SAP erp, hybris commere for b2b and ... azure cloud
Timeframe: ~10 months….

My colleague and me had the glorious task to make the evaluation result of the B2B approval process (like you can only buy up till € 1000, then someone has to approve) available in the cart view, not just the end of the checkout. Well I though, easy, we have the results, just put them in the cart … hmm :-\
The whole thing is that the the storefront - called accelerator (although it should rather be called decelerator) is a 10-year old (looking) buggy interface, that promises to the customers, that it solves all their problems and just needs some minor customization. Fact is, it’s an abomination, which makes us spend 2 months in every project to „ripp it apart“ and fix/repair/rebuild major functionality (which changes every 6 months because of „updates“.

After a week of reading the scarce (aka non-existing) docs and decompiling and debugging hybris code, we found out (besides dozends of bugs) that this is not going to be easy. The domain model is fucked up - both CartModel and OrderModel extend AbstractOrderModel. Though we only need functionality that is in the AbstractOrderModel, the hybris guys decided (for an unknown reason) to use OrderModel in every single fucking method (about 30 nested calls ….). So what shall we do, we don’t have an order yet, only a cart. Fuck lets fake an order, push it through use the results and dismiss the order … good idea!? BAD IDEA (don’t ask …). So after a week or two we changed our strategy: create duplicate interface for nearly all (spring) services with changed method signatures that override the hybris beans and allow to use CartModels (which is possible, because within the super methods, they actually „cast" it to AbstractOrderModel *facepalm*).
After about 2 months (2 people full time) we have a working „prototype“. It works with the default-sample-accelerator data. Unfortunately the customer wanted to have it’s own dateset in the system (what a shock). Well you guess it … everything collapsed. The way the customer wanted to "have it working“ was just incompatible with the way hybris wants it (yeah yeah SAP, hybris is sooo customizable …). Well we basically had to rewrite everything again.
Just in case your wondering … the requirements were clear in the beginning (stick to the standard! [configuration/functinonality]). Well, then the customer found out that this is shit … and well …

So some months later, next big thing. I was appointed technical sublead (is that a word)/sub pm for the topics‚delivery service‘ (cart, delivery time calculation, u name it) and customerregistration - a reward for my great work with the b2b approval process???

Customer's office: 20+ people, mostly SAP related, a few c# guys, and drumrole .... the main (external) overall superhero ‚im the greates and ur shit‘ architect.
Aberage age 45+, me - the ‚hybris guy’ (he really just called me that all the time), age 32.
He powerpoints his „ tables" and other weird out of this world stuff on the wall, talks and talks. Everyone is in awe (or fear?). Everything he says is just bullshit and I see it in the eyes of the others. Finally the hybris guy interrups him, as he explains the overall architecture (which is just wrong) and points out how it should be (according to my docs which very more up to date. From now on he didn't just "not like" me anymore. (good first day)
I remember the looks of the other guys - they were releaved that someone pointed that out - saved the weeks of useless work ...

Instead of talking the customer's tongue he just spoke gibberish SAP … arg (common in SAP land as I had to learn the hard way).
Outcome of about (useless) 5 meetings later: we are going to blow out data from informatica to sap to azure to datahub to hybris ... hmpf needless to say its fucking super slow.
But who cares, I‘ll get my own rest endpoint that‘ll do all I need.

First try: error 500, 2. try: 20 seconds later, error message in html, content type json, a few days later the c# guy manages to deliver a kinda working still slow service, only the results are wrong, customer blames the hybris team, hmm we r just using their fucking results ...
The sap guys (customer service) just don't seem to be able to activate/configure the OOTB odata service, so I was told)
Several email rounds, meetings later, about 2 months, still no working hybris integration (all my emails with detailed checklists for every participent and deadlines were unanswered/ignored or answered with unrelated stuff). Customer pissed at us (god knows why, I tried, I really did!). So I decide to fly up there to handle it all by myself

I am thinking about leaving this platform. To be honest I don't get anything out of it anymore and the only thing keeping me here is the less-rant'ish content like @devNews or the stories.

