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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2033778 times)
clarkjhaley13
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December 28, 2015, 08:11:45 AM
 #14061

http://www.hashingbros.com

Trying my hand at creating a pool. I have included a total of 5 coins that can be mined. btc, trc, xjo, mzc, and tit.
Site is a work in progress but the mining end of things works great so far. The front ends work but I am still editing them.

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notbatman
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December 28, 2015, 08:51:19 AM
 #14062

I like how 75% of my shares were orphaned for 3 days before the 4PH jump then magically back to normal once it came online.

edit: looks like I spoke too soon, back to getting mostly orphaned shares.  Cry
kano
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December 28, 2015, 12:53:31 PM
 #14063

Well, with the high centralisation of p2pool and now a very large percentage being one miner ...
wouldn't the sharechain have the same problem as the BTC blockchain orphaning everyone else's blocks if > 51% and often if close to that?

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
Meuh6879
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December 28, 2015, 12:57:55 PM
 #14064

Orphan happend when bitcoin client ... use minimal or no fees protection.

I have conduce somes tests about that on Bitcoin XT (many orphan because of the fees strategies).
Return to Bitcoin Core with fixed (originals) fees ... and no more orphan.

hashing device is the same, HW errors are the sames, too.

French ... but not so much   ---===---   P2P ... it's people at the end   ---===---   P2Pool (10,9 GH/s).
Comment miner des bitcoins ? Un tutoriel est là : https://bitcointalk.org/index.php?topic=1114415.0
Bitcoin change everything ... an explain of this fact : https://www.youtube.com/watch?v=joITmEr4SjY
notbatman
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December 28, 2015, 02:16:17 PM
 #14065

So they're exploiting the fees now somehow in their latest attempt to attack decentralization? Testing out some changes now...
yslyung
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December 28, 2015, 02:37:23 PM
 #14066

wow have not seen this for a very long time 3 blocks in 24 hours !!

more to come.
jonnybravo0311
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December 28, 2015, 02:40:47 PM
 #14067

wouldn't the sharechain have the same problem as the BTC blockchain orphaning everyone else's blocks if > 51% and often if close to that?
Absolutely.  The p2pool code will attempt to prevent this by forcing a higher and higher difficulty onto miners on the node; however, it can be overridden by the miner providing it manually.

Jonny's Pool - Mine with us and help us grow!  Support a pool that supports Bitcoin, not a hardware manufacturer's pockets!  No SPV cheats.  No empty blocks.
Meuh6879
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December 28, 2015, 09:38:14 PM
 #14068

 Grin And ... it's gone like planned.  Roll Eyes


French ... but not so much   ---===---   P2P ... it's people at the end   ---===---   P2Pool (10,9 GH/s).
Comment miner des bitcoins ? Un tutoriel est là : https://bitcointalk.org/index.php?topic=1114415.0
Bitcoin change everything ... an explain of this fact : https://www.youtube.com/watch?v=joITmEr4SjY
-ck
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December 28, 2015, 09:51:54 PM
 #14069

Absolutely.  The p2pool code will attempt to prevent this by forcing a higher and higher difficulty onto miners on the node; however, it can be overridden by the miner providing it manually.
You can override the difficulty higher on a node but you can't force it lower than p2pool demands.

Primary developer/maintainer for cgminer and ckpool/ckproxy.
Pooled mine at kano.is, solo mine at solo.ckpool.org
-ck
jonnybravo0311
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December 28, 2015, 10:55:38 PM
 #14070

Absolutely.  The p2pool code will attempt to prevent this by forcing a higher and higher difficulty onto miners on the node; however, it can be overridden by the miner providing it manually.
You can override the difficulty higher on a node but you can't force it lower than p2pool demands.
Correct.  The lowest you can set it is to the p2pool minimum share difficulty.  The problem with that approach is that with a giant hash rate, you're going to flood the share chain.  P2Pool will eventually adapt to the added hash rate by increasing the share minimum difficulty, but it still won't compensate if you're a majority of the pool's hash.  This will lead directly to what kano posited earlier: everyone else's shares will be orphaned if you've got >51% of the pool's total hash rate.

As a "nice actor" you would allow your node to dynamically adjust your share rate, or you would manually set it to something high enough not to cause the situation previously listed.

Jonny's Pool - Mine with us and help us grow!  Support a pool that supports Bitcoin, not a hardware manufacturer's pockets!  No SPV cheats.  No empty blocks.
bney
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December 29, 2015, 03:58:37 AM
 #14071

I have the p2pool up and running, the web page looks fine but when I attach a miner to it, I get nothing but errors about submitted share with hash greater than target.
I am using http:// rather than stratum+tcp://    Its acting almost like a clash of scrypt verses sha.

