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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2032545 times)
cr1776
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March 11, 2014, 10:50:56 PM
 #7961

Started to get this error message:

No bitcoind connection when block submittal attempted!

Anyone encounter this before? bitcoind appears to be functioning correctly and the p2pool node does not seem to have lost connection to it.

Looks like it might have been bitcoind. Restarted and have not seen it since.

Good. :-). I was going to suggest that, but luckily checked the next page!
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irrational
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March 12, 2014, 01:42:02 AM
 #7962

I'm just getting back into bitcoin, and used to use p2pool when GPUs were a thing. I have a small ASIC coming tomorrow (Antminer U2).

How foolish is it to mine on p2pool with _only_ 2 GH/s (gosh, it feels strange calling 2 GH/s "only")?

With such a small device I'm obviously not doing this professionally, but I'm also not sure what the variance will be like either.

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roy7
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March 12, 2014, 03:15:23 AM
 #7963

I'm just getting back into bitcoin, and used to use p2pool when GPUs were a thing. I have a small ASIC coming tomorrow (Antminer U2).

How foolish is it to mine on p2pool with _only_ 2 GH/s (gosh, it feels strange calling 2 GH/s "only")?

With such a small device I'm obviously not doing this professionally, but I'm also not sure what the variance will be like either.

The variance on 2GH on p2pool will, sadly, be massive. You could farm from sha256 alt coins though. Or else you might want to use a normal pool. (The proxy pool project I want to port to sha256 but haven't had time.)

RoyalMiningCo: Pools retired. Was fun!
irrational
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March 12, 2014, 03:27:02 AM
 #7964

I'm just getting back into bitcoin, and used to use p2pool when GPUs were a thing. I have a small ASIC coming tomorrow (Antminer U2).

How foolish is it to mine on p2pool with _only_ 2 GH/s (gosh, it feels strange calling 2 GH/s "only")?

With such a small device I'm obviously not doing this professionally, but I'm also not sure what the variance will be like either.

The variance on 2GH on p2pool will, sadly, be massive. You could farm from sha256 alt coins though. Or else you might want to use a normal pool. (The proxy pool project I want to port to sha256 but haven't had time.)

Ok, thanks.

I was kind of fearing that, but it's good to get confirmation. I'll stick with a regular pool for now.

What difficulty are p2pool shares?

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phillipsjk
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March 12, 2014, 03:34:54 AM
 #7965

Edit: pypy Does not work:
Code:
Traceback (most recent call last):
  File "app_main.py", line 72, in run_toplevel
  File "./p2pool/run_p2pool.py", line 3, in <module>
    from p2pool import main
  File "/usr/home/P2Pool/p2pool/p2pool/main.py", line 17, in <module>
    from twisted.internet import defer, reactor, protocol, tcp
ImportError: No module named twisted

Ok, got pypy to work. as far as I can tell, the difficulty is that pypy does not like c-optimized python modules. I guess the FreeBSD ports collection has it's modules c-optimized by default.

The above error was resolved by running the following as the P2Pool user:
Code:
$ easy_install --user twisted
Searching for twisted
Best match: Twisted 13.2.0
Processing Twisted-13.2.0-py2.7-freebsd-9.2-RELEASE-p3-amd64.egg
Adding Twisted 13.2.0 to easy-install.pth file
...

I then got a new error message when trying to run P2Pool:
Code:
Traceback (most recent call last):
  File "app_main.py", line 72, in run_toplevel
  File "./p2pool/run_p2pool.py", line 3, in <module>
    from p2pool import main
  File "/usr/home/P2Pool/p2pool/p2pool/main.py", line 17, in <module>
    from twisted.internet import defer, reactor, protocol, tcp
  File "/usr/local/lib/python2.7/site-packages/Twisted-13.2.0-py2.7-freebsd-9.2-RELEASE-p3-amd64.egg/twisted/__init__.py", line 53, in <module>
    _checkRequirements()
  File "/usr/local/lib/python2.7/site-packages/Twisted-13.2.0-py2.7-freebsd-9.2-RELEASE-p3-amd64.egg/twisted/__init__.py", line 37, in _checkRequirements
    raise ImportError(required + ": no module named zope.interface.")
ImportError: Twisted requires zope.interface 3.6.0 or later: no module named zope.interface.