I am actually a bit disappointed, the quality of devrant really did degrade alot in the last few months. Don't get me wrong but I feel like people have become "normies" over here. I don't mean that in an edgy or degrading way but let me explain. When I started here I had a very high opinion of the people here. Everyone seemed like a passionate / knowledgeable individual from whom you could hear interesting stories or learn. Maybe I just saw it like that because I was still a very inexperienced dev and was looking for a dev community. But nonetheless I think devRant transformed into a place of mediocrity.

Dont get me wrong I wouldn't think of myself as aspiring or generally "better" than anyone else on here, but the content over here got a little stale.

I am not the kind of person who would "rant", in the first place, so I may have a different mindset and to be honest "ranting" has always been a thing I looked down upon. It just does not support my style of thinking. I totally get that people sometimes need to "vent" their feelings but there is nothing productive to gain from ranting, like you ain't not improving your situation by doing it. The more passionate raters over here call people things, I would never even dream about saying to people. Don't worry I'm no sjw or something like it, I don't care if you do it. If it helps you sure, why not. But there is a point where you corner yourself so much that you stop respecting your colleagues because they wrote that shitty code, instead of helping.

Some tech sure is bad, but it is not getting any better by insulting it.

Another thing I use to notice are people, thinking so highly of them selfes / being so close-minded - that they only accept their own views as true. These are the people that I always try to avoid, but that is getting harder and harder as time goes on.

Collectivism and group thinking are very strong on devRant making it really hard to defend a unpopular opinion - I get that devRant is not the kind of platform that would support actual proper arguments/discussions - but I still feels like some people shove opinions down another people's throat with no reasoning behind it.

Arguments on devRant are always won by the person coming up with the most witty response. Having another opinion is always seen as offensive. That's not exactly the definiton of open-mindedness.

Another rather annoying thing are what I call the "non dev, dev's". See: As a developer you should aspire to understand what your doing - I won't get into this too much but one sentencd: How are things like serious "Semicolon memes" a thing? I am as much into memes as the next guy, but debugging 3 hours, just to find out its a typo. I mean come on...

I sure get that devRant is not the kind of place where you would find the people I am looking for, and that's why I am leaving.

My whole post may seem super negative of the platform - and it is to an extend - but I sure also had a good time back in the day - devRant as in "the platform" surely is not at fault, but a forum is only as good as the people on it. Maybe I changed, maybe devRant did. All I know is that it is not for me anymore.

I won't delete my account and I probably will not leave completely, but all I will do is the "once a week" checkout.

Spent the whole day debugging two bugs in libraries only to notice that they were already fixed upstream FUCKING MONTHS AGO WITHOUT A NEW VERSION PUBLISHED GIVE ME BACK MY TIME FFS

Literally spent the whole day debugging a race condition that only showed up in the release build. Resolved it with a Sleep(0).

Where is my beer.

I'm debugging a script...

It takes 1+ minute to start because it loads data from remote API and apparently loading 80k objects takes a lot of time, even though I need only headers

I could optimize it. Like, add a local cache. But I will not.

Instead I will waste 1 minute, then another minute, then another minute, each time hoping it's the last pass, but no. I will waste the whole day on it and at the end of the day I will still NOT have the slightest idea why it is slow. That is what will happen, I predict it.

Good times

Had a bad day at work :( They gave me this code for some obscure streaming job and asked me to complete it. Only after 3 days did I realize that the LLD given to me was incorrect as the data model was updated. Another 2 more days, I was able to debug the code and run it successfully— I was able to parse the tables and generate the required frame but not able to stream it back to the output topic as per the LLD. That’s where I needed help but none of my emails/messages were replied to. The main guy who is pretty technical scheduled a code review session with me— I expected that I would run the code and he would spot it something I might’ve missed and why my streaming function isn’t working. Instead, what happened was that he grilled me on each and every line of the code (which had some obscure tables queried) and then got super mad at me saying “Why are we having this code review session if your code is not complete?”. I’m like bruh, you asked for it, and yes, the main parsing logic is done and I’m just having this issue in the last part. And he’s like “Why didn’t you tell me earlier?”. Wtf?! I left at least 5 emails and a dozen messages. He’s like this has to go live on Monday, and I’m like Ok, I’ll work in the weekend. And he’s like “Don’t tell me all these things! You’re not doing me a favor by working on weekends! How am I to ask my colleagues to connect with you separately on Saturday/Sunday? You should have done the on the weekdays itself. What were you doing this whole week?”. Bruh, I was running the code multiple times and debugging it using print statements. All while you were ignoring my attempts to reach out to you. SMH 🤦‍♂️ I can go on and on about this whole saga.

