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Search - "load balancing"
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Oh, man, I just realized I haven't ranted one of my best stories on here!
So, here goes!
A few years back the company I work for was contacted by an older client regarding a new project.
The guy was now pitching to build the website for the Parliament of another country (not gonna name it, NDAs and stuff), and was planning on outsourcing the development, as he had no team and he was only aiming on taking care of the client service/project management side of the project.
Out of principle (and also to preserve our mental integrity), we have purposely avoided working with government bodies of any kind, in any country, but he was a friend of our CEO and pleaded until we singed on board.
Now, the project itself was way bigger than we expected, as the wanted more of an internal CRM, centralized document archive, event management, internal planning, multiple interfaced, role based access restricted monster of an administration interface, complete with regular user website, also packed with all kind of features, dashboards and so on.
Long story short, a lot bigger than what we were expecting based on the initial brief.
The development period was hell. New features were coming in on a weekly basis. Already implemented functionality was constantly being changed or redefined. No requests we ever made about clarifications and/or materials or information were ever answered on time.
They also somehow bullied the guy that brought us the project into also including the data migration from the old website into the new one we were building and we somehow ended up having to extract meaningful, formatted, sanitized content parsing static HTML files and connecting them to download-able files (almost every page in the old website had files available to download) we needed to also include in a sane way.
Now, don't think the files were simple URL paths we can trace to a folder/file path, oh no!!! The links were some form of hash combination that had to be exploded and tested against some king of database relationship tables that only had hashed indexes relating to other tables, that also only had hashed indexes relating to some other tables that kept a database of the website pages HTML file naming. So what we had to do is identify the files based on a combination of hashed indexes and re-hashed HTML file names that in the end would give us a filename for a real file that we had to then search for inside a list of over 20 folders not related to one another.
So we did this. Created a script that processed the hell out of over 10000 HTML files, database entries and files and re-indexed and re-named all this shit into a meaningful database of sane data and well organized files.
So, with this we were nearing the finish line for the project, which by now exceeded the estimated time by over to times.
We test everything, retest it all again for good measure, pack everything up for deployment, simulate on a staging environment, give the final client access to the staging version, get them to accept that all requirements are met, finish writing the documentation for the codebase, write detailed deployment procedure, include some automation and testing tools also for good measure, recommend production setup, hardware specs, software versions, server side optimization like caching, load balancing and all that we could think would ever be useful, all with more documentation and instructions.
As the project was built on PHP/MySQL (as requested), we recommended a Linux environment for production. Oh, I forgot to tell you that over the development period they kept asking us to also include steps for Windows procedures along with our regular documentation. Was a bit strange, but we added it in there just so we can finish and close the damn project.
So, we send them all the above and go get drunk as fuck in celebration of getting rid of them once and for all...
Next day: hung over, I get to the office, open my laptop and see on new email. I only had the one new mail, so I open it to see what it's about.
Lo and behold! The fuckers over in the other country that called themselves "IT guys", and were the ones making all the changes and additions to our requirements, were not capable enough to follow step by step instructions in order to deploy the project on their servers!!!
[Continues in the comments]26 -
Worst interview is the one that actually got me where I am today.
Its been 15 years ago, but I remember very well. Since it was a startup back then they didn't really have any job titles yet or what so ever. I applied for the role of network engineer, heck I didn't care I needed a paycheck.
5 minutes into the interview the smalltalk left the room and they started asking me questions, mainly about me as a person. Eventually it was my turn. After my first question I facepalmed so hard.. Do you guys have any SLA or documentation around here? Heard of ITIL? How is your load balancing?
They stared at me as if I was some kind of alien that had just invaded their little safe planet.. it was hilarious.
An hour later they called me to come back in and sign a contract.. from there on I kind of multi tasked my way around the first year.. bit of network support & design, customer support, sending and packaging orders after 5PM.. god we had long but awesome days.. hence, we were just the 5 of us. Nowadays we've got 150 developers out of 1019 total staff currently.. We also improved interview questions and processes ;)7 -
The game 'Factorio' should be required gaming experience for all programmers. Best way I've ever seen to learn load balancing and how to break down complex operations into smaller, manageable operations.9
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Three days I'm not there, three bloody days and the 2nd sys admin has managed to:
Destroy the auto load balancing that I have scripted and implemented
Fuck up the backups to the cloud, and to a tape drive.
Overload a physical server (in pic, #1 and #2 are hypervisors). This is just one smaller site, I would hate to know what he has done elsewhere.
This is why I'm moving into dev.5 -
PORTFOLIO INFLATION
when every junior is writing algorithms, the next step up, the only way to keep up is writing apps. When every junior is writing apps, the next leg up is writing an entire SN.
