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Topic: bitHopper: Python Pool Hopper Proxy - page 160. (Read 355689 times)

donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 24, 2011, 06:02:46 AM
No. It will be something like this:

Code:
{"poolspeed":53.375,"poolRoundShares":536936,"poolWorkers":139,"roundStart":1311459302}
legendary
Activity: 2955
Merit: 1049
July 24, 2011, 05:45:18 AM
is there an api? if so post an example.
is this the api?
---------------------------------------
Your userbar BBcode:


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donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 24, 2011, 05:32:50 AM
is there an api? if so post an example.
legendary
Activity: 2955
Merit: 1049
July 24, 2011, 05:25:49 AM
[btcworld]
name: btcworld.de
mine_address: btcworld.de:8332
api_address:                                       <-
role:mine
api_method:json                                  <-
api_key:poolstats,round_shares              <-
#CHANGE THIS
#http://btcworld.de/signup
user: x_y
pass: x

<- means that I don't know what to put in here...
donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 24, 2011, 05:12:43 AM
Uh-huh. And it only took 8 minutes too. I am clearly a comic genius.
sr. member
Activity: 314
Merit: 251
July 24, 2011, 04:51:03 AM
lol, I even expected a reply like yours.  Wink
donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 24, 2011, 04:38:27 AM
Quote
and the spaces around the colons in general are a bit inconsistent.

Yep, i get that too. It's called irritable bowel syndrome  Grin
sr. member
Activity: 314
Merit: 251
July 24, 2011, 04:30:49 AM
arsbitcoin has '=' instead of ':' and the spaces around the colons in general are a bit inconsistent.
donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 23, 2011, 10:09:46 PM
The other extreme btw. would be PPAS (Pay per all shares) - a pool then would always pay out for each and every share that was ever submitted. I call it "ponzi mining"! Wink


Plus after the first round it wouldn't be hoppable!  Grin
sr. member
Activity: 476
Merit: 250
moOo
July 23, 2011, 09:57:05 PM
in the new cfg.. arsbitoin is the only one with ' ' s around the username and pass.. I assume this is a mistake?
legendary
Activity: 2618
Merit: 1007
July 23, 2011, 09:39:59 PM
The other extreme btw. would be PPAS (Pay per all shares) - a pool then would always pay out for each and every share that was ever submitted. I call it "ponzi mining"! Wink

After some time however it might get less and less interesting as a new miner to join in such a pool - already with PPLNS some people are complaining that it takes some time until the true hash rate is valued (= until N shares have been mined while you were hashing at full power - everything before underestimates your hash rate and thusly your contribution).

In the end: Every system that starts at round borders is hoppable to some extent (as far as I read about slush's algorithm, he is hoppable too, but only until ~14% into the round afair.)

Should we btw. add configs for as many pools as possible (even non-hoppable ones or ones that fake/delay stats)? After all some people might still choose to mine there for whatever reason + bitHopper seems to develop into a nice statistical tool + providing automatic failover etc. as well with usefulness beyond pool hopping.


On a different note: Does someone know of some machine learning library for Python? I would need in the end to have it look at some data (collection of IP adresses + timestamps) and (based on previous data) determine into which category it falls...
newbie
Activity: 53
Merit: 0
July 23, 2011, 08:35:19 PM
@Aexoden -  PPLNS definitely won't have a 1.0 expected value, since if the round goes long, you shares are dead

Sometimes (60% of the time, with N = difficulty / 2 like mineco.in) you get nothing, but sometimes you get paid 5 times for a single share. It averages out to 1 over time.

As far as PPLNS's ability to be hopped, it doesn't really matter how large or small N is. You can pay the last 1000 shares only, and it still won't be hoppable. (And your expected value will still be 1.0, with a high variance, though not as high as that of solo mining.) PPLNS with N=1 is effectively solo mining (minus pool fees).
legendary
Activity: 1428
Merit: 1000
July 23, 2011, 07:39:50 PM
@Aexoden -  PPLNS definitely won't have a 1.0 expected value, since if the round goes long, you shares are dead

it has an expected value of one in a (very) long term view (if you really hop in/out randomly).

