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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 828774 times)
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Xialla
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May 10, 2013, 09:09:11 AM
 #2341

Did anybody else have multiple miners just crash when mining against BTCGuild last night? I had 4 running on 4 separate machines and they all died about 8 hours ago..weird!

Around 8 hours ago the getwork server was restarted, and so was EU-Stratum (not sure on the exact time, but it was around 8 hours ago).  It shouldn't have made a miner die though, both outages were quite brief.  Are you up to date on your mining software?  I thought most the recent versions had fixed disconnect/reconnect issues for Stratum (and getwork never had reconnect issues as far as I'm aware).

Yep, I'm on cgminer 3.1.0...I can understand maybe having issues reconnecting, but for the app to crash completely was very strange.

I have got linux and windows based miners. linux print the error mentioned above and windows cgminer crashed completely too.
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kano
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May 10, 2013, 09:09:26 AM
 #2342

Did anybody else have multiple miners just crash when mining against BTCGuild last night? I had 4 running on 4 separate machines and they all died about 8 hours ago..weird!

Around 8 hours ago the getwork server was restarted, and so was EU-Stratum (not sure on the exact time, but it was around 8 hours ago).  It shouldn't have made a miner die though, both outages were quite brief.  Are you up to date on your mining software?  I thought most the recent versions had fixed disconnect/reconnect issues for Stratum (and getwork never had reconnect issues as far as I'm aware).

Yep, I'm on cgminer 3.1.0...I can understand maybe having issues reconnecting, but for the app to crash completely was very strange.
There is a bug in curl that crashes 3.1.0 when pools die.
It has already been fixed in current git (ckolivas removed the curl dependency for stratum)
It will be in the next release.

Pool: https://kano.is BTC: 1KanoiBupPiZfkwqB7rfLXAzPnoTshAVmb
CKPool and CGMiner developer, IRC FreeNode #ckpool and #cgminer kanoi
Help keep Bitcoin secure by mining on pools with Stratum, the best protocol to mine Bitcoins with ASIC hardware
Wed
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May 10, 2013, 09:15:08 AM
 #2343

There is a bug in curl that crashes 3.1.0 when pools die.
It has already been fixed in current git (ckolivas removed the curl dependency for stratum)
It will be in the next release.

Sounds great, thanks =)

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May 10, 2013, 12:54:44 PM
 #2344

What coins Merged mining on BTC Guild ?
eleuthria
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May 10, 2013, 03:30:41 PM
 #2345

Merged Mining (+ mine1/mine2/mine3.btcguild.com) server is being restarted to apply the switch to PPLNS on getwork servers.  It should be back up shortly.  Additionally, I am moving mine1/mine2/mine3.btcguild.com off of the merged mining server later this evening, which should help with some of the crashes the server has been seeing every few days.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
elchorizo
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May 10, 2013, 07:59:22 PM
 #2346

Looks like the EU and US servers are both down right now... for both of my miners at 2 diff locations.

Edit: and back up. Total downtime seemed to be about 10 minutes.

BTC: 1Chorizo6WNabZxVfQyGtvF4JiRt7Hexxb
LTC: Lchorizoy8ck7Arbby8LDnw5wAmi8h6Hzb
eleuthria
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May 10, 2013, 08:04:16 PM
 #2347

Sorry for the downtime, a pool wide restart on servers was executed.  Everything should be back to normal now.  I've been trying to fix some database bottleneck issues lately (PPLNS is very demanding compared to PPS in terms of reads/writes).

Total downtime was approx. 8 minutes.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
Jahare
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May 10, 2013, 08:34:07 PM
 #2348

For shift ID#5986 shares appear doubled (not a bad thing) but do not believe that is intended.  Were two shifts merged together during the Downtime for the Database?

LTC:   LRsiHqFcSXGyP9zvYUvJxe7N7ivLcVb72z      FTC:  71rY4vP8wWEyKx9FNBvHM9MFrNH9QRboTf
BTC:  16PngKMS1eR2HviY7wEurD6ZxdB1kvHK1J    NMC:  N7XPo3E3fEDAFUhyrvQBHzYkA45kkjWDse
QRK:  QT5JhzHDU4pNeKzA9GWoaBh8bzjPK9cADS  DOGE: DK2wCYTux4JpcnmRGsKmnc5qCY615hsiAV
eleuthria
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May 10, 2013, 09:10:53 PM
 #2349

For shift ID#5986 shares appear doubled (not a bad thing) but do not believe that is intended.  Were two shifts merged together during the Downtime for the Database?

Yes.  The cause of the problem was actually due to a shift failing to close.  In that situation, all outstanding shares are merged into one shift.  The PPLNS reward allocation is designed to split based on the shares outstanding at the time the block is solved, so a shift with 2x as many shares will get twice as much per block as the other shifts.  The other shifts still average the same though, since they were receiving payments for extra time due to the longer shift.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
eleuthria
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May 11, 2013, 02:25:50 AM
 #2350

I posted an update on the pool website, but also wanted to post it here.

