Bitcoin Forum

Long-Polling and Stratum PPLNS

https://fc.dontmine.me/ (https://fc.dontmine.me/)

Pool has paid out over 970,000 FC! (15% of the current coins)

The typical stale rate for stratum a stratum user is 0.2-0.5%
The pool's combined average stale rate of stratum and LP workers is 1.3%

Los Angeles based server with DDoS mitigation.

See how to connect here: https://fc.dontmine.me/gettingstarted (https://fc.dontmine.me/gettingstarted)


To be a good pool citizen, registration opens/closes automatically when the pool/net rate is less than 25% to spread hash rate around

PPLNS with N=100000 (about 4 blocks)


It uses pushpoold and mmcFE front end ( thanks to https://bitcointalk.org/index.php?topic=178286.msg1867412 ) and now stratum support as well (thanks to viperaus)

I confirm it works and I have been receiving payouts to my FC address each time a block is found  ;D

I can not confirm it works as my payout address is not appearing on the pool site after over an hour mining.

Just by chance are you using GuiMiner?
Something tells me that + P2Pool is a bad mix right now.

I am using cgminer 2.11.4

Working peachy for me with cgminer also

no I'm using cgminer 2.11.3

Can you mine on other scrypt chains... BBQ, LTC?

I am mining for a while now at 400kh, found a lot of share but I did not get any payout yet. and I am not in the list..
my address is: 6zxsvnz4zRiWPthm7hBXeBRhJt1JLnh6j7
COuld you check what's happening ?

THanks

Yes I mine BQC and LTC regularly. The mining program shows shares being generated but my payout address is not showing up on the website, therefore it is not recognizing it for some reason.

My address is:  6u8RCArB9iwshk3xxToiCk3uXPGWDuSnR9  if someone would like to investigate.

I'm not showing up either
6naEoE47MgCm8wbHjyA38EHiEWmSvrjusc

For some reason I'm just getting:
Stratum from pool 0 requested work restart
Over and over again. Its been doing this for about 5 minutes.
Anyone know how to stop this and actually start mining? I wanna send my 800khash over :)

Thanks for your work on this Paul. I will link this thread into the FC post.

bump, very good pool.  I caqn confirm that I got paid.

Didn't get any reward either, though 14 shares were accepted (110 Kh/s rate)

getting plenty of payments, it's even valuable to mine with just your CPU instead of GPU, still getting about 1.xx FC every 20 mins or so :)

I've updated cgminer to latest version, now receiving rewards. Thanks!

I've been getting steady payouts from this pool, and blocks are being found every few minutes. Good job Paul21!

I also added a pushpool based pool here: http://fpool1.zapto.org:15005

So we can go from p2pool to here? yes?

Been throwing my 200kh/s for last night and today, loving it :)

Paul21, I've PM'd you with a question about my account.
Cheers :)

p2pool works fine and for some reason i cant connect to other pool?

Just some more info for the simple pool:

PPLNS is over 1,000,000 shares so it takes a while to get the payout from one share.

Some blocks weren't paying, but I manually kicked them through the pipes so there should be a fresh (2k unspent in the pool + 1.6k from me = 3.6k) payout to the pool. Hopefully it's smooth sailing from here.

Right now the pushpool is running 56 MH/s and p2pool is at 22 MH/s.

Seems like some Blocks are strangely stuck in the confirmation list.

What happens there?

Thanks, the transaction list was longer than the limit of 240, so I had to bump that up a bit. Payouts to 74 users and our unconfirmed block list is getting long.

Wow. That was fixed quickly. Thank you.
Even auto-payment is working like a charm.

Hi,
I keep having difficulty connecting with both reaper and cgminer to http://fpool1.zapto.org:28339. It doesnt seem to want to connect. I was connected fine earlier under the username goldylocks but when I restarted my computer I can no longer connect from either reaper or cg miner. Or if I do connect it'll only connect for like 5-10 seconds then say it cannot reach the sever? any advice?

Yeah, all the pools are down.

This one works perfectly.

http://fpool1.zapto.org:19327/static/

It's not working I tell you

Ah sorry, he must have changed the daemon rpc login and pass from what i read.

I was talking about the p2pool btw and it seems to work fine for me

why intensity 13? and also when I do mine with that pool I barely get any shares accepted mostly it just says requested work restart

-I 13 gives me 720 khashes on a 7970. anything else gets unstable.

do you get requested work restart often too? or is that just me?

