Bitcoin Forum

P2Pool for CHNcoin on a 100mbit line with very low latency

New CNC server up and running.
Including all latest fixes. Payment shares fixed
DOA should be much lower, also for slow miners.

Old CNC pool

Mining User: Your CHNCoin Address
Mining Pass: Anything

cgminer:
cgminer --scrypt -o chncoin.no-ip.biz:9340 -u yourCNCaddress -p x -s 5 --expiry 5 --gpu-threads 1 --queue 0


cudaminer:
cudaminer -o chncoin.no-ip.biz:9340 -u yourCNCaddress -p x


Small tips for reducing DOA rate.

You can set your share difficulty by adding +0.0000xxxx to your CHNcoin adress:

yourCNCaddress+0.0004872

Recommend share difficulty:

Hash Rate (KHash/s)   Difficulty
1   +0.00000116
5   +0.00000582
10   +0.00001164
50   +0.00005821
100   +0.00011641
250   +0.00029103
500   +0.00058207
750   +0.00087310
1000   +0.00116414

Also make sure to set --queue 0 in your miner and --gpu-threads 1

Example:

cgminer --scrypt -o chncoin.no-ip.biz:9340 -u yourCNCaddress+0.00058207 -p x -s 5 --expiry 5 --gpu-threads 1 --intensity 12 --queue 0

Lowering the intensity just slightly might also reduce DOA a little bit

Test it out and let me know ;-)

FYI: With other pools like PushPool's there will still be a HIGH DOA / stale rate, you just wont see it in your local miner
So while your miner says 15 % stale, it might actually be 75% in PushPool log


Updates:
May 07, 2013, 12:03:05: New CNC server with all latest p2pool fixes. Tweaked to CNC with help from p2pool developer
May 06, 2013, 09:03:00: Updated p2pool version and interface again. Added more cpu power and memory to the server
May 06, 2013, 02:10:21: Network hardware upgraded, should handle DDOS better now.

DDOS away... Someone must be really bored. Rebuilt server until it was sorted out with clean install.
Another Major DDOS and hack attack. Moved p2pool to another and faster server
Another DDOS attack filtered out and restarted server
DDOS attack filtered out. Interfaced updated
All stats working and tweaking interface tonight for cleaner viewing.
Found a lot of blocks the lasts hours ;-)

Mine away

Update: Working on stats pages and nicer information page

Shares sent out for last blocks found

Pool is placed in the EU, Sweden to be more precise

pointing my nvidia card to your pool, let's see :)

Things a bit rough server side?

Not at all, why you ask ?

Running full speed, just paid out for newest block found

LP connects, but then I get no response from server? I'm using cudaminer,
 
-d 0 -i 0 -C 2 -l 32x5 -o chncoin.no-ip.biz:9333 -u CYpMCofuB5aEpdxdccvw27aXCTCXrzXfT1 -p x

After long poll activates I get an "HTTP request failed: failled to connect to chncoin.no-ip.biz:9333; no error" along with a hash rate around 80-89khs

anything to help?

 

Not sure, something on your side I think, maybe your firewall blocking cudaminer

Can you see http://chncoin.no-ip.biz:9333 ?

Changed payout to be even faster now

Finding valid block every few minutes now.

Point your CHNcoin miners in this direction
Server not even at 5% yet :-)

got a steady stream of coinage (little coins because of my hash power), but steady nontheless :)

joined with 1.6mh/s :)

How long did it take you to recive any?

20 mins or so? not too long :)

Just got my first now after 25min.

29% rejected, mostly at the beginning, running better now.

difficulty also jumped , so that's to be expected :)

Yes, difficulty jumped from 1 to 4.

We are still running with a decent hash rate through, so should still be finding blocks relative fast

What's the fee % if there is any?

it seems to be 4%

Currently (always been) at 3% to be correct ;-)

Hi,

just entered your pool.

Getting 80% rejects after 15min. Is this OK?

Greets

ImI

Is it possible to lower the share difficulty? it'll help with the reject rate.

Sure will have a look at it

I'm trying to create a new account, but can't find the "Register" on this URL http://chncoin.no-ip.biz:9333
How can I point the miner to my user if I didn't register? Should I use an address from my Wallet to mine as my username? If so, how can I specify a password?

Sorry my questions sound so noob, I just need to sign up LOL

There is no signup on p2pools, the easy part of it.

