One of the first instances of this series where the problem wasn't caused by utter negligence and instead by a minor blunder. I mean, the engineers even pre-scaled their servers preparing for disaster
Honestly Allegro is one of the best services considering the technology behind it. Starting with their own cloud infrastructure, which ironically in this case was the reason the cloud engineers recruited from working on other infrastructures might have hadn't the experience to scale properly.
@@mr.cauliflower3536 Allegro is a marketplace, where individual sellers list their offers. Warehouse workers in Poland don't have it that bad. Many employers who never thought of themselves as pickers or packers actually love working for Polish e-commerce businesses, because it's lightweight job. I have never heard of cases of exploitation attributed to amazon warehouses. There are also lots of logistics and fullfilment centers, as well as Allegro owns their official store and offers Allegro fulfillment to sellers recently, but as far as I know most logistics employees are fully satisfied with their job, many e-commerce owners also becoming delivery couriers and similar cases.
I don't know Allegro or whether they have had any controversies but not only did they fix the issue within 25 minutes, they even gave vouchers for the very phone to people who couldn't make the purchase. Pretty darn good if you ask me.
Yeah Allegro has pretty good customer support, handles shipping and returns extremely well, overall the experience is very good. I almost always use Allegro for online shopping, just because they make the shipping and returns easy.
Yeah Allegro has pretty good customer support, handles shipping and returns extremely well, overall the experience is very good. I almost always use Allegro for online shopping, just because they make the shipping and returns easy.
@@kubastachu9860 Just because some services were failing doesn't mean all were. Perhaps the basket handling service was fine and registered a "checkout" event but the payment services were failing.
@@gvcvbbhvbbccxcvn no need to tell anyone anymore how to pronounce basic words. you can just go to google translate, paste the word and click the loudspeaker icon (in almost all cases)
When I recently wrote a support ticket system for my department, I always had in the back of my mind "If this failed, what would be in Kevin Fang's video about it?" I can honestly say it made me more conscious about how I was designing the thing.
i'm glad you don't shy away from going into deeper explainations for common parts we take for granted. i know other youtubers mention that when they go more in depth retention falls, but i always enjoy learning in a new way. i already knew most of the file desc information but your explanation will make it easier for me to tell others how they work. keep it up kevin!
@@Qoobon_ exactly, or he could have said how much it was worth in dollars when reading it at the start, as in "for around 25 cents", which would have fixed the issue _(and I'm from Poland too, I understand not knowing how to say something but he could have 1. learned how to say the single word or at least 2. just said PLN, as you said)_
@@Qoobon_yeah but realistically this is such a minor issue and isn't wholly relevant to the point. You can switch it to any currency or even anything and it would work
i actually never expected a video about Allegro of all things, let alone such a wild occurence i never knew about despite our family's frequent use of it, quite a pleasant suprise though
Good Video! I hope you will make one about the recent Cloudflare outage where PDX-04 failed. As usual, they mad a post mortem that is pretty fun to read
Allegro is the best marketplace btw. Ebay or Amazon aren't even remotely close to be considered good in Poland and that's a fact 💪 My Allegro account is over 11 years old now with hundreds if not thousands of orders and I've never had ANY issue. Not even once. I've got such a big respect to them that you can't imagine. I always wondered why they haven't spread into European market.
I love the Aqua Teen Hunger Force-style explosions whenever things go wrong (for those that don't know, most of the time if a character threw something on the ground it would explode for no particular reason)
I love this channel. It’s like fireship but for security and infrastructure and that’s a good thing. You guys should collaborate and truly break the internet (by causing the monthly cloud flare outage)
Although my only connection to aviation is as a passenger, I still enjoy his videos. It's the same with Kevin Fang's videos except it's a lot more relevant to me.
Absolutely; the largest telecommunications outage in Australian history. 10 million customers* across mobile, landline POTS and NBN could not get even basic service for 8 hours. Optus landlines couldn't even ring the emergency phone number 000. The post-mortem on that will be very interesting indeed. *10 million customers affected, and Australia's population is 27 million. More than a third of the country.
@@3rdalbumid hope that theyll publish technical details about what went wrong. I feel like this time they might given the pressure from the Australia government
just gotta say the allegro zone on the Woodstock/ Pol and Rock festival is pretty good was 3 times there already (very nice festival btw and its FREEEEEE )
Did not read about this event back then, but very informative. Everybody can learn lots of stuff from your videos. Not sure, if it really fits in your scope, but do you plan a video about M$s master key incident?
way too much of my backend/infra knowledge is coming from these videos, they are just so close enough to reality that my silly brain can understand them as realworld examples :)
Talking about Poland… I remember some time ago our government launched an app that works like an ID on steroids (very handy btw). Some PR smarty pants decided it would be a great idea to announce a simultaneous launch in entire country at once. (Spoiler: it was not xD)
We have the same thing in Ukraine, called "Дія"("Action" in English). It also allows to keep other documents there, not just ID. It allows to use more then 100 different services such as receiving certificate of income, monetary assistance at the birth of a child, etc. And there are sometimes polls such as "Leave September 8th as a holiday?". I am surprised how few countries have such a program.