Eventually junior full stack devs are writing microservice streaming cloud backend content delivery optimized social networks wrapped in virtualization with load balancing, proper CI, public accessible analytics apis, written in custom webaseembly compiled scripting backend utilizing both the latest graphql and every single feature of postgres, while also being a web site builder, an in browser app, mobile optimized, designed to transmogrify your asset pipelines linearflow functional-oriented modular rust cratified turbencabulator while cooking your turducken with CPU cycles, diffusing your gpt, and finetunning your llama 69 trillion parameter AI model to jerk you off all at the same time.
And then the title "wizard" becomes a reality as the void of meaning in our lives occupied by the anxiety of trying to reduce the fear of rejection in job hunting, is subsumed by the brief accidental glance into the cthulian madness-inducing yawning abyss of the future which is all the rest of our lives we have to endure existing for until at last sweet sweet death consumes us and we go to annihilation never having to configure one more framework or devops deploy of another virtual environment.
And it dawns on us that we no longer develop or write code at all. No, everything has become a "service" in this new hellscape future. We slowly come to the realization that every job is really just Costco greeter, or eventually going to be reduced to something equivalent, all human creativity, free will and emotions now taken care of by the automation while we manage the human aspects, like sardines pushing against one another not realizing their doom has been sealed along with the airless can they have been packed into, to be suffocated by circumstance and a system designed to reduce everything to a competition of metrics designed by the devil, if the metrics were misery", and "torture", while we ourselves are driven by this ratfuck wheel to turn endlessly toward social cannibalism, like rats eating their babies, but for the amusement of wallstreet corporate welfare whores who couldnt turn a dime if it wasnt already stolen.
And on our gravestones, those immortal words are carved, by the last person who gave up the ghost, the last whose soul wasnt yey shovelled onto the coal fires driving the content machine consuming the world:
Welcome to costco. I love you.12 -
Hi Lead Architect,
Oh? You want me to explain how database clustering works? I guess you're just testing me because I'm new and junior.
Oh, and also explain how load balancing works? And what a bastion host is?
What's the architectural intent of this project? Let's have a look at the documentation and diagrams you have been creating of your designs.
You don't have any? That's okay, you've only been leading the architect team on this project for a year now.
Why don't you just keeping asking the most junior dev on the team about how the fuck you are supposed to do your job. As if I know how to do your job when I have zero training and am just expected to know everything.
Oh, its 3pm and you're heading to the pub. That's cool, I'll just guess what I need to build.2 -
I was working on a thing at work which routes http requests from one endpoint and port to several local services.
I was halfway done when I noticed I just wrote a primitive reverse proxy.
Anyway, I'm calling it GRID, Gateway for REST Interface Distribution.
It's capable of dynamically attaching new routes and services and removing those during runtime via inbuilt typescript compilation service.
Each "runtime module" defines several routes which may have a middleware function (express.js style), which gets executed before forwarding the request to the local service.
I don't know why, but I'm kinda proud of this one; Feels like I made something actually useful for once.
Gonna maybe add a webUI with the monaco editor to write typescript modules without needing VSCode...
Also I may implement a load balancing system for scalability.
It comes with a cli too.
Gonna put it on github and post it here once I'm done with v1.19 -
TLDR: I need advice on reasonable salary expectations for sysadmin work in the rural United States.
I need some community advice. I’m the sysadmin at a small (35 employee) credit card processing company. I began as an intern and have now become their full time sysadmin/networking specialist. Since I was hired in January I have:
-migrated their 2007 Exchange server to Office 365
-Upgraded their ailing Windows server 2003 based architecture to 2012R2
-Licensed their unlicensed VMware ESXi servers (which they had already paid for license keys for!!!) and then upgraded them to 6.5 while preventing downtime on hosted VMs using tricky transfers and deployments (without vMotion!)
-Deployed a vCenter server to manage said ESXi servers easier
-Fixed a three month gap in their backups by implementing Veeam, and verifying its functionality
-Migrated a ‘no downtime’ fileserver to a new hypervisor host, implemented a ‘hot standby’ server as a backup kept up to date by the minute with DFS replication.
-Replaced failing hard drives in a RAID array underlying their one ‘business critical’ fileserver, which had no backups for 3 months at that time
-Reorganized Active Directory and Group Policy deployment from a nightmare spiderweb of OUs and duplicate policies
-Documented the entire old network and now the new one as I’ve been upgrading this
-Audited the developers AWS instances and removed redundant machines, optimized load balancing on front end Nginx servers, joined developer run Fedora workstations to the AD domain and implemented centralized syslog monitoring on them.
-Performed network scans and rewrote firewall exceptions to tighten security
There’s more, but you get the idea. I’ve now been tasked with taking point on an upcoming PCI audit which will be my first.
I’m being paid $16/hr US, with marginal health benefits. This is roughly $32,000 a year, before taxes.
I have two years previous work experience managing a third party Apple repair facility (SimplyMac) and every Apple certification for warranty repair and software troubleshooting. I have a two year degree in general sciences, with about 4 years of college credit (Two years of a physics education and two years of computer science after I switched focus) I’m actively pursuing a CCNA and MCSA server 2016 with exams paid for and scheduled.
