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Author Topic: [2+ EH] Slush Pool (slushpool.com); World's First Mining Pool  (Read 4323802 times)
AniceInovation
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November 25, 2011, 05:11:50 PM
 #4601

Boy, luck isn't for this sides in the last hours Cheesy

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November 28, 2011, 11:11:04 PM
 #4602

Hi,
I am getting this error message when running cgminer against the slush pool.

XXX longpoll failed for http://api2.bitcoin.cz:8332:8404, sleeping for 30s

Is the pool using port 8404 for longpolls instead of a /LP/ like path.
In that case cgminer needs to be altered a little bit.
if not, well then where can the 8404 come from?


Best
//GoK

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November 29, 2011, 12:59:18 AM
 #4603

Are you using the latest version of CgMiner?
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November 29, 2011, 01:17:29 AM
 #4604

 LP connected to api.bitcoin.cz:8407

https://www.buytrezor.com?a=55c37b866c11   well sir, I like it!
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November 29, 2011, 08:40:28 AM
 #4605

Are you using the latest version of CgMiner?

Yes, i am using 2.0.8

LP connected to api.bitcoin.cz:8407

Hmm, it makes sense if cgminer cant handle port based LP's but why am i getting 8404 if the longpolls are done on 8407?


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November 29, 2011, 04:01:24 PM
 #4606

I just recovered pool from some strange state where it was rejecting shares for some miners in last few hours. It should be fine now.

Hi, my average hashrate is usually around 2200 Mhash/s, but the screen says 596 Mhash/s. Could it have something to do with that problem?

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November 29, 2011, 04:58:37 PM
 #4607

XXX longpoll failed for http://api2.bitcoin.cz:8332:8404, sleeping for 30s

Is the pool using port 8404 for longpolls instead of a /LP/ like path.

Looks like cgminer messed the parsing of URL, for some unknown reason. Port 8332 is "getwork" api, ports 8401-8410 are for LP broadcasts. That HTTP header for LP in getwork response is providing full URL for 8404 port. Can you report that to cgminer author?

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November 29, 2011, 05:01:01 PM
 #4608

Hi, my average hashrate is usually around 2200 Mhash/s, but the screen says 596 Mhash/s. Could it have something to do with that problem?

Average hashrate is calculated from submitted shares in last 10 rounds. It can be explained by some connection issues or if your miner was offline for some time. Did you have some connection issues today?

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November 29, 2011, 09:34:12 PM
 #4609

XXX longpoll failed for http://api2.bitcoin.cz:8332:8404, sleeping for 30s

Is the pool using port 8404 for longpolls instead of a /LP/ like path.

Looks like cgminer messed the parsing of URL, for some unknown reason. Port 8332 is "getwork" api, ports 8401-8410 are for LP broadcasts. That HTTP header for LP in getwork response is providing full URL for 8404 port. Can you report that to cgminer author?

Done Smiley thanx

//GoK

Hi,
I am using cgminer 2.0.8 and asked this question in the slush pool thread:

XXX longpoll failed for http://api2.bitcoin.cz:8332:8404, sleeping for 30s

Is the pool using port 8404 for longpolls instead of a /LP/ like path.
In that case cgminer needs to be altered a little bit.
if not, well then where can the 8404 come from?

And i got the answers that it does but it seems like the path parsing on cgminer is not working correctly?


XXX longpoll failed for http://api2.bitcoin.cz:8332:8404, sleeping for 30s

Is the pool using port 8404 for longpolls instead of a /LP/ like path.

Looks like cgminer messed the parsing of URL, for some unknown reason. Port 8332 is "getwork" api, ports 8401-8410 are for LP broadcasts. That HTTP header for LP in getwork response is providing full URL for 8404 port. Can you report that to cgminer author?

Best
//GoK


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November 29, 2011, 11:32:17 PM
 #4610

I was just wondering if anyone else had noticed the same pattern I have. It seems to me that every time the difficulty level drops we get a whole mess of multi-hour blocks immediately after. I'm sure of it on the last three difficulty drops, wasn't paying enough attention previously. Is this just my imagination or have others noticed it as well?

Thralen

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November 29, 2011, 11:42:33 PM
 #4611

I was just wondering if anyone else had noticed the same pattern I have. It seems to me that every time the difficulty level drops we get a whole mess of multi-hour blocks immediately after. I'm sure of it on the last three difficulty drops, wasn't paying enough attention previously. Is this just my imagination or have others noticed it as well?

Thralen

Not directly answering your question, but I think this might be relevant to a lot of similar question.  Additionally, please do not take this post as an attack on your question/you as a person, it's just something I've wanted to get off my chest as I lurk the threads for the past month.

<Rant>
Your brain lies to you.  All day.  Every day.  It makes you see/notice things that aren't there because of "patterns" that may or may not exist.  The human brain is determined to create order out of chaos in order to line independent events up.  There's some great lectures out there, including one by Richard Dawkins, that talk about the brain's predisposition to applying 'models' to information and sensory inputs.  In the same way an optical illusion can make you see things that aren't there, you can see patterns in a few points of data, often times overlooking contradictory data simply to help the model fit in your head.

