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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 829489 times)
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eleuthria
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December 21, 2012, 12:17:34 AM
 #1441

Guys, despite the fact that I think that something is wrong with btc vardiff implementation, I personally think that eleuthria is one of the best pool admins around, and basically I do think that whatever he says is mostly 99% truth, so, whenever he says one thing is like that, most of the time that's the truth, so, just chill and wait..

What do you think is wrong with vardiff implementation?  Current settings are it will double your difficulty if your shares per minute is above 40.  Which means:

Difficulty 1 for users that are between 0 MH/s and 2800 MH/s..
Difficulty 2 for users that are between 2800 MH/s and 5600 MH/s.
Difficulty 4 for users that are between 5600 MH/s and 8400 MH/s.

This is on a per-connection basis, so if you have multiple copies of mining software open, but each one is running separately (instead of through a stratum proxy), the vardiff is applied to each miner.  This gives an expected SPM range of 20-40, the average being 30.  This is the highest SPM target of any other pool at the moment, chosen specifically because it provides very little variance even in a small window (15-30 minutes).  Obviously this only applies to Stratum.  There is no vardiff for getwork and never will be.

R.I.P. BTC Guild, 2011 - 2015.
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December 21, 2012, 12:23:55 AM
 #1442

As I said before, I can't exactly point, it is just my feeling. Tried to figure it out but I didn't give it enough scrutinizing time, so it is just IMO (I will edit my post).

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December 21, 2012, 12:54:31 AM
 #1443

Are we still being attacked? The website cannot connect to the database.
Never mind, seems to be fixed now but it is very slow.
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December 21, 2012, 01:20:50 AM
 #1444

Are we still being attacked? The website cannot connect to the database.
Never mind, seems to be fixed now but it is very slow.


The attack keeps moving an hour or two after each nullroute.  Called the DC again to have them nullroute the next one, and I'm juggling servers around to try to keep things running as much as possible.

R.I.P. BTC Guild, 2011 - 2015.
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December 21, 2012, 04:03:30 AM
 #1445

If we are using the proxy what server should we use?
eleuthria
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December 21, 2012, 04:16:55 AM
 #1446

If we are using the proxy what server should we use?


Try multiple servers: mine1, mine2, mine3, btcguild.com, etc.  The stratum proxy will redirect you to a different backend, so even if that DNS goes down you should remain connected.

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eleuthria
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December 21, 2012, 03:55:11 PM
 #1447

The attacks haven't completely stopped, but they are being mitigated.  The mergedmining server should be up again shortly.

R.I.P. BTC Guild, 2011 - 2015.
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gmg
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December 22, 2012, 09:42:23 AM
 #1448

Is the site down? I get a 'To view this page, you must log in to area “realm” on btcguild.com:80' message when trying to access it.

The miners seem to work though...

eleuthria
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December 22, 2012, 04:31:21 PM
 #1449

Is the site down? I get a 'To view this page, you must log in to area “realm” on btcguild.com:80' message when trying to access it.

The miners seem to work though...



If you ever encounter this error in the future, add 'www' to the address.  When the DNS shuffles around like this during a DDoS, I don't always have time to fix the redirects to the website.  It should let you in without it now.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 23, 2012, 05:33:55 PM
 #1450

The getwork servers had a brief restart today to put in a change that I have been considering (and tried once in the past) for quite some time.  Ufasoft-based miners are no longer allowed on BTC Guild getwork servers.  For almost every botnet I have banned on BTC Guild, all but 2 were using Ufasoft.  For GPU mining, there is no reason to use Ufasoft.  CPU mining is unprofitable, a waste of resources, and puts as much load on getwork as a fast GPU, even if you're mining on a raspberry pi.

This change should improve the performance on the getwork pools for all other users.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 24, 2012, 04:28:56 AM
 #1451

I've deployed a fix to the generic 'btcguild.com' getwork server.  I brought back the 3rd getwork server, and pointed the default DNS to that server, but the redirect for Stratum was still using the old IP from before the DDoS.  If you're using a native stratum client, you may need to restart it to get back on Stratum.  This shouldn't have affected too many users, since native clients should default back to getwork if the stratum redirect fails, and most proxy users had the correct IP already redirected from before the 3rd server came back online.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 31, 2012, 10:40:28 PM
 #1452

I've noticed a lot of users have returned that were absent after the DDoS, but the split between Stratum and Getwork started shifting back to getwork.  When the servers were initially recovering, the Stratum redirects were not pointing to the proper IP, and your miners may have defaulted back to getwork.

