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Search - "system under test"
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Was lead developer at a small startup, I was hiring and had a budget to add 3 new people to my team to develop a new product for the company.
Some context first and then the rant!
Candidate 1 - Amazing, a dev I worked with before who was under utilized at the previous company. Still a junior, but, she was a quick learner and eager to expand her knowledge, never an issue.
Candidate 2 - Kickass dev with back end skills and extras, he was always eager to work a bit more than what was expected. I use to send him home early to annoy him. haha!
Candidate 3 - Lets call him P.
In the interview he answers every question perfectly, he asks all the right questions and suggests some things I havent even thought of. CTO goes ahead and says we should skip the technical test and just hire the guy, his smart and knows what his talking about, I agree and we hire him. (We where a bit desperate at this stage as well.)
He comes in a week early to pick up his work laptop to get setup before he starts the next week, awesome! This guy is going to be an asset to the company, cant wait to have him join the team - The CTO at this stage is getting ready to leave the company and I will be taking over the division and need someone to take over lead position, he seems like the guys to do it.
The guys starts the next week, he comes in and the laptop we gave him is now a local server for testing and he will be working off his own laptop, no issue, we are small so needed a testing stack, but wasnt really needed since we had procedures in place for this already.
Here is where everything goes wrong!!! First day goes great... Next day he gets in early 6:30am (Nice! NO!), he absolutely smells, no stinks, of weed, not a light smell, the entire fucking office smells of weed! (I have no problem with weed, just dont make it my problem to deal with). I get called by boss and told to sort this out people are complaining! I drive to office and have a meeting with him, he says its all good he understands. (This was Friday).
Monday comes around - Get a call from Boss at 7:30am. Whole office smells like weed, please talk to P again, this cannot happen again. I drive to office again, and he again says it wont happen again, he has some issues with back pain and the weed helps.
Tuesday - Same fucking thing! And now he doesnt want to sign for the laptop("server") that was given to him, and has moved to code in the boardroom, WHERE OUR FUCKING CLIENTS WILL BE VIEWING A DEMO THAT DAY OF THE PRODUCT!! Now that whole room smells like weed, FML!
Wednesday - We send P a formal letter that he is under probation, P calls me to have a meeting. In the meeting he blames me for not understanding "new age" medicine, I ask for his doctors prescription and ask why he didnt tell me this in the interview so I could make arrangements, we dont care if you are stoned, just do good work and be considerate to your co-workers. P cant provide these and keeps ranting, I suggest he takes pain killers, he has none of it only "new age" medicine for him.
Thursday - I ask him to rather "work" from home till we can get this sorted, he comes in for code reviews for 2 weeks. I can clearly see he has no idea how the system works but is trying, I thought I will dive deeper and look at all of his code. Its a mess, nothing makes sense and 50% of it is hard coded (We are building a decentralized API for huge data sets so this makes no sense).
Friday - In code review I confront him about this, he has excuses for everything, I start asking him harder questions about the project and to explain what we are building - he goes quiet and quits on the spot with a shitty apology.
From what I could make out he was really smart when it came to theory but interpreting the theory to actual practice wasnt possible for him, probably would have been easier if he wasnt high all the time.
I hate interview code tests, but learned a valuable lesson that day! Always test for some code knowledge as well even if you hate doing it, ask the right questions and be careful who you hire! You can only bullshit for so long in coding before someone figures out that you are a fraud.16 -
Worst dev team failure I've experienced?
One of several.
Around 2012, a team of devs were tasked to convert a ASPX service to WCF that had one responsibility, returning product data (description, price, availability, etc...simple stuff)
No complex searching, just pass the ID, you get the response.
I was the original developer of the ASPX service, which API was an XML request and returned an XML response. The 'powers-that-be' decided anything XML was evil and had to be purged from the planet. If this thought bubble popped up over your head "Wait a sec...doesn't WCF transmit everything via SOAP, which is XML?", yes, but in their minds SOAP wasn't XML. That's not the worst WTF of this story.
The team, 3 developers, 2 DBAs, network administrators, several web developers, worked on the conversion for about 9 months using the Waterfall method (3~5 months was mostly in meetings and very basic prototyping) and using a test-first approach (their own flavor of TDD). The 'go live' day was to occur at 3:00AM and mandatory that nearly the entire department be on-sight (including the department VP) and available to help troubleshoot any system issues.
3:00AM - Teams start their deployments
3:05AM - Thousands and thousands of errors from all kinds of sources (web exceptions, database exceptions, server exceptions, etc), site goes down, teams roll everything back.
3:30AM - The primary developer remembered he made a last minute change to a stored procedure parameter that hadn't been pushed to production, which caused a side-affect across several layers of their stack.
4:00AM - The developer found his bug, but the manager decided it would be better if everyone went home and get a fresh look at the problem at 8:00AM (yes, he expected everyone to be back in the office at 8:00AM).
About a month later, the team scheduled another 3:00AM deployment (VP was present again), confident that introducing mocking into their testing pipeline would fix any database related errors.
3:00AM - Team starts their deployments.
3:30AM - No major errors, things seem to be going well. High fives, cheers..manager tells everyone to head home.
