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--- GitHub 24-hour outage post mortem ---
As many of you will remember; Github fell over earlier this month and cracked its head on the counter top on the way down. For more or less a full 24 hours the repo-wrangling behemoth had inconsistent data being presented to users, slow response times and failing requests during common user actions such as reporting issues and questioning your career choice in code reviews.
It's been revealed in a post-mortem of the incident (link at the end of the article) that DB replication was the root cause of the chaos after a failing 100G network link was being replaced during routine maintenance. I don't pretend to be a rockstar-ninja-wizard DBA but after speaking with colleagues who went a shade whiter when the term "replication" was used - It's hard to predict where a design decision will bite back and leave you untanging the web of lies and misinformation reported by the databases for weeks if not months after everything's gone a tad sideways.
When the link was yanked out of the east coast DC undergoing maintenance - Github's "Orchestrator" software did exactly what it was meant to do; It hit the "ohshi" button and failed over to another DC that wasn't reporting any issues. The hitch in the master plan was that when connectivity came back up at the east coast DC, Orchestrator was unable to (un)fail-over back to the east coast DC due to each cluster containing data the other didn't have.
At this point it's reasonable to assume that pants were turning funny colours - Monitoring systems across the board started squealing, firing off messages to engineers demanding they rouse from the land of nod and snap back to reality, that was a bit more "on-fire" than usual. A quick call to Orchestrator's API returned a result set that only contained database servers from the west coast - none of the east coast servers had responded.
Come 11pm UTC (about 10 minutes after the initial pant re-colouring) engineers realised they were well and truly backed into a corner, the site was flipped into "Yellow" status and internal mechanisms for deployments were locked out. 5 minutes later an Incident Co-ordinator was dragged from their lair by the status change and almost immediately flipped the site into "Red" status, a move i can only hope was accompanied by all the lights going red and klaxons sounding.
Even more engineers were roused from their slumber to help with the recovery effort, By this point hair was turning grey in real time - The fail-over DB cluster had been processing user data for nearly 40 minutes, every second that passed made the inevitable untangling process exponentially more difficult. Not long after this Github made the call to pause webhooks and Github Pages builds in an attempt to prevent further data loss, causing disruption to those of us using Github as a way of kicking off our deployment processes (myself included, I had to SSH in and run a git pull myself like some kind of savage).
Glossing over several more "And then things were still broken" sections of the post mortem; Clever engineers with their heads screwed on the right way successfully executed what i can only imagine was a large, complex and risky plan to untangle the mess and restore functionality. Github was picked up off the kitchen floor and promptly placed in a comfy chair with a sweet tea to recover. The enormous backlog of webhooks and Pages builds was caught up with and everything was more or less back to normal.
It goes to show that even the best laid plan rarely survives first contact with the enemy, In this case a failing 100G network link somewhere inside an east coast data center.
Link to the post mortem: https://blog.github.com/2018-10-30-...7 -
How has coding impacted your life...?
- Using Linux
- Valuing OpenSorce over cracked software
- Using more CLI than GUI programs
- Only playing games that run on Linux or Wine
- Hating Micro$oft
- Utilizing VMs and Servers
- Tinkering with Hardware (RPi, custom PC)
- ...
... Nah not that much. 🤗😅13 -
I think this is so far one of the most priceless WTF moments I encountered at my current work:
A coworker of mine came up to me explaining the problem he had with russian characters in the filename. He explained in detail that everything works ok (the other part of the code he was fixing) if he changes the name of the file to test1.xlsx for example which doesn't use russian characters. OK great.
Then he goes on to show me how he fixed the other stuff and of course everything blows up. The file he used for demonstration was of course the original file our cusotomer provided, he just deleted the obvious russian chars and left the rest.
МТС != MTC
I cracked up: but you still have russian chars in the name.
The guy: no way, I deleted them all.
Me: but what about that МТС in the name?! Guy: what about it?