Just point your miner and use your CHN address as username and whatever password (password is not used for anything)

You will be paid out whenever a block is found based on your share.

Pool is currently getting DDOSed, looking into the matter.

Web stats are currently down, but mine pool still running without a glitch and sending out shares.

You can still mine away and get your shares, but wont be able to see the stats right now

-
All ddos ip's being logged and reported ;-)

All fixed and DDOS IP's filtered out.

Stats page also updated to something nicer

Oh cool, got it sorted... BTW, how often is a block being found atm?

Is it worthwhile with only 13 K/hash?

Thanks.

I've added some small tips to reduce DOA in main post.

Test it out and let me know the results

hi,

my miner crashed some hours ago.

i reconnected a hour ago, but havent seen any transactions since then.

i there any way to check if everything is OK?

greets

ImI

Everything should be fine.

Just had an DDOS attack and had to filter those IP's out
Also restarted server, but all shares where saved and reloaded so don't worry

ok, just at this minute a transaction came in.  ;)

i have got 50% rejected. is this a problem? i always thought that it makes no difference while p2p mining?

Good to hear.

See main post for tips on how to reduce DOA

But yearh your right. Stale rate is dependent on a lot of things and doesn't really tell the full story

gonna give this a try with my CPU, bout 60% stale but we'll see if it picks up and/or matters :)

I see you recommend expiry 10. Whats the advantage of this?

95% stale, even with your tips, not a pool for me im afraid :)

Currently being DDOS'ed

Setting up a backup / alternative pool
Will announce when up

Major DDOS and hack attempt

Had to move P2Pool to another server
New Server is a lot faster anyway ;-)

Everything back up again

mining with 2 radeon 7970 , 51 accepted for each card, very quick with the settings you wrote in first page, like adding --queue 0 and the difficult to the cnc address , 10 minutes mining, still no coin received on client ....

how much time it does require to get the coins on the client?

Check the last blocks on main stats page.
(top middle with blue text)

When a new block is found, there will be instant payout based on shares.

Since MH/s is still rising, blocks should be found faster and faster ;-)

ok thanks


still no block found since i began to mine, so still no coins.... i'm waiting

still having about 25% rejects  :o

Same here, i have had problems with the damn china coins since it was released.

I keep getting "Stratum from Pool 0 requested work restart"

Like every 2nd line.  Is there a way to stop this?

thanks!

this is not a trouble, me too

very good, first coins are coming now. thanks for support

Very good pool, don't be scared of the reject rate. I started getting coins about an hour or so in, think I will be here overnight.

pool is down  :'(

Pool up again

Still tweaking to avoid DDOS, apparently someone found a smart way to lag out the p2pool server

thx, it works for me

hi,

cgminer doesn't found the pool!

color B1
cgminer --scrypt -o chncoin.no-ip.biz:9333 -u Ce8REB3DYHbMHjmHieKaSie4nZFpNgD6Xp -p x -s 5 --expiry 5 --shaders 512 --intensity 11 --queue 0 --gpu-threads 1 --worksize 256 -g 1

I have done some mistake i suppose!!

tk for support

now i have troubles connecting... after some hours of good work

Me too^^

mined all night with it with good inc.

But i think it went too good. Seems hammered down.

yes me too. very good and now crashed again

you could try
https://bitcointalk.org/index.php?topic=195377.0

working good :)

I can connect, no rejects and 5 accepted after about 10 minutes (no payouts yet).

I use cgminer --scrypt -o chncoin.no-ip.biz:9333 -u my-address -p x -s 5 --expiry 10 --gpu-threads 1 --intensity 14 --queue 0

I do get a lot of HW errors: 10 in first 10 minutes. Is this normal or am I missing some settings above? Using a Radeon 6950, currently 335kh/s

And back up again finally

Another major attack. But don't surrender that easy :-)

Server also crashed, so used the time to rebuilt it with clean Ubuntu installation, additional memory and new p2pool

Mine away ;-)

.Note been stable for the next few hours and found some blocks..