If you're using a native Stratum miner and you're seeing any of the following:
1) Warning about not using stratum ("Mine more efficiently" notice at the top of each page)
2) Not having shares show up as PPLNS
3) Seeing "pool # not providing work fast enough" in cgminer output

Please give your miner a quick restart if you see any of the above when using a native stratum miner.  It should redirect back to the Stratum based server.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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January 08, 2013, 01:34:57 AM
 #1453

Some payouts failed today.  Apparently a huge number of users who haven't been active/never withdrew coins in the past few months decided to come back and finally withdraw, cleaning out the hot wallet.  I'm refilling the hot wallet right now, and the bad payouts have been cleared from payment history.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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January 08, 2013, 02:05:04 AM
 #1454

A nice stream of blocks helped speed up confirmations of the cold->hot wallet transfers.  Automatic payouts were processed twice this hour to catch the ones that failed today and yesterday.

R.I.P. BTC Guild, 2011 - 2015.
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January 10, 2013, 04:12:54 AM
 #1455

Did you pay out the transaction fees from this block? http://blockchain.info/block-index/333825/00000000000002327a29e7fdf539e773e960e631622c46cf859efebdbb78f9a8

It had over 111 BTC in fees, over 4 times the block reward.

eleuthria
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January 10, 2013, 04:19:14 AM
 #1456

PPLNS users got a big boost to earnings from it.  Time to figure out who the real owner is and send them back the part that hasn't already been credited to accounts.

R.I.P. BTC Guild, 2011 - 2015.
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fcmatt
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January 10, 2013, 04:33:38 AM
 #1457

PPLNS users got a big boost to earnings from it.  Time to figure out who the real owner is and send them back the part that hasn't already been credited to accounts.

I am curious what easy method you can use to determine how much was legit fees versus a possible mistake amount of fees?

Part of me thinks you should keep it unless someone comes to you. But maybe i do not realize how easy it might be to set aside the mistake amount versus hours of work involved for you to chase someone down.

Basically i am curious how u go about it.
eleuthria
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January 10, 2013, 04:36:18 AM
 #1458

PPLNS users got a big boost to earnings from it.  Time to figure out who the real owner is and send them back the part that hasn't already been credited to accounts.

I am curious what easy method you can use to determine how much was legit fees versus a possible mistake amount of fees?

Part of me thinks you should keep it unless someone comes to you. But maybe i do not realize how easy it might be to set aside the mistake amount versus hours of work involved for you to chase someone down.

Basically i am curious how u go about it.

The person who created the bad transaction made a post (and a raw transaction in an attempt to try to get a lower fee version on the network to possibly "double spend" the transaction with the appropriate fee), and confirmed their identity.

102 BTC of the overdone fee was returned to the original wallet the transaction came from in this transaction: http://blockchain.info/tx-index/42579467/4a0fe8cb78b19778a49d171642649c9ee25453ed206894c88b049d0ee7939a0f .  The rest was already credited to PPLNS miners (rounded up to 9 BTC).


Luckily you can always see the originating address, so it was risk free to send it back without worrying that it was going to the wrong person.  I just needed confirmation it was safe to send back to the original address, otherwise it would've been harder to go about sending the money back (https://bitcointalk.org/index.php?topic=135665.msg1445272#new).

R.I.P. BTC Guild, 2011 - 2015.
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fcmatt
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January 10, 2013, 02:15:05 PM
 #1459

And that shows why i mine here. Good guy and honest.
jojo69
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January 13, 2013, 11:36:22 PM
 #1460

are we down?

my miners have not been able to connect last half hour or so

This is not some pseudoeconomic post-modern Libertarian cult, it's an un-led, crowd-sourced mega startup organized around mutual self-interest where problems, whether of the theoretical or purely practical variety, are treated as temporary and, ultimately, solvable.
Censorship of e-gold was easy. Censorship of Bitcoin will be… entertaining.
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