Now somebody could come in the very next post and demonstrate a trend of the pattern you recognized, pointing out it has been been consistent for the past 10, 20, 50, or 100 iterations.  It may actually be a problem and your post brings it to somebody's attention.  But hopefully somebody reads this and the next time they think they notice a pattern, they take some extra time to think about it and do some research on their own for a significant data sample before talking out patterns.
</Rant>

RIP BTC Guild, April 2011 - June 2015
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November 30, 2011, 12:04:23 AM
 #4612

eleuthria - lol :-)

Thralen - No, there's no reason to have "bad luck" when new difficulty come. Your observation is done from very small data sample. I remember that few months ago it looked that exactly the oposite is happening - pool has been finding many blocks after many difficulty changes with the luck like difficulty didn't changed :-).

Yes, having a lot of multi hours blocks in the line and in the time of difficulty change looks "fishy", but there's nothing wrong with the pool. Pool algorithm even dont care about difficulty change, so there's no space for some bugs in the code.

I was just wondering if anyone else had noticed the same pattern I have. It seems to me that every time the difficulty level drops we get a whole mess of multi-hour blocks immediately after. I'm sure of it on the last three difficulty drops, wasn't paying enough attention previously. Is this just my imagination or have others noticed it as well?

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November 30, 2011, 12:06:46 AM
 #4613

I am familiar with the brain trying to quantify and compartmentalize things, thereby looking for patterns to do so. That is why I asked, in my previous post, if I was imagining it or if it was an ongoing pattern.

If anyone knows where I can locate a list of all of Slush's pools blocks going back a ways, I'll even be happy to do the simple math and run off a list of blocks solved in the 24-48 hours after a difficulty drop going back for say: 10, 25, 50, and 100 instances to see if it is simply luck or if there might be an issue. I simply commented to myself about it a few difficulty drops back where I noticed the number of total solved blocks taking off but those on Slush's pool going slower than I imagined the recent average to have been.

Sorry to trigger a rant, you'll note I didn't post after noting it happen once but waited for three instances. Once can be chance, twice can be coincidence, but I begin to wonder with three in a row.

Note: Not implying anything here Slush, you'll note that even after the observations I'm still mining on the pool. Caught your reply also, but if the data sample is available (block list that includes time solved and block #) I'll still take a look out of curiosity.

Thralen

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November 30, 2011, 12:11:59 AM
 #4614

Thralen: You can pick block stats in XLS from there: https://bitcointalk.org/index.php?topic=48889.0 It cointains around 8000 rounds from my pool. Its not up to date, but enough to do the stats.

But I can save your time telling you there's no reason to have a bad luck on diff change. But it's your time and thus your choice Wink.

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November 30, 2011, 12:54:31 AM
 #4615

Slush: I may well do that, still trying to find out if I am imagining it or if it is occurring. Alternatively I may take the lazy route and simply jot down the 24 hour luck percentage 24 hours after this difficulty drop and any future ones. *shrug* Like I said, I am more worried about whether my imagination is getting the better of me than I am as to if it is occurring or not. Huh

Thralen

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November 30, 2011, 12:55:24 AM
 #4616

Hi, my average hashrate is usually around 2200 Mhash/s, but the screen says 596 Mhash/s. Could it have something to do with that problem?

Average hashrate is calculated from submitted shares in last 10 rounds. It can be explained by some connection issues or if your miner was offline for some time. Did you have some connection issues today?

What struck me is that the hash rate in my account screen went up and down without relation to the actual performance of my miner. Anyway, now it's catching up. Thanks for your kind help. (It must have been that I've been offline for some time.)

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November 30, 2011, 05:14:24 AM
 #4617

How is luck calculated? Wat is the standard it is compared against? Because it is a very unlucky day.

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November 30, 2011, 05:20:25 AM
 #4618

How is luck calculated? Wat is the standard it is compared against? Because it is a very unlucky day.

Luck is determined by how many shares over or under the current difficulty it took to solve a block.  The difficulty should be the average number of shares needed to solve a block.

More shares than difficulty = bad luck
Less shares than difficulty = good luck
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November 30, 2011, 05:35:03 AM
 #4619

Eveofwar is right, it's calculated from block shares and difficulty from the time of the block.

Yes, current block rate is pretty weird, I hope it gets better soon :-).

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November 30, 2011, 06:43:02 AM
 #4620

How is luck calculated? Wat is the standard it is compared against? Because it is a very unlucky day.

Luck is determined by how many shares over or under the current difficulty it took to solve a block.  The difficulty should be the average number of shares needed to solve a block.

More shares than difficulty = bad luck
Less shares than difficulty = good luck
Thanks for answering.
So does that mean 100% is actually 50% of the difficulty (in shares)?
If I have the exact amount of shares as difficulty what would the % be?

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