I just verified the p2pool is working and the pushpool as well. This stuff is local to me, but on a second connection.

For p2pool the share difficulty is quite high (230k in cgminer, I don't know the conversion to FC diff). You'll see work restarts until you get a share. If you are relatively low power, I would recommend the pushpool, its share entry is much lower.

Not working for me.

I keep getting connection problems with the pool

http://i47.tinypic.com/2lwufwx.jpg

Any other pools?

Remember that he got 2 setups for FC

I am using the p2pool one, and i am getting paid every ~10 min :)

I'm connected to the p2p pool and in ~3 mins I've submitted 8 shares...is that normal? I'm using ~1.1Mh/s on it right now

I've got high load on the simple pool, I'm working on the issue now by assembling some spare hardware, and later by getting a server somewhere better than my apartment.

load average: 1.91, 1.98, 1.98 :-(

NONE of the pools listed anywhere in this thread work..absolutely none.

There will be a few minutes of downtime on the simplepool while I transition to the new machine.

Should be back up and going now, let me know of any new issues.

Thanks

load average: 0.26, 0.31, 0.18

Seems to be working again, although I am getting a large number of stale shares =(

How about now? I forgot to include the new block notifier into pushpool, but it should be popping restarts again.

Just some FYI
Host 1: (retired)
VirtualBox Debian 6.0.6
1/3 of AMD x3 450
512mb of RAM
Powerline Ethernet (Flakey)
Couldn't handle the pushpool load

Host 2: (current)
Debian 6.0.7
AMD x2 4200+
4GB DDR2 RAM
PATA HDD

(The tape keeps the coins safe)
https://i.imgur.com/Steo4fn.jpg

Bandwidth:
https://i.imgur.com/pgPaXMz.png


Host 3: (future)
Switch from PushPool to Dynamic Statum w/ Proxy for older miners
Debian 6.???
Atom D510 (might not last long)
2GB RAM
Public IP/Datacenter
I couldn't find any VPS with bitcoin friendly ToS, and based on CPU usage no one would want me anyway, so I found a cheap dedicated server to play with.

can't connect with miner to http://fpool1.zapto.org:28339 pushpool
is there any problem? i just exited miner to change command line setting then i was unable to reconnect to pool :(


p2pool works ok! using it that atm :)

fuk i just get home from work and my machine was not working, restarted it now

I can help you out,
2 offers, one a dedicated server or a VPS on a really large node with a i7 3930k CPU

Dedicated server :
Dual L5420 ( 8 cores @ 2.5 Ghz )
8 GB RAM
500 GB HDD
$50 (converted to BTC at the time of payout)
5 IPs

You could use this for multiple VPSes and host your pools on this

or

VPS :
12 shared cores of i7 3930k ( 12 cores @ 3.5 Ghz - 3.9 Ghz)
4 GB RAM
100 GB HDD
$30/month (converted to BTC at the time of payout)
1 IP

Cant connect to pool for feather coin on any pools

me too

yeah same here cant connect anymore

i am getting payout from p2pool, looks like it works fine


any word from the owner

I'll be taking the simple pool down for a few minutes to transition to yet another new host.

Please update your miners on the simple pool only to:
http://fc.dontmine.me:28339

Should be back in business again.

I had to raise the difficulty, the shares were too much for the database to handle (over 2k/second) so we're sitting at 1200~ shares per block now.  I reduced the PPLNS period to 100k shares (roughly 80-90 blocks).

I've polished some stats screens, fixed FTC->FC, and fixed the block links to go to the block explorer. Registration is temp. closed to distribute hash to some other pools.

http://fc.dontmine.me/misc/hashrate.png

I added stratum support thanks to viperaus

-o stratum+tcp://fc.dontmine.me:23334

Server down?

It looks like it is down for now.

"We have detected a large amount of inbound traffic, roughly 4.5 Gbps, heading towards 74.121.182.150 This address has been null routed for a minimum of 24 hours. "

I'm in on ipv6 anyway, with backups of the wallet locally, but I wasn't expecting this over a feathercoin pool ?_?

Yikes!  That's a big one.