3:35AM - Site crashes, like white page, no response from the servers kind of crash. Resetting IIS on the servers works, but only for around 10 minutes or so.
4:00AM - Team rolls back, manager is clearly pissed at this point, "Nobody is going fucking home until we figure this out!!"
6:00AM - Diagnostics found the WCF client was causing the server to run out of resources, with a mix of clogging up server bandwidth, and a sprinkle of N+1 scaling problem. Manager lets everyone go home, but be back in the office at 8:00AM to develop a plan so this *never* happens again.
About 2 months later, a 'real' development+integration environment (previously, any+all integration tests were on the developer's machine) and the team scheduled a 6:00AM deployment, but at a much, much smaller scale with just the 3 development team members.
Why? Because the manager 'froze' changes to the ASPX service, the web team still needed various enhancements, so they bypassed the service (not using the ASPX service at all) and wrote their own SQL scripts that hit the database directly and utilized AppFabric/Velocity caching to allow the site to scale. There were only a couple client application using the ASPX service that needed to be converted, so deploying at 6:00AM gave everyone a couple of hours before users got into the office. Service deployed, worked like a champ.
A week later the VP schedules a celebration for the successful migration to WCF. Pizza, cake, the works. The 3 team members received awards (and a envelope, which probably equaled some $$$) and the entire team received a custom Benchmade pocket knife to remember this project's success. Myself and several others just stared at each other, not knowing what to say.
Later, my manager pulls several of us into a conference room
Me: "What the hell? This is one of the biggest failures I've been apart of. We got rewarded for thousands and thousands of dollars of wasted time."
<others expressed the same and expletive sediments>
Mgr: "I know..I know...but that's the story we have to stick with. If the company realizes what a fucking mess this is, we could all be fired."
Me: "What?!! All of us?!"
Mgr: "Well, shit rolls downhill. Dept-Mgr-John is ready to fire anyone he felt could make him look bad, which is why I pulled you guys in here. The other sheep out there will go along with anything he says and more than happy to throw you under the bus. Keep your head down until this blows over. Say nothing."11 -
Ladies and gentlemen, prepare yourselves for a rant with a capital R, this is gonna be a long one.
Our story begins well over a year ago while I was still in university and things such as "professionalism" and "doing your job" are suggestions and not something you do to not get fired. We had multiple courses with large group projects that semester and the amount of reliable people I knew that weren't behind a year and in different courses was getting dangerously low. There were three of us who are friends (the other two henceforth known as Ms Reliable and the Enabler) and these projects were for five people minimum. The Enabler knew a couple of people who we could include, so we trusted her and we let them onto the multiple projects we had.
Oh boy, what a mistake that was. They were friends, a guy and a girl. The girl was a good dev, not someone I'd want to interact with out of work but she was fine, and a literal angel compared to the guy. Holy shit this guy. This guy, henceforth referred to as Mr DDTW, is a motherfucking embarrassment to devs everywhere. Lazy. Arrogant. Standards so low they're six feet under. Just to show you the sheer depth of this man's lack of fucks given, he would later reveal that he picked his thesis topic "because it's easy and I don't want to work too hard". I haven't even gotten into the meat of the rant yet and this dude is already raising my blood pressure.
I'll be focusing on one project in particular, a flying vehicle simulator, as this was the one that I was the most involved in and also the one where shit hit the fan hardest. It was a relatively simple-in-concept development project, but the workload was far too much for one person, meaning that we had to apply some rudimentary project management and coordination skills that we had learned to keep the project on track. I quickly became the de-facto PM as I had the best grasp on the project and was doing a lot of the heavy lifting.
The first incident happened while developing a navigation feature. Another teammate had done the basics, all he had to do was use the already-defined interfaces to check where the best place to land would be, taking into account if we had enough power to do so. Mr DDTW's code:
-Wasn't actually an algorithm, just 90 lines of if statements sandwiched between the other teammate's code.
-The if statements were so long that I had to horizontal scroll to see the end, approx 200 characters long per line.
-Could've probably been 20 normal-length lines MAX if he knew what a fucking for loop was.
-Checked about a third of the tiles that it should have because, once again, it's a series of concatenated if statements instead of an actual goddamn algorithm.
-IT DIDN'T FUCKING WORK!
My response was along the lines of "what the fuck is this?". This dipshit is in his final year and I've seen people write better code in their second semester. The rest of the team, his friend included, agreed that this was bad code and that it should be redone properly. The plan was for Mr DDTW to move his code into a new function and then fix it in another branch. Then we could merge it back when it was done. Well, he kept on saying it was done but:
-It still wasn't an algorithm.
-It was still 90 lines.
-They were still 200 characters wide.
-It still only checked a third of the tiles.
-IT STILL DIDN'T FUCKING WORK!
He also had one more task, an infinite loop detection system. He watched while Ms Reliable did the fucking work.
We hit our first of two deadlines successfully. We still didn't have a decent landing function but everything else was nice and polished, and we got graded incredibly well. The other projects had been going alright although the same issue of him not doing shit applied. Ms Reliable and I, seeing the shitstorm that would come if this dude didn't get his act together, lodged a complaint with the professor as a precautionary measure. Little did I know how much that advanced warning would save my ass later on.