Any thoughts would be helpful.
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December 29, 2015, 09:39:15 AM
 #14072

Be aware that the bitmain fork also intercepts stale work and drops it inside their driver code - before the main cgminer engine gets to see it and decide based on the command line options.
... as can be seen in their fork here:
https://github.com/bitmaintech/cgminer/blob/master/driver-bitmain.c#L1274

I have just sent them an e-mail about this issue. Who knows, may be it will lead us to renewed driver code.  Roll Eyes

From Siberia with love!
Came to mining from BOINC... Will return back in future.
Bytekiller
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December 29, 2015, 10:01:32 AM
 #14073


anyone having issues with s7 mining on p2p ? i am seeing much lower hashrates, abt 1 ths lesser GRRRRRRRRRRRRRRRRRRRRRRRR !



my 5,2 ths S7 mine only with 4,6 ths @p2pool
try 4 different nodes (ping 16-25 ms)

In einer Hand ein Messer, in einer Hand ein Buch, sag mir wer gewinnt Buchstaben oder Blut?

BTC-Tips:1GPmBYyD7TwmGypydTNJi8r8tmuN7dhH9e
notbatman
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December 29, 2015, 10:21:28 AM
 #14074

[off topic]
My alarm is set to 21:00 hrs every day on my android phone.

Mon. 23:08 hrs, I wake up look at my phone; the alarm says "Mon 21:00" on the lock screen, "oh shit WTF I say"; I call work to tell them I'm late will be there ASAP, hang up and look at the lock screen again and now the alarm says "Tue 21:00".
[/off topic]

23:55 hrs, at work and check my p2pool stats page; since the last restart; 7 shares (1 orphan, 0 dead).

00:39 hrs, return to the office after doing shit and check the stays page again; 7 shares (1 orphan, 1 dead).

Really, WTF is going on here?
Ares~
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December 29, 2015, 12:33:07 PM
 #14075


anyone having issues with s7 mining on p2p ? i am seeing much lower hashrates, abt 1 ths lesser GRRRRRRRRRRRRRRRRRRRRRRRR !



my 5,2 ths S7 mine only with 4,6 ths @p2pool
try 4 different nodes (ping 16-25 ms)

Same problem for me, my 5 x S7`s were also hashing at 15-20TH instead of about 24TH on Cadence`s  p2ppool, ping was 35, took them off in the end due to poor performance and now one of the S7`s is not hashing at full speed on antpool whereas it was, currently its hashing at 3TH instead of around 4.73TH, firmware has been updated and miner power cycled numerous times, need to actually check with hosting if a full re-boot can be done, but still not back to full speed  Angry.

Was looking forward to mining on p2ppool but after whats happened to my 1 S7 I going to avoid p2ppool unfortunately.

I emailed Bitmain with the below from the system log so will update this post if anybody wants to know the outcome, hoping a RMA is not required.
  559.496729] chain2 reg crc_r{0x16}crc{0x13} Err ret{0x80d1c2ff}
[  559.502998] asic cmd return 80d1c2ff
[  559.506741] chain2 reg crc_r{0x16}crc{0x13} Err ret{0x80d1c2ff}
[  559.512931] asic cmd return 80d1c2ff
[  559.516676] chain2 reg crc_r{0x16}crc{0x13} Err ret{0x80d1c2ff}
[  559.522862] asic cmd return 80d1c2ff
[  559.526609] chain2 reg crc_r{0x16}crc{0x13} Err ret{0x80d1c2ff}
[  559.532804] asic cmd return 80d1d189
[  559.536555] chain2 reg crc_r{0x1f}crc{0x64} Err ret{0x80d1d189}
[  559.542742] asic cmd return 80d1d189
[  559.546489] chain2 reg crc_r{0x1f}crc{0x64} Err ret{0x80d1d189}
[  559.553708] asic cmd return 80d1d189
[  559.557496] chain2 reg crc_r{0x1f}crc{0x64} Err ret{0x80d1d189}
[  559.563686] asic cmd return 80d1d189
[  559.567433] chain2 reg crc_r{0x1f}crc{0x64} Err ret{0x80d1d189}
[  559.573610] asic cmd return 80d1d189
[  559.577351] chain2 reg crc_r{0x1f}crc{0x6c} Err ret{0x80d1d189}
[  559.583550] ch2-as33: dev->task_buffer_wr{0x00000923}rd{0x00000d23}ret
work_id{0x8d11} don't match task_buffer_match{0x0d11}
[  559.596043] ch2-as33: dev->task_buffer_wr{0x00000923}rd{0x00000d23}ret
work_id{0x8d14} don't match task_buffer_match{0x0d14}
[  559.607863] ch2-as8: dev->task_buffer_wr{0x00000923}rd{0x00000d23}ret
work_id{0x8cf3} don't match task_buffer_match{0x0cf3}
[  559.619713] asic cmd return 80117e0f
[  559.623482] chain2 reg crc_r{0x1d}crc{0x2b} Err ret{0x80117e0f}
PatrickMacH
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December 29, 2015, 04:21:45 PM
 #14076

Hi,

P2Pool release 15.0 - commit hash: 86bbdac7eaaa03438e71ee9dcb11898c7b2b8bdf

HARDFORK - Upgrade URGENTLY required in the next few days.