In trial and error I tried easy_installing "zope.interface", "setuptools" and "argparse", but I am fairly sure this is what was needed:
Code:
$ easy_install --user -U  zope.interface
Searching for zope.interface
Reading http://pypi.python.org/simple/zope.interface/
Best match: zope.interface 4.1.0
Downloading https://pypi.python.org/packages/source/z/zope.interface/zope.interface-4.1.0.tar.gz#md5=ac63de1784ea0327db876c908af07a94
Processing zope.interface-4.1.0.tar.gz
Writing /tmp/easy_install-jN0eKs/zope.interface-4.1.0/setup.cfg
Running zope.interface-4.1.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-jN0eKs/zope.interface-4.1.0/egg-dist-tmp-LfYUtu
warning: no previously-included files matching '*.dll' found anywhere in distribution
warning: no previously-included files matching '*.pyc' found anywhere in distribution
warning: no previously-included files matching '*.pyo' found anywhere in distribution
warning: no previously-included files matching '*.so' found anywhere in distribution
Adding zope.interface 4.1.0 to easy-install.pth file

It did not work without the '-U' option, which forces an upgrade (from upstream). In both cases, the '--user' option means that only the user running the command is effected.

Now to test if CPU usage/latency actually goes down Smiley

Update: Results are inconclusive or slightly worse.

James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE  0A2F B3DE 81FF 7B9D 5160
roy7
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March 12, 2014, 05:12:29 AM
 #7966

Ok, thanks.

I was kind of fearing that, but it's good to get confirmation. I'll stick with a regular pool for now.

What difficulty are p2pool shares?

About 500K on average. Here's a 24 hour graph.

http://vtc-us-east.royalminingco.com/p2pool_share_history/diff_history.png

RoyalMiningCo: Pools retired. Was fun!
irrational
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March 12, 2014, 07:51:52 AM
 #7967

Ok, thanks.

I was kind of fearing that, but it's good to get confirmation. I'll stick with a regular pool for now.

What difficulty are p2pool shares?

About 500K on average. Here's a 24 hour graph.

http://vtc-us-east.royalminingco.com/p2pool_share_history/diff_history.png

Awesome, this is perfect!

Thank you.

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roy7
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March 12, 2014, 03:10:09 PM
 #7968

Awesome, this is perfect!

Thank you.

Some altcoin p2pool interfaces show a "time to share" but no BTC ones that I know of. You can use normal calculators though to put in your hash rate and the share difficulty to get an idea on how bad the variance is and if you are willing to stomach it. Smiley I have some smaller miners in my closest I've not touched in ages that are still happily hashing away with a raspberry Pi. I just check now and then they are still hashing and otherwise just ignore them.

RoyalMiningCo: Pools retired. Was fun!
phillipsjk
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March 12, 2014, 04:46:32 PM
 #7969

Some altcoin p2pool interfaces show a "time to share" but no BTC ones that I know of.

I am using the stock one on my P2Pool node, and it has it:
Quote from: casey
Version: 13.4-16-g5ee3172

Pool rate: 130TH/s (16% DOA+orphan) Share difficulty: 425000

Node uptime: 12.2 hours Peers: 6 out, 4 in

Local rate: 10.4GH/s (28% DOA) Expected time to share: 2.0 days

Shares: 0 total (0 orphaned, 0 dead) Efficiency: Huh

James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE  0A2F B3DE 81FF 7B9D 5160
roy7
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March 12, 2014, 05:19:20 PM
 #7970

I am using the stock one on my P2Pool node, and it has it:

Haha I'm dense. I'm so used to running public nodes it didn't even occur to be a normal miner running their own p2pool will have the time to share on there. Doh!

What I was thinking at the time was how multiple miners on the same public node can't see their personal "time to share" unless the interface breaks that out and there is a patch to add a couple of required API calls to make that happen.

RoyalMiningCo: Pools retired. Was fun!
smooth
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March 12, 2014, 11:34:22 PM
 #7971

The variance on 2GH on p2pool will, sadly, be massive. You could farm from sha256 alt coins though. Or else you might want to use a normal pool. (The proxy pool project I want to port to sha256 but haven't had time.)

Roy7 is a bit math challenged. The variance in absolute terms (meaning the amount of actual coins you will be above or below expectation) will be smaller the smaller your hash rate.

If you are a very small miner you will be getting very little output no matter what. If you want to help bitcoin and also have some fun with your mining, just treat your p2pool output as a fun raffle. Every once in a while (maybe once per week, possibly more or less often) you will get a nice payout. The rest of the time you will get nothing. Either way you won't make a lot. Just relax and have fun it with.

roy7
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March 13, 2014, 12:14:13 AM
 #7972

Well then perhaps I'm using terms wrong. By variance I was referring to the # of shares on the share chain (how often he'll get paid being the concern, not the amount). At his speed he'll rarely find a share, so often blocks will pay out with no payment to him at all. As opposed to a normal pool with a tiny but steady stream of credit.

I thought the rate at which you receive payments was normally what people refer to as "variance" when we're discussing p2pool, and the issue with smaller miners on p2pool is the amount of time you'll have 0 shares when blocks are found, resulting in no payment at all.

Obviously the absolute amount of coins will be larger with larger hash rates.