Second sprint begins and I'm voted in as the actual PM this time. We have four main tasks, so we assign one person to each and me as a generalist who would take care of the minor tasks as well as help out whoever needed it. This ended up being a lot of reworking and re-abstracting, a lot of helping and, for reasons that nobody ever could have predicted, one of the main tasks.
These main tasks were new features that would need to be integrated, most of which had at least some mutual dependencies. Part of this project involved running our code, which would connect to the professor's test server and solve a server-side navigation problem. The more of these we solved, the better the grade, so understandably we needed an MVP to see if our shit worked on the basic problems and then fix whatever was causing the more advanced ones to fail. We decided to set an internal deadline for this MVP. Guess who didn't reach it?
Hitting the character limit, expect part 2 SOON7 -
Indian web dev companies suck ( for developers )
when I finished 3 year grad program in computer application here in my country (India), I thought life's gonna be fun working as a developer. Oh boy, I was so wrong.
I started out working for a small service based IT company, followed by 2 more. I realized really quickly that they're nothing short of a scam. If your company's only agenda to somehow survive in the market and showing no signs of growth in 8 fucking years, then I'm sorry you're working for scamsters.
Now I'm not saying that all of them are alike. But most of them sorta are.
They don't give a shit about quality, not one bit. Quality means no money in the short run. And they haven't been able to develop any strategy to deal with that. Hence, no growth.
They promise 100 things on their website but only provide shitty services in 10.
There is no pair programming, no code review, no code quality check, no architect, no database designer. They won't give you extra time to write test cases. They use git as a storage device.
They don't put their developers (especially the ones who are learning) under any sort of managed development framework to ensure smooth work.
At the end of the day, their main objective is to somehow NOT deliver a project but finish a milestone and make money out of it.
After cashing out for a milestone, they want you to put your current project on hold and start working on a new project until you have like 10-15 projects in the pipeline and you're severely overwhelmed and you just wanna fucking QUIT.
They would say YES to literally every fucking thing, only to disappoint the client later.
I can't believe someone in the US, or UK thought it'd be a good idea to approach these companies
for their brand new app ideas. They're so fucked.
They're rarely finishing any project.
I'm sorry if I hurt your feelings. I had to get it out of my system.11 -
Just need to get this off my chest. Started a new job 3 weeks ago at a company that has been around ~18 years, it is only recently that they have started to grow more rapidly. I was brought in under the guise that they wanted to embrace change and better practices and so said I was up for the challenge.
In my 2nd week I was asked to produce a document on tackling the technical debt and an approach to software development in the future for 3 consultants who were coming in to review the development practices of the company on behalf of the private equity firm who has taken a major stake in the company. I wrote the document trying to be factual about the current state and where I wanted to go, key points being:
Currently a tightly coupled monolith with little separation of concerns (73 projects in one solution but you have to build two other solutions to get it to build because there are direct references.).
Little to no adherence to SOLID principles.
No automated testing whatsoever.
Libraries all directly referenced using the file system rather than Nuget.
I set out a plan which said we needed to introduce TDD, breaking dependencies, splitting libraries into separate projects with nuget packages. Start adhering to SOLID principles, looking at breaking the project down into smaller services using the strangler pattern etc. After submitting what I had written to be part of a larger document I was told that it had been tweaked as they felt it was too negative. I asked to see the master document and it turns out they had completely excluded it.
I’ve had open and frank discussions with the dev team who to me have espoused that previously they have tried to do better, tackle technical debt etc but have struggled to get management to allow them. All in all a fairly poor culture. They seem almost resigned to their fate.
In my first 2 weeks I was told to get myself acquainted and to settle myself in. I started looking at the code and was quite shocked at how poorly written a lot of it was and in discussions with my manager have been critical of the code base and quite passionate and opinionated about the changes I want to see.
Then on Friday, the end of my third week, I was invited to a meeting for a catch up. The first thing I was told was that they felt I was being too openly critical in the office and whether I was a good fit for the company, essentially a stay or go ultimatum. I’ve asked for the weekend to think about it.
I’ve been a little rocked by it being so quickly asked if I was a good fit for the company and it got my back up. I told them that I was a good fit but for me to stay I want to see a commitment to changes, they told me that they had commitments to deliver new features and that we might be able to do it at some point in the future but for now I just needed to crack on.
Ordinarily I would just walk but I’ve recently started the process to adopt kids and changing jobs right now would blow that out the water. At the same time I’m passionate about what I do and having a high standards, I’m not going to be silenced for being critical but maybe I will try and tackle it in a different way. I think my biggest issue is that my boss who was previously a Senior Developer (my current position) has worked at the company for 12 years and it is his only job, so when I’m being critical it’s most likely criticising code he wrote. I find it hard to have the respect of a boss who I had to teach what a unit test was and how to write one. It makes it hard to preach good standards when by all accounts they don’t see the problems.
Just wondering if anyone has suggestions or experience that might help me tackle this situation?12 -
Rant!