Me: did you actually typed that in or you left it there?! Those are russian chars that are fucking things up for you.
Guy: no way, it's MTC.
Me: checked the logs, you have ??? In the filename instead of МТС..don't you find that at least a little bit suspicious?!
Guy: but it looks the same. How does it (the computer) know it is in russian?!? //Why doesn't it understand?!
O.o I still can't believe it.. Is it just me & my high standards, or should it be normal for coders to know things such as character encoding & stuff?!?
I almost died of laughter, he and some other guy had problems finding customers in the software due to not being able to type the russian chars << happened more then once before, even after I told them about a quick hack on how to use google translate onboard keyboard & other stuff to make proper chars so they can get a match..
I think when they bury me, I'll still be facepalming and laughing over this incident. 🤣🤣🤣🤣🤣🤣🤣7 -
A person just bought a 3000€ workstation and asked me to install cracked versions of Office, AutoCAD, full Adobe suite and Rhino with plugins. And he's going to use them at work to make money.
So, since I have to, I installed 2-3 years old versions of each, in English (he only knows Italian) and blocked all the connections so he can't receive any update/fix or use web related functionalities. I also disabled all autostarting components and contextual menu / OS integrations (although this can be seen as a plus).
When he's calling me asking to "fix" things, I will simply say "sorry, it's the only way for the crack to work, if you want everything you'd better pay for a license or else go open source".
Why can't people understand the value of the complex software they use? Just because it's not a material thing doesn't mean it's not a steal43 -
I just bought some software that I have had a cracked version of for a few years. That feels so good17
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There is no hope for this one. Actual user remark: "I had to uninstall AVG: it kept bugging me with these irritating warnings whenever I try to install new cracked (with microtorrent downloaded) software" :/1
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So today in discord one guy cracked this banger:
"Engineering in a nutshell"
Engineer A: *explains for 20minutes how to solve the problem in a very complex way*
Engineer B: "Or you could just put a screw here"
A: Dude that can't....
A: Fuck you you're right
B: you're welcome
Applicable in any engineering department, software included! xD8 -
So my story has some little backstory.
I got into computers and technology because of my dad. He was very enthusiastic when I was little and when I grew older and started my apprenticeship as a software developer he was really proud. Note that he never learned anything like that. He just loved computers and games.
Now to the story itself.
I learned more and more, also about networking and came to the conclusion that our slow internet and rare internet problems probably come from stock/weird configurations. But my dads proud probably told him thats a thing he still has to do as the dad. But it annoyed me so much that I booted into kali linux, loaded an exploit to get the web admin passwort and cracked it within a minute. 😎
Finally I was able to configure everything correctly ( channels were spammed from neighbours so I switched to very unused and the disturbions got less ).
TL;DR: Dad didnt want me to configure our router and didnt give me the admin password, so I booted Kali Linux and used an exploit to get it myself 😎😎3 -
1. No paper-pen exams asking defination of OOPs.
2. Introduction of VCS (e.g. GitHub, SVN, etc.)
3. Introduction of new programmimg languages in the curriculum.(Pls stop with C/C++...there are 1000s of tutorial for that)
4. Give access to licensed software. (Especially in India we were forced to use cracked softwares).
There is a lot to change. But i think mentioned all the important stuff.5 -
I fucking hate the Internet
day before Yesterday, I was searching for a software on internet(which is not free) I found a site (unofficial) giving me both free full & trial version. so I thought, why not get the full version. I downloaded it, installed it. awesome.
everything was going great until I found out that all of my files in a folder were encrypted by some WankDecrypt. I was lucky the files in that folder were useless. but next day some mysterious links started to pop up into my browser. and today some fucking wank decentralized shit started eating up my ram. FML
Somebody fucking stuck his shit with cracked version of software. so beware devs.