Miners that were on getwork previously:  Your 24 hour earnings stat will take approximately 24 hours to be calibrated for PPLNS.  Due to how PPLNS work, shares are submitted and receive payments for approximately 6 hours after they were submitted.  As a result, the pool has a "delayed" 24 hour earnings calculation for PPLNS, where it looks at the last 24 hours worth of closed shifts to determine your 24 hour earnings.  This means you will have approximately 6 hours of earnings not showing up on your 24-hour earning statistic for the next day.

Do not be alarmed by the sharp decline in 24 hour earnings as a result.  While it looks low now, it would eventually be made up if you left the pool, since you would continue receiving payments for ~6 hours after turning off your miners.

Sorry for the confusion, this is a display issue I hadn't thought of, and a few miners have sent me emails/PMs asking why their earnings took a sharp decline after this morning's change.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
soundasleep
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May 11, 2013, 08:48:16 AM
 #2351

I added support today to keep track of your BTC Guild wallet balances (BTC and NMC) to CryptFolio. This helps you keep track of mining pool balances over time, and generates reports (such as your overall USD net worth).

CryptFolio lets you keep track of your cryptocurrencies (BTC/LTC/NMC/FTC/XPM/DOGE/...), investments, securities and miners using public addresses and read-only APIs. https://cryptfolio.com
johnyj
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May 11, 2013, 01:42:26 PM
 #2352

Can't access main website now, mining not affected yet

eleuthria
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May 11, 2013, 04:18:07 PM
 #2353

Can't access main website now, mining not affected yet

Are you still having an issue?  Nothing was wrong as of about 20 minutes after your post when I woke up and checked the website on my phone.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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May 12, 2013, 03:25:51 AM
 #2354

Website is a bit slow right now (started about 10 minutes ago) due to someone doing a brute force attempt on the BTC Guild login page.  I've killed the brute force from actually getting any information out of the server, but they are still hitting the website pretty hard from many locations (or faking their source and cloudflare isn't catching it), which is causing the website to have a bit of lag.  Mining pools are doing fine at the moment.

Just a standard security notice:  Do not use the same password on BTC Guild as you do on other sites.  This brute force attack is using a list of what appears to be specific usernames/password combinations, which indicates they're using a leaked database from somewhere.  They don't come even close to matching BTC Guild usernames in most cases, so it's definitely a blind attack, but may be sourced from another Bitcoin site that was compromised at any point in the last few years.




UPDATE:  The website slowdown has been fixed with some temporary adjustments to Cloudflare's security settings.  Unfortunately this is currently causing problems with the API for some users.  I have a support request in with Cloudflare to discuss options on how to keep the API page functioning with the current security settings.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
eleuthria
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May 13, 2013, 04:40:45 PM
 #2355

Restart happening right now on EU-Stratum.  Server completely stopped responding.  Do not believe it's an attack at this time, but should know shortly.


UPDATE:  EU-Stratum restored.  Downtime is estimated to have been about 9 minutes in total.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
eleuthria
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May 14, 2013, 06:23:48 PM
 #2356

EU-Stratum was down again this morning, roughly the same time as yesterday.  I have temporarily moved EU-Stratum DNS to the north american servers while waiting for a new server to be provisioned in the EU with a different hosting company.  Sorry for the inconvenience, and hopefully service will be moved back to the EU within the next 24-48 hours.

Estimated downtime of EU-Stratum was once again about 7-10 minutes [I get the warning that the server is dead after 5 minutes of downtime].

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
lemonys
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May 15, 2013, 01:37:46 PM
 #2357

The US server is really slow to connect at the moment.  Hopefully its just miners from EU moving to it due to the issues with the EU server and not something more sinister...

eleuthria
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May 15, 2013, 05:01:23 PM
 #2358

New server in the EU has been provisioned and is in the process of being setup.  I will update this post (or make a new post if somebody replies first) when the DNS is updated to point to the new EU Stratum server, which should be in a few hours.



UPDATE:  EU-Stratum is now back in Europe and DNS has been updated.  Users will be redirected to the server the next time they try to connect to eu-stratum.btcguild.com (NOTE:  DNS caching may cause you to connect to US servers for up to 24 hours even though the DNS should be cached for 5 minutes).

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
dtown
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May 16, 2013, 05:41:48 AM
 #2359

Is there a JSON version of the block history on this page?

https://www.btcguild.com//index.php?page=pool_stats

Thanks!
eleuthria
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May 16, 2013, 09:47:02 PM
 #2360

The pool hot wallet will be going through maintenance tomorrow at 12:00 (noon) PST/19:00 UTC.  This maintenance should only last about two hours, during which time payouts will not be available.  Mining will continue uninterrupted, and automatic payouts will run two "catch-up" runs after it is complete.  Maintenance will mostly be based on waiting for the hot wallet transactions to receive a few confirmations, so it may be as short as 30 minutes, or as long as 4 hours depending on overall network luck and transaction confirmation time.

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