I am scratching my head since 2 days cause a rather large Dockerfile doesn't work as expected.

CMD Execution just leads to "File not found".

Thanks, that's as useless as one ply toilet paper...

Whoever wrote the Dockerfile (not me…) should get an oscar...

Even in diarrhea after eating the good one day old extra hot china takeout from dubious sources I couldn't produce such a dumpster fire of bullshit.

The worst: The author thought layering helps - except it doesn't really, as it's a giant file with roughly 14 layers If I count correctly.

I just found out the problem...

The author thought it would be great to add the source files of the node project that should be built as a volume to docker... Which would work I guess....

Except that the author is a clueless chimp who thought at the same time seemingly that folder organization means to just pour everything into one folder....

Yeah. That fucker just shoved everything into one folder.

Yeeeeeesssssssss.

It looks like this:
source
docker-compose.mounts.yml
docker-compose.services.yml
docker-compose.yml
Dockerfile-development
Dockerfile-production
Dockerfile
several bash scripts
several TS / JS / config files
...

If you read the above.... Yes.
He went so far to copy the large Dockerfile 3 times to add development and production specific overrides.

I can only repeat what I said many times before: If you don't like doing stuff, ask for fucking help you moron.

-.-

*gooozfraba*

Anyways...

He directly mounts this source directory as a volume.

And then executes a shell script from this directory...

And before that shit was copied in the large gooozfraba Dockerfile into the volume.

Yeeeaaah.

We copy stuff inside the container, then we just mount on start the whole folder and overwrite the copied stuff.

*rolls eyes* which is completely obvious in this pit latrine of YML fuckery called Dockerfile.

As soon as I moved the start script outside the folder and don't have it running inside the folder that is mounted via volume, everything works.

Yeah.... Maybe one should seperate deployment from source files, runtime related stuff from build stuff.

*rolls eyes*

I really hate Docker sometimes. This is stuff that breaks easily for reasons, but you cannot see it unless you really grind your teeth and start manually tracing and debugging what the frigging fuck the maniac called author produced.

Wouldn't call it a software bug but related:

Was developing an order system to expand in the UK. We have been developing it for the last 2 years and always had a one nasty bug in the system... Whatever we do, it still appears... Tried debugging to find the source, tried covering with tests - nothing helped it was still there. We even rewrote the whole system 3 times and it still was there!

One day, we have been given a stupid request from our manager - take a black background and make it even more blacker... That was it and I went to the CEO with letter where I stated that we should remove the manager... As I'm the Senior there, he did ask me why and eventually removed the manager...

Oh my guys, I've never felt so good after removing a bug! Since then - our application went live, we had our first customers and we were happily rolling new updates. And the best part - there was no BUG! Everything we did just had undocumented features or missing links but we haven't really had a single bug that was not caught by our automated tests!

---

Moral of the story:
Not only software can have bugs. People also can be "bugs" while bugging you about every single details they think is not working correctly.

Actually, it happened just before my current holidays.
I had prepared a whole system to feed and use a machine learning model. My colleague and some others had been working on a great thing, all encapsulated, all abstracted for my system.
My last day at the office, they had it ready.
I install their thing, load one model and launch one dummy prediction: error. I try with other input data: error
I try debugging a bit more, errors all the way. Knowing them, I asked if they wrote some unit tests.
"Sure we did"
I find the tests, yes there are some. And I notice:
"Hey, I see that in all your tests, you're making more than one prediction at a time (=aka using a matrix with more than one row)
- yeah, and it work fine
- in the project, we're doing one prediction at a time, did you try it with one prediction?"
He tries: error, that was totally what I said.
I started ranting on loosing the scope of the project, why we do tests in the first place.
Then, I grabbed my coat, said "see you in one week" and let them rework their code.
I was so angry at them, it seemed so basic to just check that 👹

Help. I work with a guy who really wants to learn programming (he’s sales/support rn) and is even taking some courses on it. He seems eager enough to learn, the problem is he is just so fucking stupid I don’t know whether to encourage him or level with him.