 

Narken

1355 kh
33% rejects (A:100; R:33)
how to reduce rejects?

cgminer.exe --scrypt -o http://chncoin.no-ip.biz:9333 -u CKN2UFX7zrtPUCuFFTBhQ86ZfDjmDDDXiP+0.0015774 -p 12345 -I 18 -s 5 --expiry 10 --gpu-threads 1 --queue 0 --shaders 1792 --thread-concurrency 16000

+0.0015774 - diff 103

UPD: 24-40% rejects

I seem to be throwing MH at this pool without my wallet address ever appearing on the payout list - if it does, it stays for 1 or 2 payouts and is then gone.

same for me here. sometimes it stays for a couple of blocks but afterwars gone. strange stuff.

but sometimes it reappears and you will get much more of your normal amount.

@narken could you please explain this behaviour?

I'm auctually currently looking at this.

Seems like after noding up with rest of p2pool shares is not always calculated correctly.

I might switch us back to solo mining on single node again to prevent this

Please pm me your cnc address so I can check it in block explorer and logs

send

Thanks.

I have noticed other cnc p2pools have the same problem.

Seems to be a general problem with connected p2pools and cnc

Seems like sometimes payments from connected nodes is not accepted in the node network

try to that

-s 5 --expiry 5 --intensity 18 --queue 0

it`s the most suitable for my 2600kh/s rig... ::)

by the way, bter.com seems to be is not a honest exchange: only after several letters to support my 63CNC has revealed at account during massive down of exchange rate.


holly crap! pool is down again!

Intensity 18 makes it impossible to type this :)
And yes, down again, as is dontmine.me.

Any pools online at the moment?

DDOS knocked the entire network offline ;-(

Guess someone really don't like cnc p2pools, or some greedy cnc pool owner wanting people to switch to his/her pool
Well whatever, hope they have fun

Narken, yeah, same here. Would be interesting to see which pools are spared ....

Actually...I got 100/100 at home , wonder what my ISP is going to think if it will be hit by 8gbps :) almost worth trying hosting in the closet

One question, when i run cgminer and set "-s 5"... what meaning? I'm seeing SCRYPT-README and CGMINER Readme and i can't read nothing about this :S

actually acording to exchange rate - fast epic fail!  ;D

I'm getting like 90% stales from this node, at the same time there are other people getting ok shares, I have no idea what's going on.

Still waiting...

Short downtime while network hardware is being upgraded to better handle any potential DDOS attacks.

It shouldn't take long as everything is really to be switched over

Cheers, been loving this pool so far :)

Thanks, its back up

Network latency should also be more stable now

Another SCAM pool...

Scam pool ??

Not at all mate

As I told you as lot of times there is some know problems with cnc and pools

Check the other cnc pool threads, all cnc pools have seen this problem

And I can tell you, when you don't get paid out then pool fee is not paid out.
So we both loose when this happens rarely.
So trust me, its also in my interest to get it sorted out ASAP

So scam pool ? Not at all.

I think I might have found the problem with missing shares.

I will verify with other pools and return

Compiled newest p2pool code with known cnc fixes

Added the "official" cnc peers.

Lets see if this fixes payout problems.

Hey Narken, git repo is that and what are the "official" peers ?

Could you explain this a little?

I'm now using this cudaminer command, is this correct?

cudaminer.exe --algo scrypt -o chncoin.no-ip.biz:9333 -u CRWRgb1Gmrw8jjQbUeYAYhqpNjpB9avRH2+0.00029103 -p x -d 0 -i 1 -C 2 -l 80x2

What does the +0.00029103 actually improve?

Seems it's down again, server refused connection.

--
And up again, unstable?

No sorry, currently tweaking it. Have to restart p2pool server everytime, no way to reload scripts when started.

It should be rock stable with recent upgrades.

Ah, ok :) I also got my first payout *yay* +0.308 CNC :p

Could you give some more info on the "+....." parameter for the username?

Im not that familiar with cudaminer.

For share difficulty:
If you got low hashrate, it might help to ask the pool to get lower shares difficulty to solve or you would perhaps never submit any share.
But its not that simple again, since you would have to solve more shares

I will try to dig up some more precise information.

is something wrong with P2Pool?
there is incoming cnc in my wallet but p2p stats says nothing about blocks  ???

another one - my rejects level so high, about 40%. :'(
yesterday I had only about 25%

It works fine.


You need to refresh stats page in browser. Lastbock information is not updated live.
I will work on that later.

SO refresh stats page for newest blocks found ;-)

Also payments have been sent out for the last 12 hours ;-)
So everything is currently working correct


NOTE:
I'm currently fixing the p2pool code base, and will set up a new test server.
Payments should be more steady with added fixes recommended by p2pool devs.

