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Search - "racks"
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So a few days ago I felt pretty h*ckin professional.
I'm an intern and my job was to get the last 2003 server off the racks (It's a government job, so it's a wonder we only have one 2003 server left). The problem being that the service running on that server cannot just be placed on a new OS. It's some custom engineering document server that was built in 2003 on a 1995 tech stack and it had been abandoned for so long that it was apparently lost to time with no hope of recovery.
"Please redesign the system. Use a modern tech stack. Have at it, she's your project, do as you wish."
Music to my ears.
First challenge is getting the data off the old server. It's a 1995 .mdb file, so the most recent version of Access that would be able to open it is 2010.
Option two: There's an "export" button that literally just vomits all 16,644 records into a tab-delimited text file. Since this option didn't require scavenging up an old version of Access, I wrote a Python script to just read the export file.
And something like 30% of the records were invalid. Why? Well, one of the fields allowed for newline characters. This was an issue because records were separated by newline. So any record with a field containing newline became invalid.
Although, this did not stop me. Not even close. I figured it out and fixed it in about 10 minutes. All records read into the program without issue.
Next for designing the database. My stack is MySQL and NodeJS, which my supervisors approved of. There was a lot of data that looked like it would fit into an integer, but one or two odd records would have something like "1050b" which mean that just a few items prevented me from having as slick of a database design as I wanted. I designed the tables, about 18 columns per record, mostly varchar(64).
Next challenge was putting the exported data into the database. At first I thought of doing it record by record from my python script. Connect to the MySQL server and just iterate over all the data I had. But what I ended up actually doing was generating a .sql file and running that on the server. This took a few tries thanks to a lot of inconsistencies in the data, but eventually, I got all 16k records in the new database and I had never been so happy.
The next two hours were very productive, designing a front end which was very clean. I had just enough time to design a rough prototype that works totally off ajax requests. I want to keep it that way so that other services can contact this data, as it may be useful to have an engineering data API.
Anyways, that was my win story of the week. I was handed a challenge; an old, decaying server full of important data, and despite the hitches one might expect from archaic data, I was able to rescue every byte. I will probably be presenting my prototype to the higher ups in Engineering sometime this week.
Happy Algo!8 -
Call comes down from the CEO and through his "Yes Man" that some investors are coming by to visit and he want to show off the data center and test servers. There are four full racks of storage servers filled with HDDs and each server has 4 to 16 HDDs a piece.
I got told to "make all of the lights blink", which can be epic seeing it in action but my test cycles rarely aligned that way.
All morning I was striping RAID arrays and building short mixed I/O tests to maximize "LED blinking" for the boss's henchman.
Investors apparently live/die by blinking light progress and it was all on me to get everything working.21 -
More sysadmin focused but y’all get this stuff and I need a rant.
TLDR: Got the wrong internship.
Start working as a sysadmin/dev intern/man-of-many-hats at a small finance company (I’m still in school). Day 1: “Oh new IT guy? Just grab a PC from an empty cubicle and here’s a flash drive with Fedora, go ahead and manually install your operating system. Oh shit also your desktop has 2g of ram, a core2 duo, and we scavenged your hard drive for another dev so just go find one in the server room. And also your monitor is broken so just take one from another cubicle.”
Am shown our server room and see that someone is storing random personal shit in there (golf clubs propped against the server racks with heads mixed into the cabling, etc.). Ask why the golf clubs etc. are mixed in with the cabling and server racks and am given the silent treatment. Learn later that my boss is the owners son, and he is storing his personal stuff in our server room.
Do desktop support for end users. Another manager asks for her employees to receive copies of office 2010 (they’re running 2003 an 2007). Ask boss about licensing plans in place and upgrade schedules, he says he’ll get back to me. I explain to other manager we are working on a licensing scheme and I will keep her informed.
Next day other manager tells me (*the intern*) that she spoke with a rich business friend whose company uses fake/cracked license keys and we should do the same to keep costs down. I nod and smile. IT manager tells me we have no upgrade schedule or licensing agreement. I suggest purchasing an Office 365 subscription. Boss says $150 a year per employee is too expensive (Company pulls good money, has ~25 employees, owner is just cheap) I suggest freeware alternatives. Other manager refuses to use anything other than office 2010 as that is what she is familiar with. Boss refuses to spend any money on license keys. Learn other manager is owners wife and mother of my boss. Stalemate. No upgrades happen.
Company is running an active directory Windows Server 2003 instance that needs upgrading. I suggest 2012R2. Boss says “sure”. I ask how he will purchase the license key and he tells me he won’t.
I suggest running an Ubuntu server with LDAP functionality instead with the understanding that this will add IT employee hours for maintenance. Bosses eyes glaze over at the mention of Linux. The upgrade is put off.
Start cleaning out server room of the personal junk, labeling server racks and cables, and creating a network map. Boss asks what I’m doing. I show him the organized side of the server room and he says “okay but don’t do any more”.
