I didn't look to see if it is already there for more than 2 seconds, so forgive my lazyness. I'm in a hurry and didn't want to let this one slip; Can we get a weighted BTC/{your 2nd favorit currency here} exchange rate too? Something like we get for 24h on http://www.taters.net/cgi-bin/btc/matrix.pl?axisinc=0.01 that unfortunately only covers mtgox trades. If we could sum all the trades done in all the "known" exchange sites for each of the pairs (although even just BTC/USD would be very helpful) and then find the average given the volume, we would have a very solid "official exchange rate" that merchants could use, one that would soften the cyclic movements of the market a bit. And why not do that for hour, day, week and month? This way getting automated BTC pricing on USD based sites could become more dynamic with some confidence. |
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I'd probably be going for Ubuntu, the latest LTS version, whichever that is.
With regards VPS processing, it wont be continuos, but in requests. A request comes in, some signatures need to be made or verified, a reply is made, done. That work well enough on the vps? Also, can I have 2 cores?
That would work fine with the VPS, I believe. I can't give you a specific number of cores but I could give you core affinity, disallowing others from using those cores. But in the end I believe the best thing would be to just allow you to fully take advantage of the 4 core system (minus the VM penalty) when needed. This all boils down to not allowing other VPSs on the same machine to hog the system, which should be a simple case of giving your kvm process a better niceness value. The multi core performance of KVM is not completely linear, though, and the only way to go about this is by doing real tests. If I provide you with a VPS instance are you equipped to run performance tests? Nope, not for a while. At this point in time we would be working on basic functionality. Performance issues due to traffic would be a great problem for us to have. I'm just trying to find out what my options would be if we did have to scale up. To give you an idea of what you'd be up against competition wise, the alternative kalyhost has is their power option vps (although we may possibly go for the medium option) https://www.kalyhost.com/vps.htmlYeah, I can beat kalyhost in both price and performance, although I'm pretty sure you will not need the power option, as you hint. |
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Dedicated server pay-as-you-go quotes from xf2.org: - 120 BTC / month:
AMD X2 3400+ Dual-Core, 2x 1.8 GHz, 2x320GB SATA II, 4GB RAM, 100 Mbps shared unmetered - 150 BTC / month:
AMD X2 3400+ Dual-Core, 2x 1.8 GHz, 2x500GB SATA II, 6GB RAM, 100 Mbps shared unmetered
Discounts available if you pre-pay for a year, instead of month-to-month. Email info@exmulti.com if interested. I'll check stock and see if any older, cheaper servers are available. This will always be better than what I can get you dedicated, so unless you want to give the VPS a try first I'd go for it  |
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I'd probably be going for Ubuntu, the latest LTS version, whichever that is.
With regards VPS processing, it wont be continuos, but in requests. A request comes in, some signatures need to be made or verified, a reply is made, done. That work well enough on the vps? Also, can I have 2 cores?
That would work fine with the VPS, I believe. I can't give you a specific number of cores but I could give you core affinity, disallowing others from using those cores. But in the end I believe the best thing would be to just allow you to fully take advantage of the 4 core system (minus the VM penalty) when needed. This all boils down to not allowing other VPSs on the same machine to hog the system, which should be a simple case of giving your kvm process a better niceness value. The multi core performance of KVM is not completely linear, though, and the only way to go about this is by doing real tests. If I provide you with a VPS instance are you equipped to run performance tests? |
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I'll have a quote for you early next week, but I believe it will be in the 150~200 coins / month (I assume you'll want to go monthly given the huge fluctuations in the exchange rate). Prices gets lower for longer term prepayment, of course.
The VPS price is more or less bound by memory slice, and I can get you an equivalent VPS for 25~50% of the dedicated price. As for the CPU issue, unless you have a sustained requirement for intensive CPU usage you will probably never even feel the performance difference in the VPS. What OS are you targeting, btw?
