Topic: Wall Observer - MtGoxUSD wall movement tracker - page 550. (Read 1811613 times)

You've never written a relational database application with millions of rows of data that is queried, inserted and updated at a high rate and that needs to be (pseudo) real time, have you?

You have to give mtGox one thing: security is pretty tight. I hope this doesn't change through coinlab. It's more important even than speed.

What? I'm of the impression I could code an exchange on my phone that runs faster... this may be naive but still: I don't think this is a hardware problem.

{"result":"success","return":{"lag":1081055125,"lag_secs":1081.055125,"lag_text":"18 minutes"}}

64 Cores (so they say).  Let us be REALLY conservative and say they're 2Ghz Processors.

2,000,000,000 (instructions per second) * 64 (cores) * 60 ( seconds) * 18 (minutes) = 138,240,000,000,000 Instructions.

Yes, that's right, it will apparently take the Gox Server 138.24 TRILLION Calculations before it can match your trade.  Seriously efficient trading engine, I tell you.

Enigma

As of now; 10 minutes lag from GOX trading engine !!!

edit:
Almost 15 minutes now without trading data!

Actually, many of those early adopters sat in the first class jumped out of the window as well.

Yawn.. anything happened?

I stayed up very late, hooked by the high-volume action... Now everything feel so slow and lame...

Hope some other big fish panic sells. I had a consistent bid at 33.0, but the price only went down to 33.30

I've always asked myself how many of them fall off the train.


We Bitcoiners know it, we only need to look at our charts

was fun riding that train up and down; also profitable

rofl

They should purchase the hardware outright and colocate it. All they need to pay for then is the bandwidth and cabinet space.

Multiple redundant servers are required along with different servers for backend transaction processing and the front end data API processing systems.

Well I missed out on a good sell in the 48.9 range due to the severe lag on MtGox.

I would have placed various buy orders but as MtGox turnd to shit I completely missed all of this. I saw an 11 minute wait at one point.

Then I transferred my BTC off the exchange only for a large backlog of unconfirmed transactions to build up which meant all my BTC were stuck on my PC and I couldn't move anything at this point.

At this point I went to sleep.

This was a missed opportunity due to very bad performance on MtGox and massive blockchain transaction confirmation delays.

MtGox should have additional backup server hardware in place ready to go in case one or of the main servers fail, these backup servers could be brought online as main front end / processing servers should one of the main servers fail.

Their public facing servers which serve up themarket information should never fail. Websites like the excellent one by Clark Moody were failing to open socket connections to MtGox so I can only assume they turned off the data via API service or it was completely overloaded.

I can't help buy feel they don't have much of a backup plan there and they certainl don't have enough redundant hardware in place.

Some serious changes need to be made before these kind of issues cause a crash by themselves.

Scalability is very important.

As for the blockchain transaction delays, I don't know what can be done about this but something needs to be done. In times where there's a high volume of transactions they need to be processed ina reliable and timely manner. This isn't happening right now.

Their hardware is pathetic for a trading platform.

https://mtgox.com/img/pdf/20120831/Transparency.008.jpg

They need to call Oracle or one of the big heavy hitters.  They should be running multiple distributed servers (Database, Web Front End, Order Matching, etc).  Something like the ZFS based Exadata or similar.

It was long ago time to abandon the Dell.

Engima

I'm guessing a lot of the volatily is caused by the lag. If people hurriedly put in emotional-based orders and these execute minutes later, irrational movement all over the place is preprogrammed. If this is correct, there might be calmer times ahead after the update. Still interesting, but calmer.

The software works, at least no mistakes known. Maybe it's only about quadrupling their hardware.

bid:

ask:

Nothing like reactionary upgrading.. It would be far too much work to plan and prepare ahead of time.  I do understand that Gox couldn't possibly have guessed that bitcoin trading would continue to grow in volume. 

Enigma

It was

Me too, I woke up made some sort of undefinable noise when I saw the price. And than 'loaded' made clear he buys, and I made coffee. I totally missed the action, feels bad, but I think I would feel worse if I sold.