New CNC test server up and running

http://chncoin.no-ip.biz:9340

Including all latest fixes and more even payment
It should solve the payout problems that most p2pools had.

Lets test it out and I will announce code so other nodes can follow.

It should also fix the DOA for some miners and slow miners

Oh and CHNcoin diff just doubled :-(

Is there a changelog for your testserver?

(Since I didn't really had payout problems?)

Yes there is

https://github.com/narken/p2pool-altcoins

Bob is also using my new cnc p2pool code base now.  It got much lower DOA for all miners

I'll change my connection to the test server this evening, not home :)

Don't bring the production one down ;)

I will point http://94.254.0.247:8800 to Narkens test net in a while.

Narken

Any chance you could get bbqcoin going on p2pool as well.
I've tried and failed miserably!

I will work on it when I get time tomorrow.

Update:

New CNC Server 2 based on new code is stable and ready for action

http://chncoin.no-ip.biz:9340/static/

See first post on how to connect

Isn't it easier to bring down the 9333 one and bring the new one up on the same port?

Would save firewall configurations and settings, and keep all miners running

I tried that, but its not possible due how to p2pool works.
Since share calculation and share ID is changed in new code it makes a lot of mess and DOA from old miners if I just switch over

Sp currently the old server
http://chncoin.no-ip.biz:9333/static/
is running on the old code base with wrongly share calculation.

and new one is running on new code base
http://chncoin.no-ip.biz:9340/static/

And since its p2pool, it doesnt matter that local hashrate is low, since we are noded up with rest of network using the new code base
I sent the new code base to BlastBoB and he's also using it.

 

Updated my private node to join your network.

Sure, just make sure your using same CHNcoin params as is my code base
https://github.com/narken/p2pool-altcoins (https://github.com/narken/p2pool-altcoins)

My p2pool thread with code base information:
https://bitcointalk.org/index.php?topic=198175 (https://bitcointalk.org/index.php?topic=198175)

Network hashrate is plumeting: http://cnc.strament.com/

First it was 4 days till retarget, then 6, now already at 8 days+, estimated difficulty 15.5 (coming from 20-ish before the increase)

Up 'n down

Yearh seems a lot left to other alt coins after the dif went to 42.

But cnc is still profitable if you ask me

There no new block since 7h00, is that normal ?

Let me check..

Everything seems to run fine.

To many people jumped to other coins after the Diff changed to 44

Like everything else there is luck involved.

We could hit 4 blocks in a row, or mine for few hours with no blocks.

http://cnc.strament.com/

Total hashrate down to 880Mh/s

New diff if changed was now 12
Estimated difficulty change   -72%

So network lost like 1/4 hash power and diff is still high

Thanks for doing the patch narken.
Beats the hell out of me blundering through it.

Now off to make my little pool!

Sharing is caring ;-)

I have a problem though.
I set it up for chncoin

Then I pointed 50kh of my crappy gpu at it with cgminer stratum.
Then I added around 25kh of cpu with minerd longpoll.

Cgminer appears to be working correctly.
minerd gets a few yays at first then all boos

my stats page shows 1kh total

something is horribly wrong!
any ideas?

Stats is based on average over 10min if I remember correct

cpuminer i never tried, so cant help there

It's had more than 10 mins.

It lives here.
http://81.17.30.115:8800/static/

It went up for a bit.....then down.

Maybe the VPS it's on is screwy.
I'll run it overnight and see i guess.

It seems really hard to find anything indeed :(

Let's hope the dif retarget is soon ;-)

Probably 5-6 days, http://cnc.strament.com/

Overnight it stayed broken on my vps.

So i set up a bbqcoin one locally.

Same problem.

Stratum appearing to work in cgminer but not actually showing more than 1% of shares in stats
Longpoll odd if i use --fix-protocol (keeps reconnecting to longpoll.)
cpuminer few accepted then everything reejected (it uses longpoll too)

I had a working p2pool from https://github.com/chrda/p2pool-chncoin.git but it only worked in longpoll mode
stratum had the same problem as this one. (1%)

Can anyone chime in with a solution?

Thanks

Nevermind it came good once the difficulty rose.
Still no idea why the chncoin one didn't

http://cnc.strament.com/ is down for 2 days - what`s wrong?
so, from where can I get the time to retarget?
official site says about 3.5 days to ratrget today, the day before...and... :D