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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2031528 times)
bitpop
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June 01, 2013, 01:13:18 PM
 #5661

1. Fuck bfl, suck bird dick

2. I'm using lancelots and I remember setting cg miner to submit stales. Am I punished by p2pool for submitting stales? These are the rejected ones .1s after stratum.

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June 01, 2013, 01:13:57 PM
 #5662

Although the BFL SC devices supposedly support the ZPX command that was added for MiniRig FPGA devices to allow it to work on shorter nonce ranges (and therefore wake up for new work much more frequently and therefore have much lower DOA %), neither cgminer nor bfgminer (I tried them both) use this command with the BFL SC devices and instead use the ZNX queue command.
Check the BFL forums. We asked them why they didn't implement the command because we tried it and it doesn't work on BFL SC devices.

They did not respond. I think BFL are too busy drowning in fail to respond to petty questions like these.

Ah, ok.  I just read their (apparently incorrect) documentation on the protocol for SC devices.  My bad.  

Given this, nothing can be done to make these devices work with p2pool effectively short of changes by ButterflyLabs.

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June 01, 2013, 01:17:55 PM
 #5663

1. Fuck bfl, suck bird dick

2. I'm using lancelots and I remember setting cg miner to submit stales. Am I punished by p2pool for submitting stales? These are the rejected ones .1s after stratum.

P2Pool actually asks for stales as they can be valid blocks. There's no reason it would punish you :-)

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June 01, 2013, 01:22:15 PM
 #5664

Ok so I had it set right. Yeah it would be dumb punishing something you could just hide. So where do stales and doa come from? A valid can just be late?

1. Fuck bfl, suck bird dick

2. I'm using lancelots and I remember setting cg miner to submit stales. Am I punished by p2pool for submitting stales? These are the rejected ones .1s after stratum.

P2Pool actually asks for stales as they can be valid blocks. There's no reason it would punish you :-)

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June 01, 2013, 01:59:34 PM
 #5665

Ok so I had it set right. Yeah it would be dumb punishing something you could just hide. So where do stales and doa come from? A valid can just be late?

stales (including doa and orphan shares) are when you submit a share that isn't included in P2Pool's sharechain. DOA are because your miner was working on obsolete dat, orphans are because some other node managed to publish a share at roughly the same time than yours and the P2Pool network chose his share instead of yours.
Both type of stales don't reduce your income unless you have more than the average miner (as both can generate blocks which will have their income distributed to everyone).

There's a bit more info in the guide in my signature and on the wiki.

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June 01, 2013, 02:08:22 PM
 #5666

Thanks. I'm not even sure submit-stale does anything in cgminer any more, maybe it is the p2pool telling cgminer to submit stales. either way, glad its recommended.

Ok so I had it set right. Yeah it would be dumb punishing something you could just hide. So where do stales and doa come from? A valid can just be late?

stales (including doa and orphan shares) are when you submit a share that isn't included in P2Pool's sharechain. DOA are because your miner was working on obsolete dat, orphans are because some other node managed to publish a share at roughly the same time than yours and the P2Pool network chose his share instead of yours.
Both type of stales don't reduce your income unless you have more than the average miner (as both can generate blocks which will have their income distributed to everyone).

There's a bit more info in the guide in my signature and on the wiki.

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June 02, 2013, 09:38:56 AM
 #5667

Thanks. I'm not even sure submit-stale does anything in cgminer any more, maybe it is the p2pool telling cgminer to submit stales. either way, glad its recommended.
cgminer respects the pool message telling it to submit stales.