... *sigh* ...20 -
I'm a DevOps engineer. It's my job to understand why this type of shit is broken, and when I finally figure it out, I get so mad at bullish players like AWS.
It's simple. Install Python3 from apt.
`apt-get update && apt-get install -y python3-dev`
I've done this thousands of times, and it just works.
Docker? Yup.
AWS AMI? Yup.
Automation? Nope.
WTF? Let's waste 2.5 hours and figure out why this morning.
In docker: `apt-cache policy python3-dev` shows us:
python3-dev:
http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
But in AWS instance, we see we're reading from "http://us-east-1.ec2.archive.ubuntu.com/... focal/main" instead!
Ah, but why does it fail? AWS is just using a mirror, right? Not quite.
When the automation script is running, it's beating AWS to the apt mirror update! My instance, running on AWS is trying to access the same archive.ubuntu.com that the Docker container tried to use. "python3-dev" was not a candidate for installation! WTF Amazon? Shouldn't that just work, even if I'm not using your mirror?
So I try again, and again, and again. It works, on average, 1 out of every 5 times. I'm assuming this means we're seeing some strange shit configuration between EC2 racks where some are configured to redirect archive.ubuntu.com to the ec2 mirror, and others are configured to block. I haven't dug this far into the issue yet, because by the time I can SSH into the machine after automation, the apt list has already received it's blessed update from EC2.
Now I have to build a graceful delay into my automation while I wait for AWS to mangle, I mean "fix up" my apt sources list to their whim.
After completely blowing my allotted time on this task, I just shipped a "sleep" statement in my code. I feel so dirty. I'm going to go brew some more coffee to be okay with my life. Then figure out a proper wait statement.7 -
Should’ve posted this after it happened, but it requires a bit of background anyway.
There’s this guy that oversees our OpenStack environment. My team often make jokes and groan about him in private because he’s so overbearing. A few months back, he had to take us to our data center to show us our new racks, and he kept saying stupid stuff like “you break this and it costs me $30,000” as if he owns everything. He’s just... one of THOSE people. Always speaks in such a condescending way. We make jokes that he is our “best friend”.
Our company is shifting most of our products to the cloud in response to the coronavirus (trying to make it an opportunity for “innovation”). This has involved some structural and responsibility changes in our department, and long story short, I’m now heading the OpenStack environment alongside other projects.
This means going through grueling 1-on-1 meetings with our “best friend”. It’s not too bad, I can be pretty patient with people, so I didn’t mind too much at first. Then a few things happened.
1. He sent a shared folder that he owned containing info related to the environments. Several documents were outdated and incomplete, so I downloaded them, corrected them, and then uploaded the documents to my teams file share, as I was supposed to since we now own the projects.
2. Several files were missing, and when I asked about them, he said “Oh, did you refresh the browser?”. I told him no, that I downloaded them locally and republished them to my teams server, because he was supposed to hand everything off to us at once. He says “Well, silly, how are you going to get updates if you’re looking at them locally?” and kind of chuckles at me like I’m stupid.
3. He insists on training me how to remote into one of the servers to check on cluster space, which in itself is fine. I understand others wanting to make sure things will be done right by the people who come after them. But he tells me to download SuperPutty. I tell him, “oh no, that’s alright. I don’t need putty”. He says “oh cool, what tool do you use for ssh?”. I answer him “Just Git. If I want to I can use a CentOs bash terminal too, because we have WSL installed”. He responds “You can’t ssh through Git”.
I was actually a little shocked. I didn’t know if he was serious or not so I was silent for a few seconds before hesitantly saying “yes you can”. He says “this is news to me” and I so I tell him “every single one of our build jobs fetches code from Git with ssh” and he seemed genuinely shocked and surprised by that.... so then it occurs to me to show him that you can ssh in Powershell and that REALLY blew his mind. He would not shut up about it for several minutes. I was amused until it just got annoying.
Needless to say, my team had been previously teasing me about having to work with him, so they found it hilarious when I told them afterwards.8 -
# gym rant
My reaction when people hog the only two squat racks in the entire gym for 40+ minutes doing lifts that don't need rack at all. All I want to do is implement time division multiplexing for equipment.2 -
!rant
I am on vacation from my full time job this week. I wanted to use this week to write a PoC for a potential customer of my side business. really interesting project for me.
potential customer is a window and door manufacturer and needs an application to manage their racks.
their ERP system already has a simple rack management but it is only useable in house.
they want the drivers to be able to scan racks they deliver to a customer with a native app and they want to have a webapp for the customers to see racks that are assigned to them as well as reporting a rack ready for collection. And that all needs to be in sync with their local ERP system.
as i am a .net guy i decided to go with the abp framework (because it got recommended to me) and xamarin for the native app part (because i have experience in this).
i have now spent 4 days implementing this and it has been so rewarding. the framework is so powerful and it's template saved me endless hours.
i even wrote a very basic connector service which synchronizes data between my app and the clients ERP system. Just one way until now because of time issue, but i learned to scaffold an ef core with db first. It is noticable that the ERP system is 2-tiered - meaning the clients directly talk to the db.