He somehow managed to pass a course on Java (which I still don’t believe since I had to help him put his lines of code in the right order ffs), but now he’s signed up for C++ and data structures and I honestly don’t know how he’s going to do it.

This is the type of guy who loves “coding” but thinks debugging is a waste of time.

Normally I encourage anyone who wants to learn programming do so, but let’s be honest it does take a modicum of intelligence and this guy has zero common sense at all. We’re talking about a guy who sent me a *screenshot* of an Excel file that I needed to copy some activation codes from. And then had absolutely no idea what was wrong when I replied “are you fucking with me right now?”

*sigh*

And that’s not even scratching the surface. I sent him a zip file containing some updated code and walked him through how to update them on Slack (really basic, copy/replace files stuff). Then the VERY next day when I sent him a second update he asks “is there something you want me to do with this?”

The instructions were literally the last thing we talked about in the chat log.

I actually fear the stuff this guy would unleash upon the world if someone were actually able to teach him how to write a whole program.

What should I do? Right now my plan is to be vaguely supportive but secretly hope he will realize he’s in over his head and drop out before any damage is done. But my worry is he may just be SO dumb that he actually thinks he can do it. At that point I guess I just have to put my faith in his school and pray that they aren’t just giving degrees away to whoever can afford them. Because fear the day this guy ever gets a degree in programming.

It was the last year of high school.

We had to submit our final CS homework, so it gets reviewed by someone from the ministry of education and grade it. (think of it as GPA or whatever that is in your country).

Now being me, I really didn’t do much during the whole year, All I did was learning more about C#, more about SQL, and learn from the OGs like thenewboston, derek banas, and of course kudvenkat. (Plus more)

The homework was a C# webform website of whatever theme you like (mostly a web store) that uses MS Access as DB and a C# web service in SOAP. (Don’t ask.)

Part 1/2:

Months have passed, and only had 2 days left to deadline, with nothing on my hand but website sketches, sample projects for ideas, and table schematics.

I went ahead and started to work on it, for 48 hours STRAIGHT.

No breaks, barely ate, family visited and I barely noticed, I was just disconnected from reality.

48 hours passed and finished the project, I was quite satisfied with my it, I followed the right standards from encrypting passwords to verifying emails to implementing SQL queries without the risk of SQL injection, while everyone else followed foot as the teacher taught with plain text passwords and… do I need to continue? You know what I mean here.

Anyway, I went ahead and was like, Ok, lets do one last test run, And proceeded into deleting an Item from my webstore (it was something similar to shopify).

I refreshed. Nothing. Blank page. Just nothing. Nothing is working, at all.

Went ahead to debug almost everywhere, nothing, I’ve gone mad, like REALLY mad and almost lose it, then an hour later of failed debugging attempts I decided to rewrite the whole project from scratch from rebuilding the db, to rewriting the client/backend code and ui, and whatever works just go with it.

Then I noticed a loop block that was going infinite.

NEVER WAIT FOR A DATABASE TO HAVE MINIMUM NUMBER OF ROWS, ALWAYS ASSUME THAT IT HAS NO VALUES. (and if your CPU is 100%, its an infinite loop, a hard lesson learned)

The issue was that I requested 4 or more items from a table, and if it was less it would just loop.

So I went ahead, fixed that and went to sleep.

Part 2/2:

The day has come, the guy from the ministry came in and started reviewing each one of the students homeworks, and of course, some of the projects crashed last minute and straight up stopped working, it's like watching people burning alive.

My turn was up, he came and sat next to me and was like:

Him: Alright make me an account with an email of asd@123.com with a password 123456

Me: … that won't work, got a real email?

Him: What do you mean?

Me: I implemented an email verification system.

Him: … ok … just show me the website.

Me: Alright as you can see here first of all I used mailgun service on a .tk domain in order to send verification emails you know like every single website does, encrypted passwords etc… As you can see this website allows you to sign up as a customer or as a merc…

Him: Good job.

He stood up and moved on.

YOU MOTHERFUCKER.

I WENT THROUGH HELL IN THE PAST 48 HOURS.

AND YOU JUST SAT THERE FOR A MINUTE AND GAVE UP ON REVIEWING MY ENTIRE MASTERPIECE? GO SWIM IN A POOL FULL OF BURNING OIL YOU COUNTLESS PIECE OF SHIT

I got 100/100 in the end, and I kinda feel like shit for going thought all that trouble for just one minute of project review, but hey at least it helped me practice common standards.