Love your videos man, don't know if you ever gonna see this comment, but wanted to leave a shout out as your videos taught me a lot and encourage me to pursue a career in Cybersecurity and I finally manage to land a job as an Identity and Access Management Developer.
i would love to have modern hole punch cards would be so cool. Id buy a modern hole punch machine ad the necessary paper. Absolutely loved the video so funny but also good explanations.
Yes, techically by default it'll be at most 1021 connections (because 3 FDs are always created for every application for stdin, stdout and stderr input/output streams). But can be tweaked, and it's common to tweak that number up to 32k. And it's not Linux, but single application limit. You can run 4 applications and all of them will accept 4k connections in total, but each 1k max (by default).
can you cover the time when facebook went down because an employee deleted critical files? im talking about the one where facebook whatsapp and all that went down
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
One of the first instances of this series where the problem wasn't caused by utter negligence and instead by a minor blunder. I mean, the engineers even pre-scaled their servers preparing for disaster
Honestly Allegro is one of the best services considering the technology behind it. Starting with their own cloud infrastructure, which ironically in this case was the reason the cloud engineers recruited from working on other infrastructures might have hadn't the experience to scale properly.
@@kubastachu9860Yeah. As for treatment of warehouse workers...
@@mr.cauliflower3536 Allegro is a marketplace, where individual sellers list their offers. Warehouse workers in Poland don't have it that bad. Many employers who never thought of themselves as pickers or packers actually love working for Polish e-commerce businesses, because it's lightweight job. I have never heard of cases of exploitation attributed to amazon warehouses. There are also lots of logistics and fullfilment centers, as well as Allegro owns their official store and offers Allegro fulfillment to sellers recently, but as far as I know most logistics employees are fully satisfied with their job, many e-commerce owners also becoming delivery couriers and similar cases.
@@mr.cauliflower3536 Allegro has it's own warehouses!? I thought it was more like e-bay.
@@Murloc017I think it has some, which would make sense with them offering free shipping.
I don't know Allegro or whether they have had any controversies but not only did they fix the issue within 25 minutes, they even gave vouchers for the very phone to people who couldn't make the purchase. Pretty darn good if you ask me.
Yeah Allegro has pretty good customer support, handles shipping and returns extremely well, overall the experience is very good. I almost always use Allegro for online shopping, just because they make the shipping and returns easy.
Yeah Allegro has pretty good customer support, handles shipping and returns extremely well, overall the experience is very good. I almost always use Allegro for online shopping, just because they make the shipping and returns easy.
interesting how they were able to track down each single failed purchase even during an overload, innit?
@@kubastachu9860 Just because some services were failing doesn't mean all were. Perhaps the basket handling service was fine and registered a "checkout" event but the payment services were failing.
@@kubastachu9860 Queues are a marvellous thing :)
0:22 "One Polish unit of currency"
Bro, I can't
aka "Oneonion"
Someone tell him ł is like english w
and y is like the I in pig@@gvcvbbhvbbccxcvn
@@gvcvbbhvbbccxcvn no need to tell anyone anymore how to pronounce basic words. you can just go to google translate, paste the word and click the loudspeaker icon (in almost all cases)
It's better than hearing an English speaker fail to pronounce polish properly
Unironically one of the best channels out here
Oh yeah i agree this guy doesn't try hard to make us laugh he's just great!
no
@@olivercharles2930 nuh uh
@@olivercharles2930not like your channel's any better
Agree
When I recently wrote a support ticket system for my department, I always had in the back of my mind "If this failed, what would be in Kevin Fang's video about it?"
I can honestly say it made me more conscious about how I was designing the thing.
"probably it wasn't going to be that bad"
I love the amount of effort that goes into these videos. I literally sometimes have to rewind a bit just incase I missed a joke in the edit.
didn't expect to see you there
so true 🐟
@@hpfxd i'm big fan hpf
Kevin posted, the day is saved
i'm glad you don't shy away from going into deeper explainations for common parts we take for granted. i know other youtubers mention that when they go more in depth retention falls, but i always enjoy learning in a new way. i already knew most of the file desc information but your explanation will make it easier for me to tell others how they work. keep it up kevin!
Congrats on 100k. You still deserve many more.
I love this!!
Nie spodziewałem się historii z Allegro na tym kanale :D
Chyba nikt się nie spodziewał i to jeszcze z polskimi źródłami
Nasi tu są
@@pecet Zawsze byli
@@pecet Brakuje tylko komentarza "Polska przejmuje ten film" ;)
No witam @@pecet
1:54 love that bit and so much more, love your edits.