Been working on 'MVP' features of a new product for the past 14 months. Customer has no f**king clue on how to design for performance. An uncomfortable amount of faith was placed on the ORM (ORMs are not bad as long as you know what you are doing) and the magic that the current framework provides. (Again, magic is good so long as you understand what happens behind the smoke and mirrors - but f**k all that... coz hey, productivity, right?). Customer was so focussed on features that no one ever thought of giving any attention to subtler things like 'hey, my transaction is doing a gazillion joins across trizillion tables while making a million calls to the db - maybe I should put more f**king thought into my design.' We foresaw performance and concurrency issues and raised them way ahead of the release. How did the customer respond? By hiring a performance tester. Fair enough - but what did that translate into? Nothing. Nada. Zilch. Hiring a perf tester doesn't automagically fix issues. The perf tester did not have a stable environment, a stable build or anything that is required to do a test with meaningful results. As the release date approached, the customer launched a pilot and things started failing spectacularly with the system not able to support more than 15 concurrent users. WTF! (My 'I told you so' moment) Emails started flying in all directions and the hunt for the scapegoat was on (I'm a sucker for CYA so I was covered). People started pointing in all directions but no one bothered to take a step back and understand what was causing the issues. Numero uno reason for transaction failure was deadlocks. We were using a proprietary DB with kickass tooling. No one bothered to use the tooling to understand what was the resource in contention let alone how to fix the contention. Absolute panic - its like they just froze. Debugging shit and doing the same thing again and again just so that management knew they were upto something. Most of the indexes had a fragmentation of 99.8% - I shit you not. Anywho, we now have a 'war room' where the perf tester needs to script the entire project by tonight and come up with some numbers that will amount to nothing while we stay up and keep profiling the shit out of the application under load.
Lessons learnt - When you foresee a problem make a LOT of noise to get people to act upon it and not wait till it comes back and bites you in the ass. Better yet, try not to get into a team where people can't understand the implications of shitty design choices. War room my ass!3 -
So I am finally plunging into continuous integration. If I make one more deploy script mistake, I've lost enough time to merit having learned a better solution than bash scripting calling git and rhc and py files I wrote. I have failing tests that are failing because they weren't updated after the million and a half urgent changes in the past 2 months, so it's time to act like I am a TDD fanatic and write the tests correctly. So much work. All from me listening to the constant req changes, listening to the urgency, letting non-devs get under my skin if you will. I'm optimistic in all the wrong places - I think I can write that by end of day let's try it. I'm lazy in the wrong places - I think that I can write that test later, because all I changed was XYZ (which took all night but I said I'd get it as close as possible didn't I?). And I think these handful of bash scripts are good enough to make sure I run tests? But remember, I didn't write the tests or I didn't go back and update them. Or the tests that fail, I'm too lazy. And so much of the tests, I would need to use, idk selenium for, and damnit if I really don't want to dig for element IDs to wait for every time I need an AJAX call.
Okay wow, I really did rant here. And discredited myself a bit lol I need to ignore the wrong lazy and embrace the right lazy. Protect myself from myself and from contributors. It really is, up to me now, to rescue myself from my bad habits. Bad habits perpetuated by clients urgency every day, to change things, that should have been finalized in November if we wanted a stable flipping system in January. It feels like the blind (client) leading the blind (me, when I do dumb shit like rush features out the door half tested).
Anyway all this came out, because I have been reading about continuous integration and stumbled upon this quote. And thought someone might laugh at the anachronism like I did2 -
This is the third part of my ongoing series "The Ballad of the Six Witchers and the Undocumented Java Tool".
In this part, we have the massive Battle of Sparks and Storms.
The first part is here: https://devrant.com/rants/5009817/...
The second part is here: https://devrant.com/rants/5054467/...
Over the last couple sprints and then some, The Witcher Who Writes and the Butchers of Jarfile had studied the decompiled guts of the Undocumented Java Beast and finally derived (most of) the process by which the data was transformed. They even built a model to replicate the results in small scale.
But when such process was presented to the Priests of Accounting at the Temple of Cash-Flow, chaos ensued.
This cannot be! - cried the priests - You must be wrong!
Wrong, the Witchers were not. In every single test case the Priests of Accounting threw at the Witchers, their model predicted perfectly what would be registered by the Undocumented Java Tool at the very end.
It was not the Witchers. The process was corrupted at its essence.
The Witchers reconvened at their fortress of Sprint. In the dark room of Standup, the leader of their order, wise beyond his years (and there were plenty of those), in a deep and solemn voice, there declared:
"Guys, we must not fuck this up." (actual quote)
For the leader of the witchers had just returned from a war council at the capitol of the province. There, heading a table boarding the Archpriest of Accounting, the Augur of Economics, the Marketing Spymaster and Admiral of the Fleet, was the Ciefoh Seat himself.
They had heard rumors about the Order of the Witchers' battles and operations. They wanted to know more.
It was quiet that night in the flat and cloudy plains of Cluster of Sparks and Storms. The Ciefoh Seat had ordered the thunder to stay silent, so that the forces of whole cluster would be available for the Witchers.
The cluster had solid ground for Hive and Parquet turf, and extended from the Connection River to farther than the horizon.
