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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 828907 times)
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Joshwaa
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December 05, 2012, 10:34:16 PM
 #1321

How goes the attack. I am still noticing stratum and getwork miners having connection issues from time to time.

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eleuthria
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December 05, 2012, 11:07:14 PM
 #1322

How goes the attack. I am still noticing stratum and getwork miners having connection issues from time to time.

Chicago is still running smooth (generic btcguild.com / mine1-3).  I just made a small fix to the Dallas server, it looks like it was having some filters triggering from too many active connections (probably due to changing a lot of DNS as the result of the attack).  Hopefully Dallas will behave normally going forward.

Still not sure how long until I can get a new EU server up.  I'm still waiting on Hetzner to let me back into the servers they blackholed.

R.I.P. BTC Guild, 2011 - 2015.
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os2sam
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December 06, 2012, 01:05:03 AM
 #1323

Uh, where's the PPS stats now?

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
eleuthria
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December 06, 2012, 01:27:55 AM
 #1324

Uh, where's the PPS stats now?

Same place they've always been?  If you're referring to 24 hour earnings, that will be back on 12/6 once the new system has had a full 24 hours of history built up.  Everything else is still there on Account Summary, considering the only PPS stats on that page previously were Paid Out/Unpaid amounts.  The full history is still visible under PPS Earnings History.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 06, 2012, 01:51:01 AM
 #1325

How goes the attack. I am still noticing stratum and getwork miners having connection issues from time to time.

Alright, I loaded up the status on the Chicago stratum server and noticed it was having a "soft crash" where the pool dumped the connections and started fresh once ever few hours.  Not a HUGE deal (<1 second of downtime each time it happens), but certainly not ideal.  Running the Chicago stratum server in a debugger to see if I can find out what's going on next time it happens.

R.I.P. BTC Guild, 2011 - 2015.
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Joshwaa
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December 06, 2012, 02:10:06 AM
 #1326

How goes the attack. I am still noticing stratum and getwork miners having connection issues from time to time.

Alright, I loaded up the status on the Chicago stratum server and noticed it was having a "soft crash" where the pool dumped the connections and started fresh once ever few hours.  Not a HUGE deal (<1 second of downtime each time it happens), but certainly not ideal.  Running the Chicago stratum server in a debugger to see if I can find out what's going on next time it happens.

This must have been the problem I was experiencing. It was about once every two hours for me. All my cgiminers went thru it fine but one. Thats how I noticed it would keep saying loosing shares and locking up. Oh well. Hope its all fixed.

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eleuthria
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December 06, 2012, 03:06:51 AM
 #1327

How goes the attack. I am still noticing stratum and getwork miners having connection issues from time to time.

Alright, I loaded up the status on the Chicago stratum server and noticed it was having a "soft crash" where the pool dumped the connections and started fresh once ever few hours.  Not a HUGE deal (<1 second of downtime each time it happens), but certainly not ideal.  Running the Chicago stratum server in a debugger to see if I can find out what's going on next time it happens.

This must have been the problem I was experiencing. It was about once every two hours for me. All my cgiminers went thru it fine but one. Thats how I noticed it would keep saying loosing shares and locking up. Oh well. Hope its all fixed.

The bug popped up again and was caught in the debugger.  I've restarted the pool with auto-restart now, while I work on a fix.  Sorry for any downtime since the only way to catch it is to make sure the pool doesn't restart itself once it happens.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 06, 2012, 03:22:24 AM
 #1328

A test patch has been deployed on the Chicago stratum server for the bug that was causing a crash.  It's set to restart on failure, so worst case scenario you may lose 1 second of connectivity every few hours if it does not work.  It has some extra debug lines added so if it doesn't work I can hopefully catch it on the next pass.  Sorry for the downtime once again.  I've known there was a small crash happening every 12+ hours last week, but thought that I had it fixed when I updated the Stratum code to support PPLNS.  It just happened more often these last 24 hours now that the DE server has been merged with the Chicago servers temporarily.

R.I.P. BTC Guild, 2011 - 2015.
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Joshwaa
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December 06, 2012, 03:28:41 AM
 #1329

Thanks again for all your hard work! No problems in the last 3 hrs for me.

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eleuthria
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December 06, 2012, 03:56:58 AM
 #1330

New patch in place.  Found the main cause of this problem.

R.I.P. BTC Guild, 2011 - 2015.
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Joshwaa
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December 06, 2012, 04:01:23 AM
 #1331

Hope so. Just saw a few of my miners go back to getwork from stratum. I must say you fix stuff quick as hell!

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eleuthria
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December 06, 2012, 04:03:58 AM
 #1332

It looks like there are some people who are either attacking the Stratum pool, or simply running a completely broken implementation of the protocol.  If you're running some kind of custom Stratum miner and it broke tonight as a result of my patch, please send me an email.

EDIT:  Shoot, it looks like it's slush's stratum proxy sending some kind of keep-alive message (no method, just "error": null, "id": 1, "result": null)

R.I.P. BTC Guild, 2011 - 2015.
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RyanRed
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December 06, 2012, 04:09:31 AM
 #1333

I seem to be getting server not responding while ming a lot right now. But then it seems to pick itself back up.
eleuthria
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December 06, 2012, 04:12:26 AM
 #1334

I seem to be getting server not responding while ming a lot right now. But then it seems to pick itself back up.

There have been a LOT of server restarts in the last hour trying to figure out what's been crashing it.  I have a fix in place, but it turns out it completely broke slush's stratum proxy.  I have a NEW fix in place that should allow Slush's proxy to connect, while still avoiding the crash issue.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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December 06, 2012, 06:17:44 AM
 #1335

So far so good.  Sorry again for the ~1 hour of high connectivity issues.  It's really tough to debug an issue like what was happening, outside of letting it happen again with extensive debug information displaying in real-time.

R.I.P. BTC Guild, 2011 - 2015.
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December 06, 2012, 01:18:46 PM
 #1336

I'm sure you're pretty busy with everything going on, but will the port80 server be making a comeback?
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December 06, 2012, 04:08:27 PM
 #1337

I'm sure you're pretty busy with everything going on, but will the port80 server be making a comeback?

Yes, the port80 server should be back by tomorrow.

Update after last night's hour of instability:  The fix to the Stratum server seems to have gone in perfectly.  Software has been up for about 12 hours without a single reset.  I also did a quick restart to bitcoind (doesn't reset the stratum server) to help fix a potential issue with stales.

R.I.P. BTC Guild, 2011 - 2015.
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RyanRed
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December 06, 2012, 04:50:39 PM
 #1338

Thanks for all the hard work! Love the new stat layout btw Smiley
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December 06, 2012, 05:00:27 PM
 #1339

the newest cgminer sure cannot handle such server problems. 5 out of 6 of them crashed.
and this is probably why I will quit mining with gpus some day soon. just do not feel like
messing with it anymore for what it brings in.
eleuthria
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December 06, 2012, 05:03:54 PM
 #1340

the newest cgminer sure cannot handle such server problems. 5 out of 6 of them crashed.
and this is probably why I will quit mining with gpus some day soon. just do not feel like
messing with it anymore for what it brings in.

Newest cgminer (or any after 2.8.3) should be able to handle disconnects.  I know some versions of the proxy may have had issues if you were connecting through that.  Regardless, the issue has been fixed now, and it was mostly the side-effects of the DDoS attack.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
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