13 -
Do you think it's wrong when I use a cracked version of a not free software because I genuinely cannot afford to pay, I am not using it to make money either14
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This started as an update to my cover story for my Linked In profile, but as I got into a groove writing it, it turned into something more, but I’m not really sure what exactly. It maybe gets a little preachy towards the end so I’m not sure if I want to use it on LI but I figure it might be appreciated here:
In my IT career of nearly 20 years, I have worked on a very wide range of projects. I have worked on everything from mobile apps (both Adroid and iOS) to eCommerce to document management to CMS. I have such a broad technical background that if I am unfamiliar with any technology, there is a very good chance I can pick it up and run with it in a very short timespan.
If you think of the value that team members add to the team as a whole in mathematical terms, you have adders and you have subtractors. I am neither. I am a multiplier. I enjoy coaching, leading and architecture, but I don’t ever want to get out of the code entirely.
For the last 9 years, I have functioned as a technical team lead on a variety of highly successful and highly productive teams. As far as team leads go, I tend to be a bit more hands on. Generally, I manage to actively develop code about 25% of the time to keep my skills sharp and have a clear understanding of my team’s codebase.
Beyond that I also like to review as much of the code coming into the codebase as practical. I do this for 3 reasons. I do this because as a team lead, I am ultimately the one responsible for the quality and stability of the codebase. This also allows me to keep a finger on the pulse of the team, so that I have a better idea of who is struggling and who is outperforming. Finally, I recognize that my way may not necessarily be the best way to do something and I am perfectly willing to admit the same. I have learned just as much if not more by reviewing the work of others than having someone else review my own.
It has been said that if you find a job you love, you’ll never work a day in your life. This describes my relationship with software development perfectly. I have known that I would be writing software in some capacity for a living since I wrote my first “hello world” program in BASIC in the third grade.
I don’t like the term programmer because it has a sense of impersonality to it. I tolerate the title Software Developer, because it’s the industry standard. Personally, I prefer Software Craftsman to any other current vernacular for those that sling code for a living.
All too often is our work compiled into binary form, both literally and figuratively. Our users take for granted the fact that an app “just works”, without thinking about the proper use of layers of abstraction and separation of concerns, Gang of Four design patterns or why an abstract class was used instead of an interface. Take a look at any mediocre app’s review distribution in the App Store. You will inevitably see an inverse bell curve. Lot’s of 4’s and 5’s and lots of (but hopefully not as many) 1’s and not much in the middle. This leads one to believe that even given the subjective nature of a 5 star scale, users still look at things in terms of either “this app works for me” or “this one doesn’t”. It’s all still 1’s and 0’s.
Even as a contributor to many open source projects myself, I’ll be the first to admit that have never sat down and cracked open the Spring Framework to truly appreciate the work that has been poured into it. Yet, when I’m in backend mode, I’m working with Spring nearly every single day.
The moniker Software Craftsman helps to convey the fact that I put my heart and soul into every line of code that I or a member of my team write. An API contract isn’t just well designed or not. Some are better designed than others. Some are better documented than others. Despite the fact that the end result of our work is literally just a bunch of 1’s and 0’s, computer science is not an exact science at all. Anyone who has ever taken 200 lines of Java code and reduced it to less than 50 lines of reactive Kotlin, anyone who has ever hit that Utopia of 100% unit test coverage in a class, or anyone who can actually read that 2-line Perl implementation of the RSA algorithm understands this simple truth. Software development is an art form. I am a Software Craftsman.
#wk171 -
1. What paid software do you have installed in your PC [that you are actually paying for]?
2. What paid cracked software do you have installed in your PC [that you should be paying for, but aren't]?
And what are the prices?18 -
I wonder if software companies leaks their cracked product to internet with viruses to remove users' desire for using their products for free 🤔3
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Any suggestions on android data recovery ??
The device is not rooted and there weren't any backups.
I have already tested different paid (cracked) software on another device for testing purpose but none of them work.
Send Help!!7
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