I took me the whole day of wondering and debugging to see that I was checking if a variable was 0, to set up some stuff, and the variable was only incremented after that check, but I had a return statement inside of it. So it just went in, saw that it was 0 and returned, over and over. And I was wondering why the fuck nothing happened... because that method got executed every second or so and should've moved the motor.
Gotta love your hardware programming. Either you do it right the very first time, or you spend the whole day staring at a piece of code, compiling, throwing in console prints etc.

Its 1 am, where I live btw.

Debugging webhooks is so fucking hard. Took me the whole day...

You haven't any real issues untill you start on DRM.
That stuff i complete blackbox where when something goes wrong you are completely left in the dark?

Been debugging a whole day with a college without luck...

Whole day of debugging 🤺

Jesus fucking christ.
I posted two rants today, both about trying to get my SD card reader to work on my arduino due...

After spending my whole day debugging, rewriting my code multiple times, cutting off anything that wasn't strictly necessary, writing my code procedurally, I finally decided to go and see what the library I HAVE to use is doing under the hood.

APPARENTLY...

uint_fast8_t is NOT 8 bits wide on my due...

The bitshifts were "overflowing" (not really, just taking more space, which it had access to) meaning that my data was getting corrupt.

FUCK YOU FOR TAKING A DAY OFF MY LIFE

The last 3 days I was working on a module that extends a built-in module to add extra functionalities. It was half a success cause the last feature was causing errors.

After spending all day debugging, I closed the IDE to leave work with disappointment. Then I noticed that the whole platform was throwing the last exception on every page, making it completely unusable.

Took me 5 minutes to fix it, just to make the platform usable again. And then I realized that I actually fixed the whole thing that took me all day to fix.

Leaving work Friday after completing pending long tasks.. Priceless!

How fucking sucking difficult is it too setup a static ip in AWS on a loadbalancer??? I spend the whole day figuring out how to use the nat gateway or other means and it still doesn't work. Debugging is almost impossible because they give you zero logs.

And all of this because a client wants to work with a whitelist for their shitty system on location.

Magento Debugging Horror!
Changing lots of things in magento with no problem. Continuing development for quite sometime. Suddenly decide to clear cache to see affect of a change on a template in frontent. Suddenly magento crashes! There's no error message. No exception log. No log in any file anywhere on the disk. All that happens is that magento suddenly returns you to the home page!
Reverting all the changes to the template. Clear the cache. Nope! Still the same! Why? Because the problem has happened somewhere in your code. Magento just didn't face it, because it was using an older version of your code. How? Because magento 2 even caches code! Not the php opcache. Don't get me wrong. It has it's own cache for code, in a folder called generated. Now that you cleared all the caches including this folder, you just realized that, somewhere something is wrong. But there is no way for you to know where as there is absolutely no exception logged anywhere!
So you debug the code, from index.php, down to the deepest levels of hell. In a normal php code, once the exception happens, you should see the control jumps to an exception handler, there, you can see the exception object and its call stack in your debugger. But that's not the case with magento.
Your debugger suddenly jumps to a function named:
write_close();
That's all. No exception object. No call stack. No way to figure out why it failed. So you decide to debug into each and every step to figure out where it crashes. The way magento renders response to each request is that, it calls a plugin, which calls a plugin loop, which calls another plugin, which calls a list of plugins, which calls a plugin loop, which calls another plugin.....
And if in each step, just by accident, instead of step through, you use the step over command of your debugger, the crash happens suddenly and you end up with the same freaking write_close() function with no idea what went wrong and where the error happened! You spend a whole day, to figure out, that this is actually a bug in core of magento, they simply introduced after your recent update of magento core to the latest STABLE version!!! It was not your mistake. They ruined their own code for the thousandth of time. You just didn't notice it, because as I said, you didn't clear the `generated` folder, therefore using an older version of everything!
Now that after spending 7 hours figuring out what has failed with absolutely no standard way of debugging and within a spaghetti of GOTO commands (Magento calls them plugin), why not report it to github? So you report it with a pull request. This also takes 1 hour of your time. Just to next day get informed that your pull request is rejected because another person already fixed the bug and made the same pull request. It was just not on the latest stable version yet!
So you decide to avoid updating magento as much as possible. Because you know that the next Stable version will make your life and career unstable. But then the customer complains that the Admin Panel is warning him of using old Magento version which might pose SECURITY THREATS!