Windows binary: http://u.forre.st/u/ovqxauzj/p2pool_win32_15.0.zip
Windows binary signature: http://u.forre.st/u/wynjbvpn/p2pool_win32_15.0.zip.sig
Source zipball: https://github.com/forrestv/p2pool/zipball/15.0
Source tarball: https://github.com/forrestv/p2pool/tarball/15.0

Changes:
* BIP65/block version 4 compatibility
* Requires Bitcoin >=0.11.2 (for BIP65 compatibility)


BIP65 will take effect in the next week and in order for P2Pool to continue working without producing invalid blocks, everyone needs to upgrade. At 50% of our hashrate upgrading, P2Pool instances will start displaying a warning saying that an upgrade is required. Reaching that point as quickly as possible is very important. And then, at 95%, users that have not upgraded will be excluded. If non-upgraded users aren't excluded before BIP65 takes effect, P2Pool users will be subject to paying other users for invalid work - effectively a withholding attack.

So, please upgrade to 15.0 now and also tell everyone else to.
[/size]

Is BIP65 causing any trouble in regards to merged mining Bitcoin together with Namecoin and other sha256 coins like 611 (SixEleven)?
Using the latest release v15 I'm only able to merge mine one additional coin. As soon as I add a second coin the workers get flooded by messages like these and the DOA rate approachs 100%:
Code:
2015-12-28 15:44:46.902459 Got new merged mining work!
2015-12-28 15:44:47.709738 Got new merged mining work!
2015-12-28 15:44:47.920350 Got new merged mining work!
2015-12-28 15:44:48.713046 Got new merged mining work!
2015-12-28 15:44:48.923795 Got new merged mining work!
2015-12-28 15:44:49.716328 Got new merged mining work!
2015-12-28 15:44:49.927437 Got new merged mining work!
2015-12-28 15:44:50.720082 Got new merged mining work!
2015-12-28 15:44:50.930716 Got new merged mining work!
2015-12-28 15:44:51.728038 Got new merged mining work!
2015-12-28 15:44:51.934716 Got new merged mining work!
2015-12-28 15:44:52.731832 Got new merged mining work!
2015-12-28 15:44:52.938162 Got new merged mining work!
2015-12-28 15:44:53.735281 Got new merged mining work!
2015-12-28 15:44:53.941475 Got new merged mining work!
2015-12-28 15:44:54.738589 Got new merged mining work!
2015-12-28 15:44:54.944778 Got new merged mining work!

Shutting down namecoind resolves the issue.
You may check the stats on http://p2pool.611.to for details.

Btw.: Is it possible to payout merge mined coins? It would be cool if it would be possible to append the additional coins address to the username like the options for difficulty and packet size. Cool

◥◣◥◣
◥◣◥◣
611 (SixEleven) [SIL coin] following the spirit of the age,
you have to follow the edge of technology
◥◣◥◣
◥◣◥◣
PatrickMacH
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December 29, 2015, 05:45:25 PM
 #14077

been away for sometime.

where did the hashrate came from ?
Maybe cloudmining with P2Pool?  Wink

good to see p2p hitting blocks !
definitely! Smiley
I've had about 33% better revenue using P2Pool than using ghash.io during the last days. Furthermore the P2Pool.611.to has already merge mined more than 200 SIL. Cool

i'm updating mine to latest & will be back in action shortly.

does nmc merged mining still works ?

anyone having issues with s7 mining on p2p ? i am seeing much lower hashrates, abt 1 ths lesser GRRRRRRRRRRRRRRRRRRRRRRRR !


NMC merge mining works on my P2Pool only, if I deactivate the other sha256 coins for merge mining.
At the moment I'm merge mining 611 (SixEleven) which should offer a better profit Grin

◥◣◥◣
◥◣◥◣
611 (SixEleven) [SIL coin] following the spirit of the age,
you have to follow the edge of technology
◥◣◥◣
◥◣◥◣
cassini
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December 29, 2015, 05:56:30 PM
 #14078

Is BIP65 causing any trouble in regards to merged mining Bitcoin together with Namecoin and other sha256 coins like 611 (SixEleven)?
It could be that the target vs. _target issue interferes with additionally mining the 611coin. For merged-mining NMC this has been solved by https://github.com/p2pool/p2pool/commit/a6f3f9259a5ea4975e961946b7ad7fe941ac76be

Btw.: Is it possible to payout merge mined coins? It would be cool if it would be possible to append the additional coins address to the username like the options for difficulty and packet size. Cool
If you are talking about sharechains/Merged-Mining-2 then the anwers is: not yet. I hope lots of people pester forrestv or any other p2pool dev about MM2: https://github.com/p2pool/p2pool/issues/265  Wink
bney
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December 30, 2015, 08:42:22 AM
 #14079

When I attach a miner to the p2pool litecoin version, I get nothing but hash > target errors.

Things are set up according to instructions. Any idea what I am doing wrong?
kano
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December 30, 2015, 09:07:25 AM
 #14080

When I attach a miner to the p2pool litecoin version, I get nothing but hash > target errors.

Things are set up according to instructions. Any idea what I am doing wrong?
Mining altcoins.

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
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