The Witcher Who Writes, seated high atop his war-elephant, looked at the massive battle formations behind.
The frontline were all war-elephants of Hadoop, their mahouts the Witchers themselves.
For the right flank, the Red Port of Redis had sent their best connectors - currency conversions would happen by the hundreds, instantly and always updated.
The left flank had the first and second army of Coroutine Jugglers, trained by the Witchers. Their swift catapults would be able to move data to and from the JIRA cities. No data point will be left behind.
At the center were thousands of Sparks mounting their RDD warhorses. Organized in formations designed by the Witchers and the Priestesses of Accounting, those armoured and strong units were native to this cloudy landscape. This was their home, and they were ready to defend it.
For the enemy could be seen in the horizon.
There were terabytes of data crossing the Stony Event Bridge. Hundreds of millions of datapoints, eager to flood the memory of every system and devour the processing time of every node on sight.
For the Ciefoh Seat, in his fury about the wrong calculations of the processes of the past, had ruled that the Witchers would not simply reshape the data from now on.
The Witchers were to process the entire historical ledger of transactions. And be done before the end of the month.
The metrics rumbled under the weight of terabytes of data crossing the Event Bridge. With fire in their eyes, the war-elephants in the frontline advanced.
Hundreds of data points would be impaled by their tusks and trampled by their feet, pressed into the parquet and hive grounds. But hundreds more would take their place. There were too many data points for the Hadoop war-elephants alone.
But the dawn will come.
When the night seemed darker, the Witchers heard a thunder, and the skies turned red. The Sparks were on the move.
Riding into the parquet and hive turf, impaling scores of data points with their long SIMD lances and chopping data off with their Scala swords, the Sparks burned through the enemy like fire.
The second line of the sparks would pick data off to be sent by the Coroutine Jugglers to JIRA. That would provoke even more data to cross the Event Bridge, but the third line of Sparks were ready for it - those data would be pierced by the rounds provided by the Red Port of Redis, and sent back to JIRA - for good.
They fought for six days and six nights, taking turns so that the battles would not stop. And then, silence. The day was won, all the data crushed into hive and parquet.
Short-lived was the relief. The Witchers knew that the enemy in combat is but a shadow of the troubles that approach. Politics and greed and grudge are all next in line. Are the Witchers heroes or marauders? The aftermath is to come, and I will keep you posted.4 -
# Retrospective as Backend engineer
Once upon a time, I was rejected by a startup who tries to snag me from another company that I was working with.
They are looking for Senior / Supervisor level backend engineer and my profile looks like a fit for them.
So they contacted me, arranged a technical test, system design test, and interview with their lead backend engineer who also happens to be co-founder of the startup.
## The Interview
As usual, they asked me what are my contribution to previous workplace.
I answered them with achievements that I think are the best for each company that I worked with, and how to technologically achieve them.
One of it includes designing and implementing a `CQRS+ES` system in the backend.
With complete capability of what I `brag` as `Time Machine` through replaying event.
## The Rejection
And of course I was rejected by the startup, maybe specifically by the co-founder. As I asked around on the reason of rejection from an insider.
They insisted I am a guy who overengineer thing that are not needed, by doing `CQRS+ES`, and only suitable for RND, non-production stuffs.
Nobody needs that kind of `Time Machine`.
## Ironically
After switching jobs (to another company), becoming fullstack developer, learning about react and redux.
I can reflect back on this past experience and say this:
The same company that says `CQRS+ES` is an over engineering, also uses `React+Redux`.
Never did they realize the concept behind `React+Redux` is very similar to `CQRS+ES`.
- Separation of concern
- CQRS: `Command` is separated from `Query`
- Redux: Side effect / `Action` in `Thunk` separated from the presentation
- Managing State of Application
- ES: Through sequence of `Event` produced by `Command`
- Redux: Through action data produced / dispatched by `Action`
- Replayability
- ES: Through replaying `Event` into the `Applier`
- Redux: Through replay `Action` which trigger dispatch to `Reducer`
---
The same company that says `CQRS` is an over engineering also uses `ElasticSearch+MySQL`.
Never did they realize they are separating `WRITE` database into `MySQL` as their `Single Source Of Truth`, and `READ` database into `ElasticSearch` is also inline with `CQRS` principle.
## Value as Backend Engineer
It's a sad days as Backend Engineer these days. At least in the country I live in.
Seems like being a backend engineer is often under-appreciated.
Company (or people) seems to think of backend engineer is the guy who ONLY makes `CRUD` API endpoint to database.
- I've heard from Fullstack engineer who comes from React background complains about Backend engineers have it easy by only doing CRUD without having to worry about application.
- The same guy fails when given task in Backend to make a simple round-robin ticketing system.
- I've seen company who only hires Fullstack engineer with strong Frontend experience, fails to have basic understanding of how SQL Transaction and Connection Pool works.
- I've seen company Fullstack engineer relies on ORM to do super complex query instead of writing proper SQL, and prefer to translate SQL into ORM query language.
- I've seen company Fullstack engineer with strong React background brags about Uncle Bob clean code but fail to know on how to do basic dependency injection.