Well I ordered some new hardware at Staminus, so hopefully the pool will be back in business tomorrow. I would open a backup on my local network but 4.5 Gbps vs 10mbit  :P

Well, they took out about 1/3 of the hash power -- maybe trying to slow difficulty while they try to catchup with mining..

Wow When did difficulty jump to 23.88?

The pool is down. Did anyone has any information about that ?

Thanks

Good luck! I'll back when your pool is ;-)

Mined many hours for nothing yesterday on the P2Pool, now here too. My luck...

Sounds like a DOS attack?

Switched my miners to featherpool.com until this pool stabilizes...still got it in the list.

Guys if you haven't, you may want to get a few different FC pool accounts and set up failover support in cgminer.conf (or try it p2pool maybe). Here's an example of my cgminer.conf file:


This will first try featherpool, then go to dontmine.me, then mine litecoin at coinotron if both of those are down.

Futile attempt.

I always have multiple backups and redundant solo mining configs.  Minimum 3 pools and two *coind's for all my rigs.

fc.Dontmine.me is still priority 1 in my config files.  You were the first stable FC pool I found, so you'll still get my hashes when you come back up.  :)

i have mined 18h and i didn't get any payout, last payout was 18h ago?

Any idea when the pool will be back up?

You can't stop the signal, Mal.

So was it a DDoS? Thats quite weird.

Yup, it was a DDoS, the host null routed my IP so it took everything down.

The server is back online, once your DNS updates you should be seeing everything.

Your fault, really - should have named it dont mind me  :P

Looking forward to your pool being restored - have had only good times mining this pool :)

The DNS seems pretty slow to update for some people, so the new setup is:
*.dontmine.me [199.192.76.186]

Same ports as before (23334 for stratum, 28339 for LP)

I've set up another pool.. FC pool!  Thanks, Paul, for you help with the BBQ pool!   

http://fhc.ub3rl33t.com/ (http://fhc.ub3rl33t.com/)

Excellent work, keep it up

Is the pool down again? ???

seems so

Seems like they just need to increase the maximum number of mysql connections.

Did i toppleded it over? It crashed minutes after I registered and started mining.

lucky i had a backup config for a 2nd pool to switch over

I'm getting " Too many connections "

Wonder if they are getting DoS'd. I believe a pool was DoS'd by someone making spurious miner auth attempts, tying up mysql.

It's probably someone trying to make a quick number of FC whilst they are still relatively easy by ddos'ing the other mining pools.

its not working. it says "Too many connections"

It should be good to go now.

Last night I blocked suspected botnet dodg, and I'm not sure, but my suspicion is (probably not intentional) that his bots hopped to another pool and then came back and kept getting unauthed messages which requires a mysql connection to check the auth (blocked). I installed memcached into the stratum server (probably should have on day 0) so that repeat requests don't require database checks and increased the connections supported by mysql so it should be okay now.

I'm thinking about adding a second work server. Where do you think it should go?

Options:
Chicago, NYC, FL USA
Europe
Asia

is there a way for you to see where the most connections are coming from?

Optimal places is  WDC or new york and netherlands.

If asian users you might consider east coast ( los angeles etc..)

Well, the admin of WeMineLTC.com said it's not botnet: https://bitcointalk.org/index.php?topic=187900.msg1963152#msg1963152

Well I didn't penalize the user; I paid all the due coins.
I had no proof but I operated on:
1) The user IP came from a hong kong edu domain
2) No email provided so no contact to verify
3) Single user represented over 200 MH/s on the then-net rate of 600-700 MH/s
4) Public opinion

Hmm, my round shares are oscillating anywhere between 0.8 - 1.35 FC / round, yet my hash rate is only usually changing from about 2300 - 2700 kH/s. Any idea why there is such a large variance in the round reward?

P.s. Mining continuously.

Pool hash rate increase I presume.

If the pool hash rate doubled, the round times half so your reward will half.

If you go to Stats > User Stats and then click on Pool on the top right of the graph it'll give you a nice shot of the rise in pool hash rate :D

Wow, expected earnings have dropped from 390 to 250 with the same hashrate in the space of a day :(

See the difficulty level today

Yeah that's ok, I understand why. Just saying it's a big drop :)

This pool is making quite a profit at 1.7MH/s worth of fees. ;)

Yeah, the easy mining is over, the net hash rate has jumped heaps in the past couple of days, people will soon start switching their rigs back to whatever they were doing before FTC.