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June 02, 2013, 03:01:21 PM
 #5668

yah, it 'makes' it submit stales, since p2pool stales arent network stales

and orphans are much worse than DOA, in most cases DOA is just a matter of your latency to wherever you are mining at, orphans means wherever you are mining at isnt propagating it's shares fast enough (or occasionally you'll get screwed when someone that was rly slow happens to get two in a row)

i use more resources using my home computer for essentially the same % of lost shares as I get mining at nogleg.  they're just orphans instead of DOA.   but if you're some person that wants to mine at a remote pool, you certainly wouldnt want to mine at my home pool getting all the orphans, since then you'd still get just as many orphans + the DOAs associated with your latency

Dacentec, best deals for US dedicated servers. They regularly restock $20-$25 Opterons with 8-16GB RAM & 2x1-2TB HDD's (ofc, usually lots of other good stuff to choose from).  I did a Serverbear benchmark of one of my $20/mo Opteron (June last year), it's here.  Have had about a half dozen different servers with Dacentec, & none have failed to sustain at least 40MB/s (burst higher). My favorite is a 12-month rent-to-own ZT Systems 2XL5520 16GB 2x2TB SATA for $40/month (got lucky with the 'off-brand', haven't seen a RTO 2xL5520 for under $50/mo since -- at least for monthly contracts).  wholesaleinternet.com has some ancient 2-core intel CPUs @ $10/mo sometimes (I got an Intel Core 2 6300 @ 1.86GHz, with a 250GB HDD with 46000 hours on it, LOL. $20 @ Dacentec is much better, if you can grab one). joesdatacenter.com (same location as Wholesale Internet) also occasionally has specials (or if you don't want to wait, it has an AMD Opteron 170 @ $16/mo).
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June 02, 2013, 05:47:04 PM
 #5669

Graphs on http://p2pool.info/ are not working  Sad

UPDATE: fixed

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June 02, 2013, 09:22:25 PM
 #5670

Is there anyone willing to make BE Blades working with p2pool?
Just to remind Smiley Last forrestv patch to stratum mining proxy make it working now nicely with p2pool, (c)gminer or any other now can connect to stratum proxy and to p2pool. But BE Blades still not working that way Sad
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June 03, 2013, 01:42:41 AM
 #5671

Is there anyone willing to make BE Blades working with p2pool?
Just to remind Smiley Last forrestv patch to stratum mining proxy make it working now nicely with p2pool, (c)gminer or any other now can connect to stratum proxy and to p2pool. But BE Blades still not working that way Sad

I wouldn't hold my breath: although they have mining software on board, AFAIK there's no way to update it if the problem lies on their end (which it seems to be if other software can use the stratum proxy with p2pool fine). You would be better off asking friedcat for help than p2pool devs.

Last time someone pointed his fingers to p2pool as a source of problems with an ASIC device, the problem was the ASIC device itself (BFL SC with no support for interrupting work or short nonce ranges). There are devices that simply won't work or work properly with short intervals between LPs or stratum work restarts.

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June 03, 2013, 01:58:08 AM
 #5672

This may be a good place to ask
 Looking for a developer to patch bytecoin https://bitcointalk.org/index.php?topic=223904.0

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June 03, 2013, 01:15:09 PM
 #5673

Is there anyone out there running p2pool on Amazon AWS for themselves and a few friends? How is performance/efficiency? What instance size do you use and what is the monthly cost? I was starting to test this out on the free tier as a proof-of-concept, but the free tier can't even keep bitcoind up with the memory usage.
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June 03, 2013, 02:20:01 PM
 #5674

I tried running my jalapeno on a segregated p2pool network (2 nodes only, both nodes on computers I control, no outside connections permitted).

The problem I've been observing using the jalapeno with p2pool is definitely revolving around how the jalapeno returns work. It doesn't look like valid work is returned as soon as it was found, but sending back multiple valids at the same time.

The effect is, the first valid has a good chance of being a valid share, but the rest of the valids sent after it are always rejected.

While they may still be a valid block, I think the same problem arises there too. First valid solves the block, the rest of the valids are rejected as they won't build on the block the first valid solved. Granted, this won't happen often, but it will happen.