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The full story is I have been "contracted" by a local hosting company to create a VPS managing system, and I have convinced the owner to allow me to attempt to run a bitcoin driven framework. But in the end I'll be collecting bitcoins and he has the option of charging me the bitcoins, or part thereof, or simply having me pay for a fraction of the VPS price is €. Either way, the VPS' are running fine, I actually have some in operation and have a draft of the management system, but there are a few issues still and out of sheer lack of time the project has been on hold. I can hook you up with dedicated servers too but I'll have to get a quote from the ISP. If you want to give the VPS a go I can set it up for you, give you 2Gig dedicated RAM, but you will not have dedicated CPU time, so if you are CPU bound it will probably not be the best approach. The machine I'm currently working on is a quad core XEON, and because I'm using KVM for virtualization the most I can do is give you one core affinity. I can arrange for pretty much anything but this is not my main business and you will be better served elsewhere if you need 99.999% uptime and 1 hour response Oh, and we'll be putting no cap on traffic for starters, but the future will depend on how much abuse we get. |
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I have a VPS service on testing stage (for too long now, have just been busy). If VPS is good enough for you let me know and we can come up with something.
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So say I sold a few coins, and I emailed the buyer... how long should I wait before I ask for the transaction to be aborted? Is there a system in place to handle lack of communication?
I don't see anything related to that on the FAQ, but some guidelines would be appreciated.
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Ah bittertea another troll that posts nothing but  nice to see you chime in Yep geck you did it all by yourself
had nothing to do with other miners doing work that got you there
WTF anything else you want credit for
bobR is my favorite troll. And we're back! I missed you, bobR, I really did |
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you say you take your reputation in a very serious manner, but from where I stand, nitpicking on the exact wording of a forum post by anyone, let alone a generally trusted member, will not net you much positive karma. I'm not here to make friends. I'm here to be trusted as a business. If you won't do business with me because you don't like me personally, that's a bit silly but it's your prerogative. Fair enough, but I would argue that your understanding of what I meant is a bit flawed, though I may have worded it badly. I won't do business with you because I don't trust your reasoning when a disagreement arises. And in business, like in marriage, you get to know the other half not when you tie the knot but when things go sideways... But don't take this personally, I am not in the market for your services at the moment. If I ever am, these threads, and more specifically your position towards the potential flaws pointed out will help me make my mind you on wether to trust your business (not you personally, of course) or not. What you are doing, business wise, is great for the bitcoin ecosystem at any rate, so kudos to you for that! The more the merrier. |
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Hmmm, I had promised myself I would not allow myself to give in to my arguing needs, but there you go, I can't help myself... I'm not a native english speaker, although my work environment is 100% english, and has been for more more than a decade. What that is worth, I don't know, but 2 things got stuck in my (digital) throat and I need to get that out: - I can't see the attitude issues bitcoin2cash is complaining about. Re-reading the message from madhatter does in fact provide all the sentences you question, but the meaning I attach to them is of a pure attempt to help. Maybe with a touch of arrogance, sure, but I believe one is entitled to that when there's a good deal of previous experience, which madhatter has. - bitcoin2cash; you say you take your reputation in a very serious manner, but from where I stand, nitpicking on the exact wording of a forum post by anyone, let alone a generally trusted member, will not net you much positive karma. That, and the fact you refuse to give in on the continuous attempt to raise a white flag from said member, by doing that puzzling thing of dismissing long rants by engaging is multiple dissecting quotes. Honestly, that makes me feel that if I do business with you and we have a disagreement you will simply refuse to listen to my side of the story, dismissing me with a set of handy adjectives. Not cool. But who am I to keep getting between you 2? I'll just go back to the stands and enjoy the show... you can get your gloves back on now, gentlemen!  |
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I don't mean to troll or linger on a subject from which there is very little gain to be taken, but from my many months on bitcoin and this forum specifically I feel I need to say "chill out", bitcoin2cash...
Maybe I'm just biased, as I have had conversations with madhatter in the past regarding myself taking the European front on the cash in the mail exchange he runs and I generally know madhatter is very trustworthy and fair, but reading through this thread and the other one he points to gives me absolutely no indication that he's trolling, trying to scare you or your clients off or anything of the kind. And I for one appreciate his doing this in the open, as I am always considering my next bitcoin related move and all experiences, good and bad, are very helpful.
I don't want to be rude, really, please don't read too much into this, but you start to sound slightly like bobR (in a VERY mild way, it's just the direction of the thought not the position itself), by taking every attempt to "make good" as another attack, and in fact crying wolf too easily.