Paul21, I've dropped you a message :)

I am having issues with your pool.

I used this with no problem right after FTC came out.

However for the last 5 hours I moved (now more like 6 hours) some workers back here.

The site says I am expected about 300 FTC per day.

So far I have gotten 3 FTC in almost 6 hours.

Just a heads up something is wrong - and this was the best pool imho.  Guess I am going to have to move these again.

:sigh:

pool is going up and down, what's going on?  ???

Yeah just noticed I've had nothing paid out and my threshold is only 20 FTC with my 4mh/s going at it...

Apparently emails have been sent hope this is not turn to scam...

My earnings are also considerably lower than projections would have me expect.  Also, the auto-payment is not working, had to go in and manual payout what I'd accumulated for the last 6 hours.

I'm working on it, I just patched the autopayout script. It was stopping on an error but I make it rhobust so it should payout. Someone put a bad address in and it broke it, but that shouldn't break everything on the script :)

I should have the stales fixed in a day or two.

stales and rejects just went way back up again  ???

I have this FTC pool in a --load-balance setup with an LTC pool using cgminer, it was working well, but for some reason today cgminer keeps dropping fc.dontmine.me and only mining the LTC pool. Has fc.dontmine.me been going up and down, or experiencing lag or similar today?

 

yes.  i think the server is beyond its limits at this point - anyone looking to join will be getting up to 20% stales with stratum.

registration should have been closed - imho

It seems like all the big FTC pools today have had their fair share of problems. I've had problems with dontmine, is-a-geek and a little bit on featherpool. featherpool seems the most stable currently, but will be back at dontmine.me when the problems are sorted.  Perhaps it's an attack on the pools? Or just over capacity? I don't know.

I have been having trouble with LTC pools as well today. If this persists for more than a week I am going to have to make my own private pools for reliability and put up with the pathetic slow block discover rate. :-(

Ugh. And the net hash was way down on LTC today. Are you seeing slower blocks or connection problems? I was on ltcmine.ru for a long time. Figured I'd switch back when FTC either balances or crashes. It's had a bit of a "too good to be true" launch, but hey I'm not hating. :D

How are the stales in the past 20 minutes? I just finished tweaking some things and I've got 200 accept 4 reject.

It's true, I had no idea I'd be pooling 1200 MH/s

MySQL Queries:
Total    per hour    per minute    per second
539 M   4.02 M   67.04 k   1.12 k

Block notifies are going out in about 50ms now, down from 2-35 seconds

If a new block coincides with the 1 minute window when the server takes a backup, it can be delayed a little bit which makes a stale trap.

Just curious, what sort of a hardware spec do you need to support a 1,200MH/s pool rate?

I was surprised too how much the net hash rate has rised since BTC-e added FTC earlier.
 
It was around 2,500MH/s jumped up to over 5,000MH/s now back down to just over 4,000MH/s, with a difficulty increase due tomorrow.

please at least close registration until it is fixed for 24 hours, thanks for your effort.

stales are jumping up and down for me - it is fine for 10 minutes, then terrible for 30 - I am way short of the 300 coins projected for 24 hours,

maybe try to cap the growth until there is more confirmation issues are fixed?

Edit #3: 300:4

Welcome back I hope. Thanks for your work. Donation to 3.8%.

I think it's fixed now, but I'll close it until it's solid for 12 hours or so.



It takes about 2 decent cores and 3GB of ram. But the real challenge is tuning mysql for low latency queries and dealing with misconfigured miners, botnets, and other trash that gets stacked against the server. One guy had like 800 open connections to my server  ??? have to fight that stuff.

I run on a dual xeon L5420 right now with 8GB of ram.
load average: 0.86, 0.68, 0.64

Mem:   8197352k total,  7893208k used,   304144k free,   161604k buffers
Swap: 16009208k total,    16908k used, 15992300k free,  5837600k cached

Bandwidth is like this, the spikes are the offsite backups going out.
http://fc.dontmine.me/misc/bandwidth.png

Paul, it is better than before but still problems for me -

I have sat watching various machines from the terminal (*eyes hurt*) - I see what is happening -

cgminer is fine for 150-200 or so accepted shares, no hardware errors occur, then there will be a cycle of

".......rejected

.........rejected

..........rejected"

between 6-15 times in a row, then

"failed to connect to stratum..."

it sits for a while then

"new block
..........accepted
..........accepted
..........accepted"

it starts over and each worker gets 100-150 accepted shares in row with zero hardware errors.

this behavior does not occur on give-me-ltc, coinotron, or other sCrypt pools with the exact same mining configuration.

is there some special configuration this site requires that I overlooked?  It is causing my overall averages to be horrible, where at other pools my hashrate is essentially constant when using stratum.