The problem when it comes to p2pool is, the miner using the jalapeno, might not get accurate credit for the amount of work they're doing, just because the jalapeno won't abort the work it is doing to start new work, so those miners that are using equipment that will do that, will always have an edge just because they will be more responsive to change.

As the jalapeno keeps mining for more results after it already found a valid result, and not yet sending it along, it is just wasting power at that point.

Just my observations this past week.

Protocol-wise, it seems to behave, it just doesn't appear to handle valid results efficiently.

All that said... after almost 2 years of being stuck at ~160MH/s, now mining at ~5.2GH/s? I don't quite believe I'm watching my own stats yet, thinking I'm being punked by a feed of someone else's screenshots. Smiley This is taking some getting used to. XD

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June 03, 2013, 07:03:46 PM
 #5675

Is there anyone out there running p2pool on Amazon AWS for themselves and a few friends? How is performance/efficiency? What instance size do you use and what is the monthly cost? I was starting to test this out on the free tier as a proof-of-concept, but the free tier can't even keep bitcoind up with the memory usage.

Yeah I have done it with
Memory optimized    m2.xlarge    64-bit    2    6.5    17.1    1 x 420    -    Moderate

using 10gig as a ram drive  for bitcoind.

But it was getting close to/was using all the memory running two bitcoinds.

So was contemplating Memory optimized    m2.2xlarge    64-bit    4    13    34.2    1 x 850

If you dont need rock solid uptime, you can do it on the cheap using spot instances using your own ami and a ebi volume for persistent data for p2pool and first bitcoind data.

Without volume charge your looking at around $25 to $30 for the 17gig memory one and double that for the 34gig memory one a month for usa. Other pricing areas you'll have to check.

With the second bitcoind  in ram drive the getwork latencies were pretty low  and was about 115% efficiency.

Was getting jumps now and then but, might have been the instance running out of memory, didnt look into it much more.
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June 03, 2013, 10:24:16 PM
 #5676

Mine below in sig is running on aws
try min, its fee free

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June 06, 2013, 07:53:57 AM
 #5677

Hi all,

Every now and then on my Litecoin P2Pool node I get the following messages :

"Failure: twisted.internet.error.ConnectBindError: Couldn't bind: 24: Too many open files"

I've adjusted my OS settings to the following to allow more open files but still seems to be happening every now and then.
* soft nofile 16384
* hard nofile 65536
* soft nproc 4096
* hard nproc 16384

If anybody could point me in the right direction it would be greatly appreciated.

F.
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June 06, 2013, 07:12:12 PM
 #5678

After upgrading bitcoind to 0.8.2, p2pool seems rock solid and has been up for over a week without a restart. No more big jumps in latency.

However it seems to have stopped finding blocks and my CGMiner hasn't found a block in two days so consequently my payout has fallen to 0 and stayed there for at least a day.

I mine at 275 MH/s and normally have a payout in the range 0.008 to 0.015 and probably find around 5 blocks a day. It seems highly unlikely that I would go 2 days with nothing and that my payout would fall to zero. Has anybody else experienced this and could there be a bug in p2pool as a result of running for so long without a restart ?

Thanks
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June 06, 2013, 10:53:22 PM
 #5679

After upgrading bitcoind to 0.8.2, p2pool seems rock solid and has been up for over a week without a restart. No more big jumps in latency.

However it seems to have stopped finding blocks and my CGMiner hasn't found a block in two days so consequently my payout has fallen to 0 and stayed there for at least a day.

I mine at 275 MH/s and normally have a payout in the range 0.008 to 0.015 and probably find around 5 blocks a day. It seems highly unlikely that I would go 2 days with nothing and that my payout would fall to zero. Has anybody else experienced this and could there be a bug in p2pool as a result of running for so long without a restart ?

Thanks

Probably the recent rise in difficulty. I think we are all feeling it.
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June 08, 2013, 06:36:53 PM
 #5680

So, how 'bout that crappy streak of bad luck these past few days, eh? Undecided

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