- I've heard company who made webapp criticize my way of handling `session` through http secure cookie. Saying it's a bad practice and better to use local storage. Despite my argument of `secure` in the cookie and ability to control cookie via backend.18 -
Dependency hell is the largest problem in Linux.
On Windows, I just download an executeable (.exe) file, and it just works like a charm! But Linux sometimes needs me to install dependencies.
At one point, I nearly broke my operating system while trying to solve dependencies. I noticed that some existing applications refused to start due to some GLIBC error gore. I thought to myself "that thing ain't gonna boot the next time", so I had to restore the /usr/lib/x86_64-linux-gnu/ folder from a backup.
And then there is a new level of lunacy called "conflicting dependencies". I never had such an error on Windows. But when I wanted to try out both vsftpd and proFTPd on Linux, I get this error, whereas on Windows, I simply download an .exe file and it WORKS! Even on Android OS, I simply install an APK file of Amaze File Manager or Primitive FTPd or both and it WORKS! Both in under a minute. But on Linux, I get this crap. Sure, Linux has many benefits, but if one can't simply install a program without encountering cryptic errors that take half a day to troubleshoot and could cause new whack-a-mole-style errors, Linux's poor market share is no surprise.
Someone asked "Why not create portable applications" on Unix/Linux StackExchange. Portable applications can not just be copied on flash drives and to other computers, but allow easily installing multiple versions on a system. A web developer might do so to test compatibility with older browsers. Here is an answer to that question:
> The major argument [for shared libraries] is security, that if there is a vulnerability in a commonly-used library, then only that library has to be updated […] you don't have to have 4 different versions of a library installed
I just want my software to work! Period. I don't mind having multiple versions of libraries, I simply want it to WORK! To hell with "good reasons" for why it doesn't, and then being surprised why Linux has a poor market share. Want to boost Linux market share? SOLVE THIS DAMN ISSUE!.
Understand that the average computer user wants stuff to work out of the box, like it does in Windows.52 -
Can someone relate to it? We have a very simple process:
1. Create a ticket 🎫
2. Specify the requirement 📑
3. Assign the ticket to a developer 👨🦰👩🦰
4. Optional: make a meeting with the developer and go throw the specification if it is a complex feature 🗓️
Under pressure it looks like this:
Someone tells you to implement the request as fast a possible, no written specification, in best case you get a brief email 📧 also the feature has to be available asap in production and they is only poorly tested...
Or they want to test in production because the data in test system is "missing" ⛔☢️☣️
It is so annoying that is so difficult to stick to such a simple process 😭 it really freaks me out 😒😫12 -
In last episode of "How SystemD screwed me over", we talked about Systemd's PrivateTMP and how it stopped me from generating SSL certificates.
In today's episode - SystemD vs CGroups!
Mister Pottering and his team apparently felt that CGroups are underused (As they can be quite difficult to set up), and so decided to integrate them into SystemD by default. As well as to provide a friendlier interface to control their values.
One can read about these interactions in the manual page "systemd.resource-control"
All is cool so far. So what happened to me today?
Imagine you did a major system release upgrade of a production server, previously tested on a standalone server. This upgrade doesn't only upgrade the distribution however, it also includes the switch from SysVInit to SystemD. Still, everything went smooth before, nothing to worry now then, right? Wrong.
The test server was never properly stress-tested. This would prove to be an issue.
When the upgrade finishes, it is 4 AM. I am happy to go to bed at last. At 6 AM, however, I am woken up again as the server's webservices are unavailable, and the machine is under 100% CPU load. Weird, I check htop and see that Apache now eats up all 32 virtual cores. So I restart it, casting it off to some weird bug or something as the load returns to normal.
2 hours later, however, the same situation occurs. This time, I scour all the logs I can, and find something weird - Many mentions that Apache couldn't create a worker thread? That's weird.
Several hours of research and tinkering later, I found out the following:
1 - By default, all processes of a system that runs SystemD are part of several CGroups. One of these CGroups is the PID CGroup, meant to stop a runaway process from exhausting all PIDs/TIDs of a system.
This limit is, by default, set to a certain amount of the total available PIDs. If a process exhausts this limit, it can no longer perform operations like fork().
So now, I know the how and why, but how should I solve this? The sanest option would be to get a rough estimate of just how many threads the Apache webserver might need. This option, though, is harder, than apparent. I cannot just take the MaxRequestsWorkers number... The instance has roughly double the amount of threads already. The cause being, as I found out, the HTTP/2 module, which spawns additional threads that do not count towards this limit. So I have no idea what limit to set.
Or I could... Disable the limit for just the webserver via the TasksAccounting switch. I thought this would work. And it did seem to... Until I ran out of TIDs again - Although systemctl status apache2.service no longer reported the number of tasks or a task limit of the process, the PID CGroup stayed set to the previous limit. Later I found out that I can only really disable the Task Accounting for all the units of a given slice and its parents.
This, though, systemctl somewhat didn't make apparent (And I skimmed the manual, that part was my fault)
So... The only remaining option I had was to... Just set the limit to infinite. And that worked, at last.