As a pole I love how you just skipped reading the word "ZŁOTY" ❤️
I dont. He could just say PLN. People do sau USD after all
@@Qoobon_ exactly, or he could have said how much it was worth in dollars when reading it at the start, as in "for around 25 cents", which would have fixed the issue _(and I'm from Poland too, I understand not knowing how to say something but he could have 1. learned how to say the single word or at least 2. just said PLN, as you said)_
@@Qoobon_yeah but realistically this is such a minor issue and isn't wholly relevant to the point. You can switch it to any currency or even anything and it would work
@@szczesciar or you can get a sense of humour
i actually never expected a video about Allegro of all things, let alone such a wild occurence i never knew about despite our family's frequent use of it, quite a pleasant suprise though
This is probably my favourite channel right now please keep these amazing videos up!
Good Video! I hope you will make one about the recent Cloudflare outage where PDX-04 failed. As usual, they mad a post mortem that is pretty fun to read
Thank you for suggestion. I have looked up the article, seems like an interesting read.
Cloudflare could sustain this channel with weekly uploads.
Holy moly, a Kevin Fang video, this is rarer than the fucking solar eclipse. Lemme get popcorn.
can't wait for the allegro zone tour by kevin
Allegro is the best marketplace btw. Ebay or Amazon aren't even remotely close to be considered good in Poland and that's a fact 💪
My Allegro account is over 11 years old now with hundreds if not thousands of orders and I've never had ANY issue. Not even once. I've got such a big respect to them that you can't imagine. I always wondered why they haven't spread into European market.
Amazon probably pays them to stay in Poland
Didn't expect to see allegro here, and honestly that's probably first time i see foreign chanel even mention Allegro.
I love the Aqua Teen Hunger Force-style explosions whenever things go wrong (for those that don't know, most of the time if a character threw something on the ground it would explode for no particular reason)
I love this channel. It’s like fireship but for security and infrastructure and that’s a good thing. You guys should collaborate and truly break the internet (by causing the monthly cloud flare outage)
"one Polish unit of currency" hahahaha - how long did you spend looking at the phonetic spelling of zloty before opting for this
For those wondering, it's along the lines of zwoh-tee
it's not zloty you forgot the diacritics
This was the best description of a file descriptor I've ever seen.
this video is unironically really interesting and just well put together, and you just earned a subscriber.
I love your animations and fake code screenshots, you never fail to entertain!
polish amazon really dropped the price of a €200 phone to 20 cents ☠️
But only 100 phones for that price
Top shelf videos Kevin, the edits are tight, keep them coming! 👍
Uwaga uwaga. Film znajduje się w rękach Polski.
i love these!
its like a "disaster recap" show but for computing instead of buildings or transport!
Am I the only one that noticed a 7 in the binary data at 3:17 ?
just searched through the comments to see if anyone else noticed
mfw Kevin can't pronounce *złoty*
>translate
>"gold"
@@cirkulx or evil you... ZŁO TY
@@cirkulx Yes
I love this channel and in-depth analization of failures
catastrophic misspelling here 🤣
@@ZENBONES1991analization ❤️
Analysis 😭 (please don't edit to fix the word I got a nice chuckle out of it)
didnt expect u covering a polish service, cool
3:13 When the file icon changes to binary there is a hidden 7 betweein 1 and 0.
The power of Janusz broke internet
BABE, WAKE UP!! ANOTHER POST MORTEM FROM KEVIN FANG!!
i was looking for this channel for a while thank god you uploaded again
"Deals so good our servers imploded!"
6:00 I remember the "FILES" arg in MS-DOS. Glad I don't have to even think about it anymore.
pristine editing style, love your vids!
you should mention it's not just polish version of amazon, it's much better than amazon
Why is there a 7 in the binary sequence 😂
Always enjoy your videos, great work.
Out of everything I wouldn’t expect our lil allegro here ;)
i like this guy effort to tell us story but with comedy
keep this quality we don't need fancy editing
3:16
Row 2 column 5
Allegro is more of a Polish eBay though. Polish Amazon just started and it's called Wszystko (lit. Everything).
Please continue this series. You're like the @MentourPilot of software disasters!
Although my only connection to aviation is as a passenger, I still enjoy his videos. It's the same with Kevin Fang's videos except it's a lot more relevant to me.
