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Author Topic: Wall Observer - MtGoxUSD wall movement tracker  (Read 1652830 times)
ManBearPig
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April 13, 2013, 07:15:48 PM
 #22601

I see the 0.04s surely they alone are not enough to cause this. Maybe they ARE a means of synchronising the attack somehow?

With free trades you could do this all day, only paying for the DDoS botnet time.

I tweet crypto nonsense: https://twitter.com/DunningKruger_
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ManBearPig
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April 13, 2013, 07:18:32 PM
 #22602

Yes indeed the front-end and trade servers MUST BE different for sure.

Looks like you don't get my point. How external attackers can access servers inside gox infrastructure? This is pretty unbelievable.

Step 1: Wait for spread.
Step 2: Make 3 accounts.
Step 3: Deposit 0.5 bitcoin into each.
Step 4: Sell 0.5 bitcoin from one of them.
Step 5: Make a bot that buys your own 0.5 bitcoin back over and over and over for 0% fee until spread closes.

Yep, that works.

I would imagine more accounts than 3 though.

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Missionary
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April 13, 2013, 07:19:50 PM
 #22603

Mt.Gox is killing Bitcoin.

Lag --> Fear --> Selling --> More lag --> Panic --> Dumping --> Even more lag.

I have not touched Mt.Gox in a couple of years, but the prices on all other exchanges are suffering because of their failure.

Exodus!

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April 13, 2013, 07:20:33 PM
 #22604

Maybe there is another way... Changing a property about the order or something which doesn't cost the manipulator but is costly computationally and repeating it dozens or hundreds of times a second. Without being on the gox servers, no real way to tell.

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Sitarow
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April 13, 2013, 07:26:22 PM
 #22605

seleme
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April 13, 2013, 07:27:55 PM
 #22606

1500 btc wall on 100 half an hour ago. I guess that's broken long time ago.

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April 13, 2013, 07:28:18 PM
 #22607


EnergyVampire
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April 13, 2013, 07:31:53 PM
 #22608

Lag appeared to be dropping rapidly a couple minutes ago. Fell form 30+ and settled around 28 and is hovering.

Is it possible the lag is caused by too many people updating their orders simultaneously?

It would need to be a hell of a spike in order changing.

I don't know what percentage of orders are short-lived, in that they are either market orders or Bid or Asks who almost immediately get filled.

I suspect most orders are short-lived - just a hunch.

Down to 25.50... and we get another big seller.

Ah, yes, I believe that's the cause right there. When a large market sell order is executed, the matching engine needs to confirm that the USD is in the account for every single bid getting filled.

As someone mentioned earlier, new hardware won't fix this (Gox is supposedly using SSD now). It's the code but at least Gox is planning on fixing this soon.

jl2012
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April 13, 2013, 07:32:36 PM
 #22609

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

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essem
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April 13, 2013, 07:34:32 PM
 #22610

can't help myself but I keep on hitting the F5 button on Gox
Krabby
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April 13, 2013, 07:34:54 PM
 #22611

Are we going down? Gulp.
ElectricMucus
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April 13, 2013, 07:36:28 PM
 #22612

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

How long does it take for a cpu to count from 1 to 10000?

First they ignore you, then they laugh at you, then they keep laughing, then they start choking on their laughter, and then they go and catch their breath. Then they start laughing even more.
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April 13, 2013, 07:36:36 PM
 #22613

So far I'm pretty impressed by the market through this. Its been over an hour and it has been a very slow decline. A couple panics but not a ton.
ManBearPig
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April 13, 2013, 07:37:37 PM
 #22614

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

I'm sure the trading engine wouldn't let a single IP address create that many orders, so it has to be distributed.

I tweet crypto nonsense: https://twitter.com/DunningKruger_
wonkytonky
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April 13, 2013, 07:38:42 PM
 #22615

if this happens.. they should block all incomming  new orders.. until lag is gone..  

bfx discount code : FvwrZ545k2 (get 50% back )
https://simplefx.com/?sfx-r=b9acece2-d022-4f9b-a40a-e35cbf9097b0   (get 50% back )
essem
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April 13, 2013, 07:38:46 PM
 #22616

So far I'm pretty impressed by the market through this. Its been over an hour and it has been a very slow decline. A couple panics but not a ton.

I'm pretty sure it's not going to look so pretty once the lag is over
essem
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April 13, 2013, 07:39:42 PM
 #22617

Looks like a lot of limit orders at 105 are going to get burned
jl2012
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April 13, 2013, 07:39:53 PM
 #22618

1. Deposit 1USD to a dummy account
2. Create 10000 bid orders of 0.01BTC at $0.01 slowly (without creating lag)
3. Sell off
4. Rapidly adding new orders to the dummy account
5. The MtG card trading engine is forced to re-evaluate the validity of the 10000 bid orders
6. 30 minutes lag
7. Profit

Does it work?

I'm sure the trading engine wouldn't let a single IP address create that many orders, so it has to be distributed.

Sure, I just make it looks simpler. You need thousands of dummy accounts

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DougTanner
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April 13, 2013, 07:40:02 PM
 #22619

Ugh.


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hmmmstrange
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April 13, 2013, 07:41:58 PM
 #22620

Is there a place i can bet on goxlag? Is anyone charting the lag?
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