It took me several hours to debug this issue. And I once again feel like uninstalling systemd again, in favor of sysvinit.
What did I learn? RTFM, carefully, everything is important, it is not enough to read *half* the paragraph of a given configuration option...
Oh, and apache + http/2 = huge TID sink. -
I am so close to crying it is just not funny, every time i close my eyes I picture Superman's Scream after snapping Zod's neck in man of steel i.e. filled with pain, anguish and not being able to accept what you have become... I am not a dev but I have been glued to a computer screen since 7 years old.
I work for a company as the I.T. Administrator that does quite a bit of specialized work in the regulatory industry and has there own in-house software. This was built by one developer after another, hired straight out of university/college and you cannot believe how big of a monster this became being built with direction from someone who cant code and a bunch of "drunk children" who do not know good principles (swear to god thousands of lines with no comments and no OOP)
Now I am validating and testing a system, i keep being asked if we will be ready by the end of the week and due to my lack of qualifications after dropping out of school I keep thinking yes, but every time i test something I find another problem, I may not be able to code but understanding quickly is my strength and I know this shit is not simple.
I am under constant pressure to deliver something quickly.
Any concerns I raise are almost brushed off because I am an idiot with no qualifications who should be greatful for the work I am doing and the low as balls salary
The problems I solve are commended by the 10+ years of experience senior developer writing the application for us, yet I get shit for taking an hour to find the problem that existed in our network setup because it is the devs job (OMFG HE WOULD NEVER HAVE REALIZED WITHOUT COMING HERE AND LOOKING AT OUR INFRASTRUCTURE... WE WOULD HAVE BEEN STUCK FOR A FUCKING MONTH!!!!)
I see only 2 courses ahead for my life. The easy way and the hard way.
Easy way, buy a gun and end it all.
Suffer for 3 more years in the place that is causing constant breathing difficulty and the occasional pain in my left arm, finish my matric, continue learning to code and leave.
But right now I just want cry scream like Superman!!!6 -
rent / question (there is a question at the end and I'd appreciate your opinion)
8 months ago, I agreed to help a not too distant relative of mine to do his master thesis at the company where I work. He was supposed to build something really MVP, but useful for us and I'd help him get some scientific questions out of it, and provide him with (computing) resources to test his theories / implementations under simulated and much heavier load.
Since then, he didn't get done anything even remotely useful, always just stuck on very rudimentary issues, claimed things are almost ready, I wrote a quick smoke test to prove that the whole application blows up when you touch it, in short - a disaster and went over to radio silence.
In the meanwhile, we didn't need it anymore, so 1.5 months ago, I got in touch with him again, with an even more technical proposal, something, at least I'd think, that's even cooler to do. He asked me some question about hypothetical load, the system should be able to handle eventually, to come up with alternative implementations to compare them against each other. He said that his exam period is going to be over soon and he'll get back to me with some initial version.
2 weeks ago, I got back in touch with him, trying to urge him, to get finally started and get something done. If he'd actually sit down and do it during the holidays as a "full time job", he'd be probably done in 2 weeks. Last week, he came back to me and said he has an initial PR ready to review.
I was excited about it, but basically froze when I realized what he did. He deleted all his previous work - some infrastructure stuff which took us basically 3 months of back and forth to get running - and as far as I could see, all the new code were only auto generated clients based on a swagger specification. In short - I could do it in less then an hour. If you really have no idea what you're doing, it might take you half a day, but definitely nowhere near to a week.
His brother, which a good friend of mine, thinks I'm being too hard on him. His argument was, that it's too hard, and he has to do it in C#, but he only knows Java (I gave him access to some of our repositories to copy paste code together, he didn't need to invent anything. I also prefer C# but wrote my master thesis in Java) Personally, I'm just pissed because he promises stuff that he never does. I totally understand him - I was like that as a student as well, I guess karma is a ... but still, he's wasting my time.
Right now I'm thinking how to get out of this, without having even more time wasted. I doubt he'd ever deliver anything useful. He got plenty of input from me about what he could consider for his scientific question, how to measure performance, ... He can keep his credentials to access our test environment with the test data, but I won't give him access to any additional computing resources, to compare how his solutions might scale on our company's cost. (mainly it's not the money, but I'd have to provide that stuff, and probably help him set it up)
does it sound like a fair deal (saying, I'm done with you. You can finish your topic on your own, but don't expect any help from me)? or am I being a dick about it and too demanding?1 -
Hello, my first time here. I got to know this website/app from my PM because I need to vent it somewhere other than him according to my PM.
So, here goes my first rant. The date is today (Monday). The rant subject is our new tester. Some context on the guy. He started in our office 8 weeks ago and his title is senior tester with some years in testing. Me and my team with the exception of our PM are new hires and for me, this is my first job after graduation.
After a grueling month of pushing for new modules and bug fixes from our monthly UAT from the client (yes, this will be a future rant one day), about 2/3 of the team is on vacation paired with a long weekend. So, a very few ppl in the team including me and my PM came for today.