I don't think he would become a Better Help shill. Don't insult Kevin like that
please never stop making videos. genuinely some of the funniest (at least to the IT niche) and most informative videos out there
finally a new vid! all your uploads are so good😊
great vid as always keep it up man i love watching how you create funny storys about IT
3:16 damn this guy has unlocked the legendary octary computer
Another banger video, keep up the great work
Huh, thanks. Never knew I needed this kind of video. 🙂
wake up babe new kevin fang banger dropped
Dear creator, thank you. Please keep the videos coming.😊
@Kevin, would you consider, please, doing a video on how the rebooted MySpace music platform lost all of their data in a botched migration?
never knew there was a file descriptor limit. Does that mean any single process web server is by default limited to 1024 active connections?
By default yes
pls do a video about the national Optus outage in Australia (once there is more info published)
Absolutely; the largest telecommunications outage in Australian history. 10 million customers* across mobile, landline POTS and NBN could not get even basic service for 8 hours. Optus landlines couldn't even ring the emergency phone number 000. The post-mortem on that will be very interesting indeed.
*10 million customers affected, and Australia's population is 27 million. More than a third of the country.
@@3rdalbumid hope that theyll publish technical details about what went wrong. I feel like this time they might given the pressure from the Australia government
Forget the phone, the real problem is that you still can't get a pendant with Mussolini ;-)
just gotta say the allegro zone on the Woodstock/ Pol and Rock festival is pretty good was 3 times there already (very nice festival btw and its FREEEEEE )
Amazing editing.
allegro rządzi
I love to rewatch this videos
3:10 hahahahaha!!! I wasn't expecting that :D
Love the classic explosion sound effect.mp3 as always 💻💥
All of Kevin's videos are bangers but the Vsauce reference at 3:13 is excellent
Did not read about this event back then, but very informative. Everybody can learn lots of stuff from your videos. Not sure, if it really fits in your scope, but do you plan a video about M$s master key incident?
TCP Connections require a file descriptor?! WTF?
stdin, stderr and stdout too :)
Thank Unix's philosophy for that
To identify the connection obviously
3:52 - it's 4kB, not 8kB... and some time ago it was 512bytes.
way too much of my backend/infra knowledge is coming from these videos, they are just so close enough to reality that my silly brain can understand them as realworld examples :)
I've been to Allegro zone in 2019. Well, I never thought I'd ever say that in my life.
0:18 1 Polish unit of currency lol
Where do you find these stories? Such a great work. 👍
Talking about Poland… I remember some time ago our government launched an app that works like an ID on steroids (very handy btw). Some PR smarty pants decided it would be a great idea to announce a simultaneous launch in entire country at once. (Spoiler: it was not xD)
mObywatel?
We have the same thing in Ukraine, called "Дія"("Action" in English).
It also allows to keep other documents there, not just ID.
It allows to use more then 100 different services such as receiving certificate of income, monetary assistance at the birth of a child, etc.
And there are sometimes polls such as "Leave September 8th as a holiday?".
I am surprised how few countries have such a program.
This is the most Polish story ever.
4:19 is that a data wing reference? Data wing is a cool game
as Allegro worker, I can confirm
The memes are strong with this channel!
lsof has always been my favorite command
Didn't think to google how to pronounce zloty?
All this file talk is going straight over my head lol
A Kevin Fang video going live on the day that I release a very large, complex, scale-oriented change to production is some apocryphal shit 😅
This is amazing, I love this
Love your videos man, don't know if you ever gonna see this comment, but wanted to leave a shout out as your videos taught me a lot and encourage me to pursue a career in Cybersecurity and I finally manage to land a job as an Identity and Access Management Developer.
3:18 bro, who the hell types a 7 when writing in binary??? xy=5,11
amazing video!
i would love to have modern hole punch cards would be so cool. Id buy a modern hole punch machine ad the necessary paper. Absolutely loved the video so funny but also good explanations.
Please upload more. Your videos are so good 🙏🙏
Great video, laughed so much at the vsauce reference
I had no idea about the file descriptors. So, this means Linux only accepts 1k connections by default?
Yes, but it can be changed to any large number with simple commands, without modifying the kernel
Yes, techically by default it'll be at most 1021 connections (because 3 FDs are always created for every application for stdin, stdout and stderr input/output streams).
But can be tweaked, and it's common to tweak that number up to 32k.
And it's not Linux, but single application limit. You can run 4 applications and all of them will accept 4k connections in total, but each 1k max (by default).
thanks, plus the humor is so good 💀
wake up guys new kevin fang video dropped
can you cover the time when facebook went down because an employee deleted critical files? im talking about the one where facebook whatsapp and all that went down
I know someone who worked at allegro, I wonder if she was there while this was going on
They have many engineering teams who specialises on doing their part of job. Most of programmers would only know the day after.
Goated SDE channel.
That was one of the most consise but still usable explanation of linux files I've seen
100k subs?? damn! YOU DESERVE IT THO
3:10 I hear what you did there.... OR DO I?
Allegro is more like Polish eBay than Amazon.
ebay is also used in poland