Just saying, really. I have nothing more to offer other than my trust in madhatter and the knowledge that his experience should not be frowned upon, imho.
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There's even profit in the "aggregation" of exchangers... It always puzzled me why there's no known attempt to do that, as it would be fairly easy to have, say, bitcoinusa have a few bucks on mtgox and then offer theirs bids and asks at a slight markup, making the buy/sell on customer request. Hmm, how about an external proxy doing that on multiple exchangers?
Even better would be a client you can download and use that exchanges from your desktop with anyone else. That works great for bitcoins, but how do you get the client to do USD/EUR/etc transfers? But a client where you can work all the exchanges at the same time would rock, except that the second person to use it would find all exchanges operating at the same exact rates... ooops |
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There's even profit in the "aggregation" of exchangers... It always puzzled me why there's no known attempt to do that, as it would be fairly easy to have, say, bitcoinusa have a few bucks on mtgox and then offer theirs bids and asks at a slight markup, making the buy/sell on customer request. Hmm, how about an external proxy doing that on multiple exchangers?
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After your lesson, I should be able to fly, breath fire, and hold my breath for 5 hours and calculate sha256 hashes faster than a huge farm of 5970 miners.
There, now he doesn't have to wait that long, assuming the teacher doesn't mind being paid only after the lesson (and also doesn't take the hint at the easier method for achieving the same end result ). |
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Well, it's a gamble in and on itself |
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Not sure if this was discussed before, I didn't find anything on my 5 seconds search. I needed to use ssl for remote miners and while bitcoind now supports that out of the box, poclbm didn't seem to, at least not the version I was using (and I'm too lazy to try and upgrade a perfectly running system) so here's a patch to allow for that. Patch is for BitcoinMiner.py and you just supply the host part with 'https://' prefix to make it use ssl. 158,159c158,162
<
< self.host = '%s:%s' % (host.replace('http://', ''), port)
---
> if host.find('https:') >= 0:
> self.connector = httplib.HTTPSConnection
> else:
> self.connector = httplib.HTTPConnection
> self.host = '%s:%s' % (host.replace('http://', '').replace('https://', ''), port)
220c223
< self.connection = httplib.HTTPConnection(self.host, strict=True, timeout=5)
---
> self.connection = self.connector(self.host, strict=True, timeout=5)
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No, there is no 'mixed_debit' in my pull request. Coins are 'immature' until they have 120+ confirmations, then they are 'generate'.
So just like jgarzik's patch, only instead of 'mixed_debit' you call it 'immature'... Ok, can't see why the change knowing many are already using a patched version with 'mixed_debit' but either works for me, so as long as I can know when I have generated blocks before maturity. Any chance we get this on the mainline build anytime soon? |
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b) list them as 'immature' -- a new transaction category.
I'm leaning towards (b), because that way apps don't have to know that COINBASE_MATURITY is 100, and it is easier to double-check that listtransactions agrees with the getbalance API calls (immature coins are never counted in balances, because they can't be spent until they mature).
The only drawback I can think of is that adding a new transaction category might confuse existing code.
xlisttransactions shows immature blocks as "mixed_debit": {
"address" : "1111111111111111111114oLvT2",
"label" : "",
"txid" : "81862a4db4edb6b919355f5f70c32e5cecaae0c7f6f67f86ea586a9392ae33bd",
"txtime" : 1301242706,
"category" : "mixed_debit",
"amount" : 0.00000000,
"confirmations" : 10
},
And so several miners already use a different transaction category in the field (those that patch it in, which apparently several big miners do). So are we talking about 0 > mixed_debit > 100 > immature > 120 > generated? Why not mixed_debit all the way to 120, which is a transaction category miners already know (and what I was using on my custom miner, provided the listtransactions patch). I didn't even know about the 100 blocks maturity, I thought it was 120 just from what both the gui and the fact that balance was only accounted from those blocks at 120 confirmations on bitcoind. In a nutshell, is there really a need for a new transaction category? |
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Using the latest plain vanilla bitcoind (0.3.20.2) I'm testing the getwork interface for remote miners, but I miss one feature from the listtransactions call, and that's the generated blocks before they are confirmed. Can I do that at all with the plain bitcoind, is there a reason for that not being in there?
Thanks
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