I usually came quite early, around 8 am as I commute with public transportation. As soon as I have my breakfast and just getting ready to open my dev laptop, he came to me with a bug. This is like under an hour I came to office. I'm ok with anything related to the project as today was deployment day to test server for our monthly UAT. So, I check the bug and it wasn't my module but the PIC is not there and I familiar with the code thus I fixing the module.
Then, not even 15 mins later, while fixing this module, he came to me with another bug. I'm still the only one who in office that can fix it thus have to do it too. Finished the both bugs, pushed and je retested it. Fortunately, my PM and another colleague came. But, for some reason, he only comes to me for the bug fixes.
The annoying thing for me is that he comes to me every time he found an obstacle, bug or glitch. At this rate, by hourly. Thus, this cycle of impromptu going around fixing-on-the-go for the project begins, for me. Then, my PM asks him abt our past issue log given by the client UAT. Another annoying part is he never checks the clients feedback to see if the result can be produced again. The time he checks it is when ppl ask abt it and test it 1 by 1. Then he came to me again with why x person marked it as done. Like hell I know why they marked it done, you the one who need to check with them. Thus, I called/messaged the PIC for x modules abt the issue and then they explain it. I have to explain it again to him abt it and then he makes the summary report for the feedback. This goes until lunch.
I thought the bug fixes is over and I can deploy it after lunch. I thought wrong and I kinda regret coming back early from lunch which I thought I can rest for a while with the debacle over morning. Nope, straight he comes to me after I sit down for 10 mins and until almost work hour is done, he came to me with small bugs and issues like previously, hourly. By then I think I crushed like ~10 bugs/issues and I'm knackered. I complained to the PM many times and the PM also said to him many times but he still does it again and again. Even the PM also ranted to me abt his behavior. The attitude of not compiling an issue log for the day and not testing the system to verify what the client feedbacks are valid or not is grinding my gears more and more. Not hating the guy even though his personality is quite unique but this is totally grinding ppl's gears atm. As of now, it's midnight and I finally deployed the system to the testing server. This totally drains my mental health and it's just Monday. May god have mercy on me.
Owh, the other colleague that come today? He was doing pretty much the same thing but he was resolving a major issue which is why the tester came to me.2 -
[TestClass]
public class DayTest
{
[TestMethod]
public void Init_WowEnthusiasmPlusMeeting_fml()
{
// Arrange
Day monday = new Day(
Math.Ceiling(Chrizzle.Mojo),
(List<Task>)Board.GetStories()
);
int startingTaskCount = monday.Tasks.Count();
monday.AddMeeting(new Meeting(duration: 7.5));
// Act
monday.Init();
// Assert fml
Assert.IsTrue(
monday.Tasks.Count() ==
startingTaskCount &&
Chrizzle.Mojo == 0
);
}
}
// Unreachable code detected -
#Suphle Rant 7: transphporm failure
In this issue, I'll be sharing observations about 3 topics.
First and most significant is that the brilliant SSR templating library I've eyed for so many years, even integrated as Suphle's presentation layer adapter, is virtually not functional. It only works for the trivial use case of outputting the value of a property in the dataset. For instance, when validation fails, preventing execution from reaching the controller, parsing fails without signifying what ordinance was being violated. I trim the stylesheet and it only works when outputting one of the values added by the validation handler. Meaning the missing keys it can't find from controller result is the culprit.
Even when I trimmed everything else for it to pass, the closing `</li>` tag seems to have been abducted.
I mail project owner explaining what I need his library for, no response. Chat one of the maintainers on Twitter, nothing. Since they have no forum, I find their Gitter chatroom, tag them and post my questions. Nothing. The only semblance of a documentation they have is the Github wiki. So, support is practically dead. Project last commit: 2020. It's disappointing that this is how my journey with them ends. There isn't even an alternative that shares the same philosophy. It's so sad to see how everybody is comfortable with PHP templating syntax and back end logic entagled within their markup.
Among all other templating libraries, Blade (which influenced my strong distaste for interspersing markup and PHP), seems to be the most popular. First admission: We're headed back to the Blade trenches, sadly.
2nd Topic: While writing tests yesterday, I had this weird feeling about something being off. I guess that's what code smell is. I was uncomfortable with the excessive amount of mocking wrappers I had to layer upon SUT before I can observe whether the HTML adapter receives expected markup file, when I can simply put a `var_dump` there. There's a black-box test for verifying the output but since the Transphporm headaches were causing it to fail, I tried going white-box. The mocking fixture was such a monstrosity, I imagined Sebastian Bergmann's ghost looking down in abhorrence over how much this Degenerate is perverting and butchering his creation.
I ultimately deleted the test travesty but it gave rise to the question of how properly designed system really is. Or, are certain things beyond testing white box? Are there still gaps in the testing knowledge of a supposed testing connoisseur? 2nd admission.
Lastly, randomly wanted to tweet an idea at Tomas Votruba. Visited his profile, only to see this https://twitter.com/PovilasKorop/.... Apparently, Laravel have implemented yet another feature previously only existing in Suphle (or at the libraries Arkitekt and Deptrac). I laughed mirthlessly as I watch them gain feature-parity under my nose, when Suphle is yet to be launched. I refuse to believe they're actually stalking Suphle3