RoyalMiningCo: Pools retired. Was fun!
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March 13, 2014, 12:37:18 AM
 #7973

The variance on 2GH on p2pool will, sadly, be massive. You could farm from sha256 alt coins though. Or else you might want to use a normal pool. (The proxy pool project I want to port to sha256 but haven't had time.)

Roy7 is a bit math challenged. The variance in absolute terms (meaning the amount of actual coins you will be above or below expectation) will be smaller the smaller your hash rate.

If you are a very small miner you will be getting very little output no matter what. If you want to help bitcoin and also have some fun with your mining, just treat your p2pool output as a fun raffle. Every once in a while (maybe once per week, possibly more or less often) you will get a nice payout. The rest of the time you will get nothing. Either way you won't make a lot. Just relax and have fun it with.



However variance as a fraction of expectation is much greater when hashrate is lower, which I think is what roy7 meant, and what is generally noticed by most miners.

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irrational
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March 13, 2014, 01:10:21 AM
 #7974

The variance on 2GH on p2pool will, sadly, be massive. You could farm from sha256 alt coins though. Or else you might want to use a normal pool. (The proxy pool project I want to port to sha256 but haven't had time.)

Roy7 is a bit math challenged. The variance in absolute terms (meaning the amount of actual coins you will be above or below expectation) will be smaller the smaller your hash rate.

If you are a very small miner you will be getting very little output no matter what. If you want to help bitcoin and also have some fun with your mining, just treat your p2pool output as a fun raffle. Every once in a while (maybe once per week, possibly more or less often) you will get a nice payout. The rest of the time you will get nothing. Either way you won't make a lot. Just relax and have fun it with.



However variance as a fraction of expectation is much greater when hashrate is lower, which I think is what roy7 meant, and what is generally noticed by most miners.

This is exactly what I meant by variance. The effect of having an excessively low hash rate compared to difficulty such that normal variances in finding shares have a drastic effect on the overall payout frequency of a miner.

Luckily my Antminer U2 arrived today, and I also placed an order for 10 more :-D

Thinking 22+ GH/s should be sufficient for p2pool :-)

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March 13, 2014, 02:11:51 AM
 #7975

However variance as a fraction of expectation is much greater when hashrate is lower, which I think is what roy7 meant, and what is generally noticed by most miners.

Noticed, perhaps, if you are watching the pot boil. If you expect to make 50c/day and you make 0c/day, that looks like a big deal, but in reality your actual shortfall is still only 50c. Not going to hurt anybody.

Someone with a somewhat larger rig who expects to make $1000/day and makes $0/day (certainly possible when p2pool has 4+ day rounds), that's a $1000 shortfall, and may or may not be a big deal, depending on your financial situation.


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March 13, 2014, 02:22:01 AM
 #7976

Thinking 22+ GH/s should be sufficient for p2pool :-)

At 22 GH you will still have dry spells on p2pool. As I said, though, don't worry about it, you'll have big payoff days too. Look at it every week or two and you'll be happy with the results.
 
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March 13, 2014, 03:08:56 AM
 #7977

Noticed, perhaps, if you are watching the pot boil. If you expect to make 50c/day and you make 0c/day, that looks like a big deal, but in reality your actual shortfall is still only 50c. Not going to hurt anybody.

Someone with a somewhat larger rig who expects to make $1000/day and makes $0/day (certainly possible when p2pool has 4+ day rounds), that's a $1000 shortfall, and may or may not be a big deal, depending on your financial situation.

Low hash-rate miners get more dry spells because they may not have found a share within 3 days prior the pool finding a block. I was PO'd when my first two shares had a zero pay-out for that reason.

James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE  0A2F B3DE 81FF 7B9D 5160
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March 13, 2014, 04:01:40 AM
 #7978

Again, if the pool has a dry spell you are only losing payout on one share, which is really not that much in the way of coin. Bigger miners are losing out on many shares (if the p2pool doesn't get a block in three days). They have more to lose.

But if you really can't take the variance but still want to help p2pool, split off some of your hash rate to one or more of the bigger pools where you get (tiny, tiny) earnings on every few blocks. You'll get some small steady earnings with a nice boost when p2pool has enough luck to generate payouts.


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March 13, 2014, 03:43:52 PM
 #7979

p2pool.org down for anyone else? Miners seem to roll over to back up pools. Anyone have any details on whats going on?


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roy7
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March 13, 2014, 04:17:28 PM
 #7980

p2pool.org down for anyone else? Miners seem to roll over to back up pools. Anyone have any details on whats going on?

You might try one of Jude's threads or PM him. This is the general discussion thread for the p2pool software itself. p2pool.org is just a public node someone runs, not an official site of the p2pool developers.

RoyalMiningCo: Pools retired. Was fun!
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