One day I will learn that step 1 of debugging this project is "blow away the whole thing and recompile". But that seriously takes for fucking ever.

That feeling when you are debugging and java keeps throwing exceptions everywhere for the whole day, and just when you are about to turn off the pc and are resigned to go home with a code full of bugs, decide to launch the program one last time and Everything compile and works properly 😍

Tell me what is value of a "," ( comma) in programming?

Because
I spent a whole day debugging errors one after another and atlast the main reason of all errors leads to a fking comma 😑

Having a lot of bad experiences while working as intern in startups and about to join a MNC, i wanted to share my work life balance and technical demands that i expect from a company. These are going to be my list of checkpoints that i look forward , let me know which of them are way too unrealistic. also add some of yours if i missed anything :

Work life balance demands ( As a fresher, i am just looking forward for 1a, 2a and 8, but as my experience and expertise grows, i am looking forward for all 10. Would i be right to expect them? ):

1a 8 hr/day. 1b 9h/day
2a 5days/week. 2b 6 days/week
3 work from home (if am not working on something that requires my office presence)
4 get out of office whenever i feel like i am done for the day
5 near to home/ office cab service
6 office food/gym service
7 mac book for working
8 2-4 paid leaves/month
9 paid overtime/work on a holiday
10.. visa sponsorship if outside india

Tech Demands (most of them would be gone when i am ready to loose my "fresher " tag, but during my time in internship, training i always wished if things happened this way):

1. I want to work as a fresher first, and fresher means a guy who will be doing more non tech works at first than going straight for code. For eg, if someone hires me in the app dev team, my first week task should be documenting the whole app code / piece of it and making the test cases, so that i can understand the environment/ the knowledge needed to work on it

2. Again before coding the real meaningful stuff for the main product, i feel i should be made to prepare for the libraries ,frameworks,etc used in the product. For eg if i don't know how a particular library ( say data binding) used in the app, i should be asked to make a mini project in 1-2 days using all the important aspects of data binding used in the project, to learn about it. The number of mini tasks and time to complete them should be given adequately , as it is only going to benefit the company once am proficient in that tech

3. Be specific in your tasks for the fresher. You don't want a half knowledgeable fresher/intern think on its own diverging from your main vision and coding it wrong. And the fresher is definitely not wrong for doing so , if you were vague on the first place.

4. most important. even when am saying am proficient , don't just take my word for it. FUCKIN REVIEW MY CODE!! Personally, I am a person who does a lot of testing on his code. Once i gave it to you, i believe that it has no possible issues and it would work in all possible cases. But if it isn't working then you should sit with me and we 2 should be looking, disccussing and debugging code, and not just me looking at the code repeatedly.

4. Don't be too hard on fresher for not doing it right. Sometimes the fresher might haven't researched so much , or you didn't told him the exact instructions but that doesn't mean you have the right to humiliate him or pressurize him

5. Let multiple people work on a same project. Sometimes its just not possible but whenever it is, as a senior one must let multiple freshers work on the same project. This gives a sense of mutual understanding and responsibility to them, they learn how to collaborate. Plus it reduces the burden/stress on a single guy and you will be eventually getting a better product faster

Am i wrong to demand those things? Would any company ever provide a learning and working environment the way i fantasize?

I needed to migrate one DB to another with one sql suite but instead I fucked up and suddenly disconnected both DBs, without being able to reconnect them again
I waisted a whole day for debugging, but found nothing
And guess which magic fixed all issues? On and Off a service of an app
On and Off!!!
The fun thing is that restarting the server didn't help, but the only service helped

debugging escalated hard. started with neos, went over Apache and nginx. no more problems there after a clean db import. spent the whole day on this and endet up with the "result", that varnish, this fkn (most of the times helpful) bastard, is the problem. didn't get any results after that. meh.

just learned the hard way to always provide unambigious absolute (or relative, but with checking) paths to files....

men used to go to war,
now they spend the whole day debugging their code🤌