I’m going into a salary negotiation in two months. What is a reasonable salary to request, from your perspective, for someone in my position?
Thanks in advance!6 -
Corona shows that certain webshops were bought up cheaply and can't handle large loads. The fact that my shopping cart constantly crashes, the website itself crashes, flips between logged in and logged out, state is constantly corrupted and.. every so now and then I get 500 server errors, yeah, clear signs of no load balancing policy.
Everyone is raping the shopping sites right now.
I hate cheapskates. -
Back home from vacations tomorrow.
It wasn't the best time I had but the thought of returning to daily life is already giving me a stomach ache.
Gotta take care of my little pug too, my anxiety about his partial eye keratosis isn't doing great too. Since the caretakers don't apply eye medication regularly.
There's this fear of my productivity before uni begins, I really don't want my vacation to end with me returning without completing my application.
I've still got a lot to do, anyone want to partner up with me ? I've still got load balancing and failover mechanisms which I have no real-time experience with (excluding api related stuff). I've got a general idea to use nginx. -
AWS Contractor
I've been putting a web application together that I'm looking to have published on AWS. Not having too much experience with AWS, I am looking to hire a contractor. I've had a number of quotes from different AWS admin's ranging from $40 an hour to $200 an hour, from 1-days worth of work to 2-months worth of work!
I'm not really sure what to make of it or to whom to trust. I believe they’re using my ignorance to overcharge me. I've listed my requirements below, could you guys use your professional experiences to let me know what you think is reasonable charge and where best I could find someone to help me.
My application is a US shopping website where people can set up an online shop and upload their products and maintain an inventory of the items.
This is what I’m looking for setup and configuration with the following two areas:
1) AWS SYSTEMS…
* AIM - Set up my server admin users.
* EC2 - Web Hosting.
* RDS - Fast DB.
* SES - To send emails.
* S3 Buckets - Uploaded image hosting.
Route 53 - I don’t know but someone said I should have this.
* Elastic Load Balancing - For, well, load balancing.
2) SCRIPTS…
* A script that would back up the database once a day and save it to a private S3 Bucket.
* A script that will run once a day that calls an internal API, and POST a query to it.
* A script that runs once every 90 days, to refresh the SSL using ZeroSSL.com
Is there anything that I've missed such as security systems, firewalls, auto scaling and CDNs?
The quotes that I've received arranged from $320 to $64,000. I know I am being abused because of my ignorance. I would never overcharge someone because the customer doesn't know the efforts of the work. I hope someone here can help to understand the efforts needed and can tell me the true cost.
Thank you6 -
Because of cache split brain issue I have to invalidate cache every 5min. I've said to lead dev about this hack and we both agree to solve it asap.
This was 3 months ago...
Temporary fix becomes production solution. And it only took me 10min to add cron entry to every prod srv.
So productive!
Btw you should see users faces when page referesh changes page completely because of load balancing xD)1 -
!rant
Just learned how to use Spring + Eureka + Feign + Ribbon to easily discover microservices as they're deployed, do basic load balancing, easily hitting endpoints on other micro services, etc.
Mind = blown 🤓 -
I am working on a pub-sub based protocol (like MQTT) with some added features. I am developing a python based server for my protocol which can be run on distributed architecture with load balancing without any tweaks. I am planning to make this server and the protocol open source.
The whole thing is getting so complex that I think about scrapping this project sometimes. I need your inspiration guys. Really, I need it. I know this protocol will be good enough to help people working on IoT, chat or any pub-sub based application if I can complete it. Cheer me up, please. -
Sophomore year starting soon so I'm looking for new project (s) to complete in parallel with the studies.
Some are more design-y and some more backend-y but I recently started getting better at designing so :)
1) Learn some fragment shader stuff. I've always been messing around with graphics and have a game on steam, so I think that's a good idea to be paired with signal processing.
2) Reactive web services. Preferably with spring-boot or vert.x but
3) I would also like to dive into golang (and make some reactive thing with it)
4) WebAssembly seems nice... But I got some concerns
5) exercise making wireframes -> CSS (with some js)
6) I've never really done any real backed work with nodejs, except serving and aot compiling js, or doing gulp tasks
7) Implementing a whole project, or a fraction of it as serverless on aws
* I'm definitely going to use a couple very simple services to make a docker swarm with load balancing, etc, just because I know how everything works but got no practical knowledge
8) Design an esports jersey for the university department I'm in (shouldn't take long)
So what do you guys think? Recommendations are welcome :)
P.S. last year in review:
> A webapp running on a raspberry pi powering a reflex testing game on gpio (java/spring-boot , codename: buttonmasher)
> small Elastic search cluster to monitor some random university servers through kibana dashboards
> laser tracking on wall of *any* colour and variable light conditions via a webcam (opencv) , controlling the mouse pointer, whether you run it against a projector or any wall
> jstrain.herokuapp.com => a small JavaScript powered tool with a DSL to help you train more efficiently without a coach
> Various random Photoshop stuff -
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