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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 894853 times)
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BitMinerN8
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October 14, 2012, 06:55:43 PM
 #1121


With all the changes lately, I was wondering if I'm still connected to the optimal server(s). Is stratum.btcguild.com ok to connect to? Also, is the "private" pool from a while back still valid? It works, I am still using it for the backup backup pool for non-stratum rigs, just wanted to make sure.

Thanks again.


Yes, stratum.btcguild.com is ok (it's Dallas, forgot to list that one).  I don't like to point people there anymore because it's not on port 8332 like the others, so unless you know the port you can't get onto it.

The "private" server is still around, though it's not protected like it was before.  I had to take down the EC2 instances because the costs were completely insane on bandwidth.  With the absolutely terrible luck for the last 4 weeks straight, I can't afford to be spending an extra $600/mo on EC2 bandwidth.  Once stratum support is close to universal, I might try using it again.

Yeah, that is crazy money. Ok, I'll switch to just btcguild.com as the stratum server then. Thanks.
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October 15, 2012, 09:15:33 PM
 #1122

Is there any upper limit?  Shocked
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2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64

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October 15, 2012, 09:54:51 PM
 #1123

Why no stratum on port80?  All the others are working great!  Thanks MM!


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October 15, 2012, 11:22:54 PM
 #1124

Is there any upper limit?  Shocked
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2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64

There is no upper limit (why should there be?).  It will keep doubling the difficulty until you hit the sweet spot which is 1 share every 4-6 seconds approximately (it doubles when you exceed 1 per 3 seconds after a 5 minute evaluation, or if you're going extremely fast over a 1 minute evaluation).

RIP BTC Guild, April 2011 - June 2015
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October 15, 2012, 11:28:37 PM
 #1125

Why no stratum on port80?  All the others are working great!  Thanks MM!

I will probably setup a port 80 Stratum server when I merge some of the getwork servers together.

RIP BTC Guild, April 2011 - June 2015
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October 16, 2012, 11:12:14 AM
 #1126

Is there any upper limit?  Shocked
Quote
2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64

There is no upper limit (why should there be?).  It will keep doubling the difficulty until you hit the sweet spot which is 1 share every 4-6 seconds approximately (it doubles when you exceed 1 per 3 seconds after a 5 minute evaluation, or if you're going extremely fast over a 1 minute evaluation).

I think hash result is a positive/unsigned integer, if you keep divide target, depends how target is represented and what sort of inequality you use, diff wont matter anymore or no hash will pas target verification. I would have put a soft limit before that, however, considering ASIC war which will probably happen after preorders, moores law and quantum computing, we may get to the point where vardiff will mean hash result = 0, target = 0 and inequality is equality.    Cheesy

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October 16, 2012, 03:05:41 PM
 #1127

Is there any upper limit?  Shocked
Quote
2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64

There is no upper limit (why should there be?).  It will keep doubling the difficulty until you hit the sweet spot which is 1 share every 4-6 seconds approximately (it doubles when you exceed 1 per 3 seconds after a 5 minute evaluation, or if you're going extremely fast over a 1 minute evaluation).

I think hash result is a positive/unsigned integer, if you keep divide target, depends how target is represented and what sort of inequality you use, diff wont matter anymore or no hash will pas target verification. I would have put a soft limit before that, however, considering ASIC war which will probably happen after preorders, moores law and quantum computing, we may get to the point where vardiff will mean hash result = 0, target = 0 and inequality is equality.    Cheesy

It would depend on how the miner software has implemented the target.  The hard limit in bitcoin is a 256-bit target (at which point you can't get any harder unless we move beyond SHA256).  That target would be 256 sequential 0-bits.  In my pool software, I double the decimal representation of difficulty each time because I'm checking the bits.  Difficulty of 1 is 32 sequential 0 bits.  Each time difficulty is doubled, it's checking one more sequential bit for 0.

Remember, even with Moore's Law, you're looking at doubling every ~18 months.  To even hit 100 out of 256 bits of difficulty (147,573,952,589,676,412,928 if my math is right), we've got a long way to go.  Right now we're at 52-53 bits.  So somewhere around 60 years.  And we'll still have 156 bits left after that.  It would be up to mining software to update for any 32/64-bit limitations on share targets conversions.

RIP BTC Guild, April 2011 - June 2015
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October 16, 2012, 09:50:10 PM
 #1128

cgminer can currently cope on stratum with 96 bits of the difficulty target since the first 32 bits are zeroes and I'm currently using a 64bit unsigned integer for diff calculation. So that allows a maximum difficulty of 18,446,744,073,709,551,616. So we've still got a while to go... and I can always revise it in the future.

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October 16, 2012, 10:00:46 PM
 #1129

cgminer can currently cope on stratum with 96 bits of the difficulty target since the first 32 bits are zeroes and I'm currently using a 64bit unsigned integer for diff calculation. So that allows a maximum difficulty of 18,446,744,073,709,551,616. So we've still got a while to go... and I can always revise it in the future.

