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Search - "1gb of nothing"
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This is kind of a horror story, with a happing ending. It contains a lot of gore images, and some porn. Very long story.
TL;DR Network upgrade
Once upon a time, there were two companies HA and HP, both owned by HC. Many years went by and the two companies worked along side each one another, but sometimes there were trouble, because they weren't sure who was supposed to bill the client for projects HA and HP had worked on together.
At HA there was an IT guy, an imbecile of such. He's very slow at doing his job, doesn't exactly understand what he's doing, nor security principles.
The IT guy at HA also did some IT work for HP from time to time when needed. But he was not in charge of the infrastructure for HP, that was the jobb for one developer who didn't really know what he was doing either.
Whenever a new server was set up at HP, the developer tried many solutions, until he landed on one, but he never removed the other tested solutions, and the config is scattered all around. And no documentation!!
Same goes with network, when something new was added, the old was never removed or reconfigured to something else.
One dark winter, a knight arrived at HP. He had many skills. Networking, server management, development, design and generally a fucking awesome viking.
This genius would often try to cleanse the network and servers, and begged his boss to let him buy new equipment to replace the old, to no prevail.
Whenever he would look in the server room, he would get shivers down his back.
(Image: https://i.bratteng.xyz/Ie9x3YC33C.j...)
One and a half year later, the powerful owners in HA, HP and HC decided it was finally time to merge HA and HP together to HS. The knight thought this was his moment, he should ask CEO if he could be in charge of migrating the network, and do a complete overhault so they could get 1Gb interwebz speeds.
The knight had to come up with a plan and some price estimates, as the IT guy also would do this.
The IT guy proposed his solution, a Sonicwall gateway to 22 000 NOK, and using a 3rd party company to manage it for 3000 NOK/month.
"This is absurd", said the knight to the CEO and CXO, "I can come up with a better solution that is a complete upgrade. And it will be super easy to manage."
The CEO and CXO gave the knight a thumbs up. The race was on. We're moving in 2 months, I got to have the equipment by then, so I need a plan by the end of the week.
He roamed the wide internet, looked at many solutions, and ended up with going for Ubiquiti's Unifi series. Cheap, reliable and pretty nice to look at.
The CXO had mentioned the WiFi at HA was pretty bad, as there was WLAN for each meeting room, and one for the desks, so the phone would constantly jump between networks.
So the knight ended up with this solution:
2x Unifi Securtiy Gateway Pro 4
2x Unifi 48port
1x Unifi 10G 16port
5x Unifi AP-AC-Lite
12x pairs of 10G unifi fibre modules
All with a price tag around the one Sonicwall for 22 000 NOK, not including patch cables, POE injectors and fibre cables.
The knight presented this to the CXO, whom is not very fond of the IT guy, and the CXO thought this was a great solution.
But the IT guy had to have a say at this too, so he was sent the solution and had 2 weeks to dispute the soltion.
Time went by, CXO started to get tired of the waiting, so he called in a meeting with the knight and the IT guy, this was the IT guys chance to dispute the solution.
All he had to say was he was familiar with the Sonicwall solution, and having a 3rd party company managing it is great.
He was given another 2 weeks to dispute the solution, yet nothing happened.
The CXO gave the thumbs up, and the knight orders the equipment.
At this time, the knight asks the IT guy for access to the server room at HA, and a key (which would take 2 months to get sorted, because IT guys is a slow imbecile)
The horrors, Oh the horrors, the knight had never seen anything like this before.
(Image: https://i.bratteng.xyz/HfptwEh9qT.j...)
(Image: https://i.bratteng.xyz/HfptwEh9qT.j...)
(Image: https://i.bratteng.xyz/hmOE2ZuQuE.j...)
(Image: https://i.bratteng.xyz/4Flmkx6slQ.j...)
What are all these for, why is there a fan ductaped to on of the servers.
WHAT IS THIS!
Why are there cables tied in a knot.
WHY!
These are questions we never will know the answers too.
The knight needs access to the servers, and sonicwall to see how this is configured.
After 1.5 month he gains access to the sonicwall and one of the xserve.
What the knight discovers baffles him.
All ports are open, sonicwall is basically in bridge mode and handing out public IPs to every device connected to it.
No VLANs, everything, just open...10 -
Our team makes a software in Java and because of technical reasons we require 1GB of memory for the JVM (with the Xmx switch).
If you don't have enough free memory the app without any sign just exits because the JVM just couldn't bite big enough from the memory.
Many days later and you just stand there without a clue as to why the launcher does nothing.
Then you remember this constraint and start to close every memory heavy app you can think of. (I'm looking at you Chrome) No matter how important those spreadsheets or illustrator files. Congratulation you just freed up 4GB of memory, things should work now! WRONG!
But why you might ask. You see we are using 32-bit version of java because someone in upper management decided that it should run on any machine (even if we only test it on win 7 and high sierra) and 32 is smaller than 64 so it must be downwards compatible! we should use it! Yes, in 2019 we use 32-bit java because some lunatic might want to run our software on a Windows XP 32-bit OS. But why is this so much of a problem?
Well.. the 32-bit version of Java requires CONTIGUOUS FREE SPACE IN MEMORY TO EVEN START... AND WE ARE REQUESTING ONE GIGABYTE!!
So you can shove your swap and closed applications up your ass but I bet you that you won't get 1GB contiguous memory that way!
Now there will be a meeting about this issue and another related to the issues with 32-bit JVM tomorrow. The only problem is that this issue only occures if you used up most of your memory and then try to open our software. So upper management will probably deem this issue minor and won't allow us to upgrade to 64-bit... in 20fucking1910 -
Last week all the sites I'm hosting started acting real strange... Nothing made sense.
One site gave an error telling me that the database couldn't write to disk "insufficient space"...
What? Are you fucking kidding me?
Turns out indexing 14TB of data kinda makes mlocate use a lot of space...
Excluded one folder, optimized the db and voila, from 17GB to less than 1GB...1 -
Why is netbeans, or Java in general, so fucking bad at handling memory ? I mean, I'm literally doing nothing on my code and I see my IDE consuming more and more RAM, to some point it goes over 1GB so I have to close then reopen it to "flush" the memory taken...
It's 2017, how the fuck can't we still manage to actually use a correct amount of RAM when I open a barely 10MB project ??
And it applies to everything related to Java. Like Android, Minecraft and other Java based softwares...18 -
ugh. my isp apparently doesn't allow to change DNS in its routers. what a load of bullshit.
Internet has been really flakey lately because of this11 -
After couiple of hours (Yes, apprently it's insane how hard is to add a new NIC to a linux machine and make it start on boot), I finally got my connexion working !
Story :
Server has original MB 1Gbits card. Internet connexion is 1.1 Gbps. So 1Gb card only picked at 940 Mbits download
I bought a 2.5 Gb card (new nic)
Pluged it in : Nothing
Couple of ifconfig -a etc, bring device UP : Yeah working !
Reboot : Nothing
/etc/interfaces : nothing
And why it's not eth0 and eth1 etc as before but some thing cryptic like enp3s0.
Well, at least now everything working (Apperently there is a new "network plan" config file in yaml... what a waste, DO FUCKING JSON YOU RETARDS)
Ping is awsome tho ! Same cable on windows Machine, I get 5 ms.4