Thanks if anyone can offer solution.  Also this did not happen on this site when FTC launched.

---edit----

to be clear this exact same thing is happening across different rigs, with varying GPU hardware( mix of 6 and 7 gen), all AMD though.

I can confirm this, same thing is happening to me.  Everything fine on other pools and getting the exact same patterns of rejects on dontmine.me that peacefulmind described.

I have been getting about 5% rejects over the past few hours and the cgminer has been loosing connection to the stratum every half hour or so and I restart it.

My rejects also went up to 5%.

One trick to mitigate the stratum downtime might be to set the LP server as your backup pool. Though I do believe some shares are still lost when the stratum goes down.

I can't keep switching PPLNS pools and they all seem to be having problems, so I'm just living with the problems here.

The problem has to do with a python error that is breaking stratum at regular intervals on this pool.

I wish I knew more about server side that I could offer the fix.  I only know enough to be dangerous to myself and others.  ;)

However pretty sure the error has to do with code in these dir:

\twisted\internet\defer.pyo

\mining_libs\worker_registry.pyo

\stratum\socket_transport.pyo

Can we get an update on this situation?

There is a cycle where stratum breaks connection every 45 minutes to 80 minutes, miners lose a large percentage of shares, then server side it reaches out for a fresh connection, and we start from scratch until it breaks again.

Can you offer an update?  Thanks for the hard work and wish I knew enough about pool implementation to actually be of help.  The info of above is from connection logs and that is ALWAYS where it breaks server side, and it is server that builds stales, then breaks, then starts fresh.  Something is accumulating an error that builds then eventually kills stratum on your server before it resets itself.

I think the pool is losing money because of this too, and eventually miners will leave.

for those who get 5% rejects, are u guys using the stratum ??
im using the normal http://fc.dontmine.me:28339 and getting +- 3% rejects

pool is down up.

Yes. and that 5% doesn't count the dropped shares for when stratum shuts down. I had to go to a PPS pool. So far I'm at 1.3% stale on a longpoll.

Anyone reccomend another FTC server I have tried to stay due to draconian PPLNS - but this is crazy.

Cod where did you go?  PM would be fine too if u don't want to post it here.  :)

TYVM.

look at that pool rate yikes -

http://s12.postimg.org/xrbiasqb1/dontminefc.jpg

The share difficulty changed, so the pool has a higher hashrate, but the calculations just haven't caught up.

Well, I gave up on the 1.5k shares/second. It was just too much for stratum to run smoothly, and I tried a lot of different settings on the database.

So I scaled the share difficulty up 4x, 1/4 the load on the server, and everything should be good again, but that's what I thought last time :(

Unfortunately, my miner uses the connection that is being DDoS'd for CNC pool, so I can't calibrate the share/hash rates.

thanks for the update.

Cheers!

Just jumped on, will awarded shares still be proportional for the work -- if they are not calibrated?

All day long I have been getting massive drops in my k/h rate here in the range of 50-75% drops for several minutes at a time, and this is happening a lot of times. Its not just me either, the entire pool hashrates are doing this. I am currently on the longpool server because the stratum one kept disconnecting on me for several straight hours today (after working perfectly for several days straight) I hope this gets taken care of soon.

I think most of the pools are having DDOS troubles.. Good luck finding a stable one atm..

This is also my concern.

The numbers the front end site are showing are now off the charts crazy - I know difficulty went to ~120 for the entire network - however even with that change the displayed hash rates and rewards don't add up anymore after the changes.

Paul - would you comment on this?  Are rewards proportional to all the changes?  They do not seem to be - according to the estimates on the site and hashrates of various workers vs. actual work the workers are currently being shorted.

---edit---

To be concrete - the difficulty increased to 120, but my "estimated reward" stat is now about 1/3 of what it was before any changes.