If any of us are even alive at that point.  Decades of doubling every 18 months before the _share_ targets would be that high.  Even if your starting point is a "1 TH/s" ASIC.

RIP BTC Guild, April 2011 - June 2015
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October 16, 2012, 10:08:24 PM
 #1130

cgminer can currently cope on stratum with 96 bits of the difficulty target since the first 32 bits are zeroes and I'm currently using a 64bit unsigned integer for diff calculation. So that allows a maximum difficulty of 18,446,744,073,709,551,616. So we've still got a while to go... and I can always revise it in the future.

If any of us are even alive at that point.  Decades of doubling every 18 months before the _share_ targets would be that high.  Even if your starting point is a "1 TH/s" ASIC.
Right, I guess I left the sarcasm tag off my post.

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October 18, 2012, 02:31:19 PM
 #1131

Hello, I seem to be experiencing an issue with while doing a BTC payout.  I get the following message:

A payout request is already being processed for your account (you may have clicked the link twice).

I have been seeing this since yesterday.  Does anybody know how I can resolve this?  Thanks.
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October 18, 2012, 04:11:13 PM
 #1132

Hello, I seem to be experiencing an issue with while doing a BTC payout.  I get the following message:

A payout request is already being processed for your account (you may have clicked the link twice).

I have been seeing this since yesterday.  Does anybody know how I can resolve this?  Thanks.

This tends to happen whenever the bitcoin software fails to respond to the RPC command.  It's a pretty rare occurrence, but tends to be the result of the wallet getting heavily fragmented.  I'll be fixing the problem over the next hour.  I may have to do a restart of the servers and point them at a new wallet address, because it seems to have happened to multiple people over the last 2 days, and normally it only happens once a month at most.

RIP BTC Guild, April 2011 - June 2015
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October 18, 2012, 04:13:15 PM
 #1133

This tends to happen whenever the bitcoin software fails to respond to the RPC command.  It's a pretty rare occurrence, but tends to be the result of the wallet getting heavily fragmented.  I'll be fixing the problem over the next hour.  I may have to do a restart of the servers and point them at a new wallet address, because it seems to have happened to multiple people over the last 2 days, and normally it only happens once a month at most.

Thank you for looking into this matter.
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October 18, 2012, 04:29:46 PM
 #1134

The stuck payouts (payments that were made but never confirmed by bitcoind) have been manually added in, and the accounts have been "unfrozen" so they can request payouts again.

I've updated my payout script slightly to fix this faster in the future.  Whenever it happens again, the payment will be added to your history (so far there has never been an instance where the payment wasn't made), and your account will be "frozen" again.  When it happens, anytime I personally go to the website a very large blinking banner will appear telling me that a payment was not fully completed, so that I can go in and verify the transaction and unfreeze the account.  I load the page constantly throughout the day, so the maximum time an account should ever be stuck in frozen status would be maybe 12 hours except in very unusual circumstances.

During "frozen" status, you can always turn on automatic payments.  This has always been the preferred method of users handling their payouts since it means I'm not having to move coins in/out of a cold wallet as a result of users leaving coins in their account for long periods of time.

RIP BTC Guild, April 2011 - June 2015
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October 18, 2012, 07:20:48 PM
 #1135

I don't know if this is related to the reboots that you mentioned, but my Stratum Mining Proxy died around 11:15am Pacific. It was pointed to "btcguild.com" and it is getting a connection timed out error. I switched to "stratum.btcguild.com" and it's up and running.
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October 18, 2012, 07:46:31 PM
 #1136

Stratum had its first crash...straight up segfault.  Restarted it inside GDB to catch the cause next time it happens (if it does).

RIP BTC Guild, April 2011 - June 2015
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October 18, 2012, 08:10:38 PM
 #1137

Stratum had its first crash...straight up segfault.  Restarted it inside GDB to catch the cause next time it happens (if it does).
Does the Stratum code that runs on your pool get updated like the version we run from github? (Currently 1.1.1)
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October 18, 2012, 08:11:20 PM
 #1138

Stratum had its first crash...straight up segfault.  Restarted it inside GDB to catch the cause next time it happens (if it does).
Does the Stratum code that runs on your pool get updated like the version we run from github? (Currently 1.1.1)

My Stratum pool is not related to the proxy or pool that slush has posted.  It's an entirely custom C++ design.

RIP BTC Guild, April 2011 - June 2015
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October 18, 2012, 08:13:44 PM
 #1139

Stratum had its first crash...straight up segfault.  Restarted it inside GDB to catch the cause next time it happens (if it does).
Does the Stratum code that runs on your pool get updated like the version we run from github? (Currently 1.1.1)

My Stratum pool is not related to the proxy or pool that slush has posted.  It's an entirely custom C++ design.

Cool, I figured it had to be something beefy to handle the load. I didn't think you would be running that in Python.  Wink
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October 18, 2012, 08:26:23 PM
 #1140

Stratum had its first crash...straight up segfault.  Restarted it inside GDB to catch the cause next time it happens (if it does).
Diff was so big it bounced out of the memory.. Cheesy

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