Tomorrow i will implement the xamarin client.
4 days just coding what i want to. choosi g my own velocity and making my own priorities without any interruptions or discussions and a bunch of new things to learn.
Probably wasted half a day because of stupidy (implemented some bugs) but fixing and learning is part of the journey and i lime that part, too.
i am so relaxed right now 😁 just wanted to share this without a real reason :P3 -
*goes on eBay looking for a rack*
This looks like a nice deal.
*scrolls dow-*
Oh, my cat is going to love this.1 -
Monitoring goes does in one of our server racks, one I had just been working in (other side of the building). Hmm, odd. Oh wait its back online again. Better go take a quick peek to see whats up, just in case. Walks over to rack. Everything seems fine. Walks back to desk. About 15sec later. Fqdn.plsfckof is offline again. -_-
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Come in to work, sit down at desk, coworker comes in. Tells me I'm going to potentially start crimping grounding wires for 40 racks. Shows me the email, I notice I'm not in the CC chain. I love not being in the know about work I may be doing that isn't in my job description.1
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I have a small NUC-like machine in my home with an old external hdd connected to it. I use it to run my local gitlab, nextcloud and to test a few websites I build for the lolz.
If you too have a homelab, whether it's a single raspberry or an entire room full or racks, you know damn well that everything you have running locally as a web service keeps going until it doesn't, for whatever fucking reason. This time, it was the turn of my nextcloud.
The machine has arch linux running, I chose it since I already use it on my coding laptop and being a rolling release means I don't have to manually upgrade to a newer version, risking various fuck-ups and consequent screaming of profanity.
The downside is that arch is a bleeding-edge distro, so, despite being pretty good for what concerns security, as updates are pushed out some packages may still require legacy software to work as intended, since obviously not all developers for all packages can release simultaneously.
The problem was that php reached 8.2.x but nextcloud couldn't use anything beyond 8.1, so the highlighted solution was to download php-legacy, a package with a set of utilities which the cloud could use instead of mainline php.
Pretty easy, right? fuck my life, here we go.
I edited apache-httpd's configurations to link the new libraries, updated every reference in every virtual host that could possibly screw up the web server.
Done.
Then I went on and disabled the php-fpm mainline, creating a new systemd unit that would instead run the legacy executable and afterwards I edited nextcloud's additional configs so they use that instead.
Done, getting a bit dizzy, but I reboot everything and breathe.
At this point the migration should be complete, but wait, the server returns an error saying that the application is still trying to use php 8.2+...wait, what in the sysadmin Christ?
Back to nextcloud config, everything is set, everything else in every other fucking php-legacy and web server is fine, the old fpm service is disabled, I am confused, and why in the FUCKING FUCK is the new php-fpm unit failing to start at boot with "error 78/config - directory not found"? Hello? Am I being trolled by a shitty dual-core amazon fake NUC?
Maybe yes, cause it turns out that the unit was referencing a directory in the external hdd, which gets mounted at boot time after the unit itself starts, so nothing much, just a matter of tinkering with cron jobs, a reboot and at least this one is off my balls.
But why still isn't the server responding correctly? why? WHY?
After slamming my cock on the keyboard here and there scrolling back through all the config files I think to myself, hmmm, my gitlab is working flawlessly, well yeah, I didn't need to install the whole web stack, everything was nice and easy wrapped in a docker container...so why am I even here, why the fuck am I bothering with all this layered web-app bullshit, why don't I just run the up-to-date docker image that someone else has already set up for me, back up all the data and reupload them on the application?
Oh joy, you can't imagine, after 3...almost 4 hours of pure computer-touching the relief I had from seeing the blue web page with the "welcome to nextcloud" title.
Right now it's copying back all the files, and the external hdd is now linked to include the data folder.
Like really, everything was solved in two lines of bash.
I am still fuming, but at least I learned a valuable lesson, if you want a service up for yourself, implement it and deploy it as fucking easy straight-forward as you can, giving MAXIMUM priority to already fully-working options that are out there just waiting to be downloaded and used. I swing my scrotal sack on web-apps elegance as long as it's MY homelab in MY place.
Eat a fat dick php.
sudo pacman -Rns nextcloud
sudo systemctl disable --now php-fpm-legacy
sudo pacman -Rns php-legacy
sudo pacman -Rns $(sudo pacman -Qdtq)2 -
I have a Server with the IP address
x.x.233.61
For clarification, this is the public IP, it does not start with 192 or 172 or whatever local IP.
When I pinged 8.8.8.8 it said
From x.x.1.1: Destination Net Unreachable
After asking my Hoster what this IP address was, he said it would be the router.
In a traceroute to 8.8.8.8 this IP never appears.
Since these ping problems are now fixed, this IP never appears anywhere. If it really is the Server racks router, is there any way to get that IP in Linux?4