That difficulty change on the network should not have reduced 24 hour reward so drastically.

I've probably missed a few places to tweak the display settings. I'll check on it, but yes everything is similar to round based pay per share; it gets divided evenly among the unpaid shares, it doesn't depend on the hash rate.

thank you.

appreciate your attention to detail and dedication here.  cheers.

I fixed the hashrate up a bit. It takes 25 minutes to settle now but it should be a lot smoother than before.

Thank you paul21 for all you work, and for quite informative news page on pool's website.
In contrast to some other pool owners, you're trying really hard to make the pool working nice and smooth, and a result - no such problems with stratum disconnects for several hours, and seems fare numbers at payout statistics page.
Thanks again for your work and good luck!

i second this :)

Thx for your efforts - really the best pull for now

Thanks for the solid server. I upped the donation rate.
I think everyone who appreciates should do the same.

Password recovery is not working, no recovery email after 15 min.

Found password after doing password reset, little does that help now.

Just woke up. So is Stratum good now? Been on longpoll since yesterday.

I'm receiving quite often 'Stratum connection to pool 0 interrupted' and when try switch to LP have a lot rejected shares :(
Is there any chance to fix that?

My rejection is below 1%. Good work!

I have a question: After I earned 100 FTCs at this pool, I found the pool fee is 0.2%? Why don't you charge 1-2% for such a great pool?

I just had a question, is the hash rate on the site sometimes different than what I am actually performing because all of my workers are way off. It says they all average 50 k/hash, and my total is like 250-300, but in reality I am mining witha  660ti on CUDA which nets 155 K/hash, my CPU which nets 50 k/hash and as of recently added a 7950 to another rig that is at 600 k/hash and I have a 570 that puls 215 but I cant figure out how to use CUDAminer and CGminer at the same time without them conflicting. So why isn't my hashrate accurate on the website? :\

since 12 hours the hash rates are totaly wrong. All statistics show massive Hashrate decrease in the last 12 hours. Is this just the front end or don't you get the shares from the workers (dDOS?)?
I do have the feeling that the earning are also not what I would have expected at the moment.

So I was right? The displayed hashrates are totally wrong, and possibly even the earnings?
Ugh...what are other pools, I need to be earning!

My hashrate have been wayyyy off. But my earnings are the same.
So i think its only the display hash that are off.

Happy mining errbody!

How can you calculate if your earnings are correct? Hash is way off for me lol

The miners are preferably shown as 114 kH/s or 57 kH/s where they should have 200, 360 and 560... Sometime they show the rate correctly, sometimes they don't.
In the payments section the unconfirmed earnings are very low for the blocks contributed to during the strange estimation of hashrates. However it looks like that it is only the estimation of payouts in the 'unconfirmed' section that is wrong - the payout seems to be done correctly after block confirmation.

Okay this makes sense, and are confirmations just taking forever, cause I been at this session for like 15 hours and have 900 unconfirmed shares, still awaiting.
But yes 114 and 57 are most common, sometimes one of my cards reads 200-400 (even though this card is mining at 600 lol)

Chiz, is you go to 'my account' - 'transactions' you can switch that view to 'unconfirmed' on the upper right corner of the list. There you can have a look at the block confirmation and your (likely wrong) estimated earnings for the blocks.
Since the pool is rather big it solves a lot of blocks and waits for many confirmations.

So are we not being paid out what we should be? I looked at other pools I know about like feathercoin-is-a-geek and featherpool, their hash rate is the same or less than this one. Any other pools not having issues but good rate of finding blocks?

My feeling is that the payout is correct, only the forecasts spread a bit con confusion amongst us.  ???

Is there like a super big pool I am unaware of? Dontmine.me, Feather-is-a-geek and featherpool are the only ones I know of and their average hash rate is 150.

The net hash has dropped significantly, and the blocking rate is way off the target; the coin is at a crawl.

Good news is difficulty is going to drop very low, bad news is since so many people have stopped hashing, its going to take 12 days for that difficulty to be reset. Kind of a double edged sword. I hope this time passes quickly, then the price of FTC will surely go up again, probably for a pump and dump but one would hope longer term.

gonna start pushing FC again when my new vid card arrives tomorrow, still seems viable :)

This pool seems to be having issues at the moment. The pool hashrate has dropped significantly, and most of my workers cannot connect.