@streblo - first you post a great intro to the topic, then you post more details on PPLNS - thanks btw - now you say you *can't* hop PPLNS? My mind is reeeling, damn you! Why have you changed your mind?

he just misunderstand the system and thought N/2 shares means round_shares.
but n/2 shares means difficulty/2 shares - and with that pplns is just not hoppable. the window is to big

(please correct me if i am wrong)

donator
Activity: 2058
Merit: 1007
Poor impulse control.
July 23, 2011, 07:36:09 PM
The expected value of a share in a (properly implemented) PPLNS pool is exactly 1.0 (relative to solo or PPS).

Once a share is submitted, the fundamental question of its value is: how many blocks will be found before N more shares have been submitted. This can be modeled as a Poisson process with the expected number of blocks equal to N / difficulty. (If N is the difficulty, you'd expect to find one block. If N is twice the difficulty, you'd expect to find two blocks, and so on.) If (for example), N is one-half the difficulty, you'd expect a share to be paid approximately as follows:

  • No payout: ~60.65%
  • 1 payout: ~30.33%
  • 2 payouts: ~7.58%
  • 3 payouts: ~1.26%
  • 4 or more payouts: ~0.18%

Regardless of the value of N or the difficulty, the expected value will sum out to 1, however.

To make it relevant for this thread, PPLNS pools should be used only as backups, and definitely not as hopping targets.
You're completely right, PPLNS isn't hoppable. (Although PPLNS is subject to a share-withholding attack)

@Aexoden -  PPLNS definitely won't have a 1.0 expected value, since if the round goes long, you shares are dead

@streblo - first you post a great intro to the topic, then you post more details on PPLNS - thanks btw - now you say you *can't* hop PPLNS? My mind is reeeling, damn you! Why have you changed your mind?

sr. member
Activity: 302
Merit: 250
July 23, 2011, 07:08:09 PM
interesting talk on mtred ... http://www.reddit.com/r/mtred/comments/iu8d3/status_update_on_pool_hopping_protection/c26p2mz

edit: veeery long chat, you've been warned

Pool hoppers aren't the problem, you can choose to hop or not (or move somewhere where they will not be affected), its everyone else who's hashing, every time they get a new GPU I loose BTC!??!?! Why cant they all just stop hashing an let me have more income.
full member
Activity: 196
Merit: 100
July 23, 2011, 06:39:05 PM
Poolmunity is added.

kbsbtc:
Either delete eligius or wait. It should select the backup pool with the lowest percentage of rejections.

Look at localhost:8337/stats to see what it believes the rejection rate is.
newbie
Activity: 53
Merit: 0
July 23, 2011, 06:34:41 PM
Fixed.

THANKS! You are too fast haha. Last question I promise :p Any way to make arsbitcoin the main backup pool? Eliguis gives me a ton of stales.
newbie
Activity: 40
Merit: 0
July 23, 2011, 06:19:52 PM
Poolhop with 5GH of raw power.

Code:
[poolmunity]
name: poolmunity.com
mine_address: poolmunity.com:8332
api_address:https://poolmunity.com/api.php?server
role:mine
api_method:json
api_key:totalShares
#CHANGE THIS
#http://poolmunity.com/index.php?PHPSESSID=3iglliv6bvs1r8fvve993l5sd2&action=register
user: little.chinese
pass: nuts
legendary
Activity: 924
Merit: 1004
Firstbits: 1pirata
July 23, 2011, 05:57:34 PM
Fixed.

microsoft users would only be dreaming getting bug fixes at that speed Tongue
full member
Activity: 196
Merit: 100
July 23, 2011, 05:54:00 PM
Fixed.
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