I had another crash of my windows 8.1 machine which I run uᴉoɔʇᴉq core on - and that took down my index - - again.
Now after a night of the fan going full speed I am still 37 weeks out of date.
There must be a way to back up that work!
Would it be possible to have a back-up of the index and restore it after a crash that corrupts the index? A copy of a few GB should be faster than hours and hours of reindexing.
Or is there a reason why that should/would not work?
If it is possible would I have to shut down core before backing up the index to make sure no files are open that might not be backed up or could I use shadow copy to do that (or would I end up with a corrupted index after restoring a snapshot that core does not know what to do with)?
Thanks - Merlin
Of course. You need to go to the data directory and and find the blocks, chainstate, and database folders. These you need to backup. Copy them somewhere safe. However, these folders are not just "a couple of Gb" but rather 60+ Gb. You will need a hard drive that can store this full backup (because you will need all of it) and the original. Whenever you need to reindex, you can just copy those three folders back to the data directory. Keep in mind that this will set your sync state to the same as when you made that backup so you will need to wait a little bit for uᴉoɔʇᴉq Core to catch up. If you want to keep the catch up fast, then you should make those backups routinely. Also, I advise that you upgrade to uᴉoɔʇᴉq Core 0.12.0 if you have not already. This version has fixes which makes it not necessary to reindex on a crash. You shouldn't need to reindex every time it crashes with this latest version. It is also probably advisable to shutdown Core prior to backing it up. |
|
|
|
Ok, I ran bitcoin core with -zapwallettxes. The transaction is now gone, however my wallet balance is zero!!! What should I do now? Once your wallet is synced, you need to remove that transaction from your wallet. This will then allow you to spend your Bitcoin as it is not actually gone. To do this, you must start Bitcoin Core (I assume it is Bitcoin Core because that is the only wallet that has -000 in the txid) with the -zapwallettxes option which will remove your transaction. Then you can spend the Bitcoin again and it should go through.
Huh. Strange. Try starting it with the -rescan option this time. You don't need to have -zapwallettxes anymore. Also, do you know the address(es) where the coins were located? If so, you should be able to see if there are still there or if they were sent at another time somewhere else. Btw, make a backup of your wallet now (even if you already have several) just to be safe. |
|
|
|
According to : http://www.wpthemedetector.com/ , Cointelegraph don't even use Wordpress I also searched and I couldn't find anything about it here https://wordpress.org/plugins/ , Bitcoin have a very low support for what comes to Wordpress (which is considered #1 CMS) but well , It seems like some web developers are interested into making Ponzi scheme instead of helping the community . I know they dont use WP. I have posted the link as example (the sharing/reward module) I am also interested in this. Perhaps Mashshare.net could integrate bitcoin tips for sharing posts into their existing plugin.
What I have found until now is this: https://wordpress.org/support/plugin/wordpointsIt give points to users (wich can be converted in BTC). But it does not have the option to give points for sharing posts ... I wonder if ChangeTip might be a way to integrate the two. It could help to avoid too many small transactions as a bonus. It is tricky though because you have to track the number of shares, time etc. Without that, you could just make the share link fire off a payment via changetip in addition to sharing it. |
|
|
|
Even me i can't find them !
But i'am talking about the 49 btc in my balance..
Why it's pending ?
What is the address or any transaction involving it? |
|
|
|
Please why my balance is pending ?
Is it fully synced? |
|
|
|
Is there a ways to know which btc address is from?
Like I can see some btc address that starts with 1 and sometimes its from blockchain but I'm not really sure. how do i know its from any hard wallet such as multibit or bitcoincore. some of them also starts with 1. they may be even from exchange sites.
If you know how the wallet, e.g. handles change or selects inputs you can make an educated guess. You can never be sure though. Well, unless its bc.i. They state on their HP if they relayed a TX first. That could also mean someone used their site to push a TX created elsewhere, but Id says thats uncommon. You could also tell (2013) which were probably using an Android wallet due to an Android prng bug. It also wasn't a guarantee, but at the time was highly likely. See: https://bitcoin.org/en/alert/2013-08-11-androidIn general without a problem in the wallet, it should be impossible to tell where the address is generated from the address itself. As shorena says, you can make educated guesses with other metrics. |
|
|
|
i have his probleme in ubuntu
root@ubuntu:~/learncoin/src$ make -f makefile.unix USE_UPNP=-
/bin/sh ../share/genbuild.sh obj/build.h
fatal: bad default revision 'HEAD'
root@ubuntu:~/learncoin/src$
This looks like an alt-coin, you should try asking in that alt-coin forum. Good luck! |
|
|
|
I searched my mac's hard drive, desktop and every other nook of my computer for debug.log, peers.dat and all of the other files named in this thread. Nothing. Unreal.
What's going on?
Did you try going to that location using the Go menu in Finder? https://support.apple.com/kb/PH19069?locale=en_USSo have you "searched" as in used the search function or "searched" as in gone to that directory and looked it it as above or using the Terminal? |
|
|
|
Trouble is, the transaction has completed so where would the money go?
Are you sure the transaction was sent? Can you provide the transaction ID for said transaction? Most wallets check, if the address they are sending to is a "valid" one, and wouldn't let you send to a 69 char string. Also, what was the address you tried to send the coins from? Even if the wallet would not check, the blockchain should not accept the transaction anyways, should it? It shouldn't be accepted by the wallet or the network. Without a transaction ID, or the address, I have a very difficult time believing it. What wallet was used? Please post the transaction ID and address (NOT the private key of course). |
|
|
|
I feel like a very dumb person right now. I saved the raw transaction form with the address : 1TtxVxWQwXCcdrbzXFQZGnrBP8oSVjYwP that I used previously. And today I wanted to send 0.0348 to my exchange account, but I forgot to change the receiver address, and now I lost these coins for ever as I deleted that wallet file. I am glad I made this mistake with a small amount right now, and not later with a large amount. I know what I did wrong now. I removed the address from the form and changed it to "INSERT RECEIVE ADDRESS HERE''. If I again forget to add the right receiving address, it won't send the coins to the wrong address anymore.  I presume you don't have an old backup somewhere? |
|
|
|
I sent a small amount of BTC without fee. It's been over 30 mins and I see no confirmations yet.
What are my options now?
I'ts been a while (2 years i think) since I used BTC for many things and now I started using it again. I used to send funds from my qt wallet, but don't use that anymore. Is qt wallet better for transactions? what's the difference between using qt wallet and using online wallets, please share links with me, will be very helpful to get back on track.
You didn't say what wallet or service you had used to send the BTC. Do you have a tx id? |
|
|
|
HI Guys
I made a couple of cash outs more than a week ago and still see nothing in my wallet. Can you please assist.
Stefan
#1 which wallet/service? #2 from where to where di you send? #3 tx id? Hi I'm using Blockchain "MY Wallet" I transferred bitcoins from BITFactory to My Wallet My Wallet address is 1FKez51GxTVNtSBdBG9bsKaynCfP6EyEW2 Stefan Since you are talking about BITFactory and assuming you are talking about blockchain.INFO (vs some other blockchain service or the blockchain), you should talk to BITFactory technical support. If you tried to withdraw from them, did they give you a transaction ID? You also might try asking in the correct thread. |
|
|
|
I thought so, too ... but after all my wallet.dat was rewritten with no keys inside. I don't know why I assume I made some mistake, but just want to ask if someone knew more.
Hopefully you have a backup (or 2). If it is something that is reproducible, that could be a bug. I haven't seen other reports of it though. |
|
|
|
|
What version of Bitcoin Core are you using? In most cases letting it sync is faster compared to bootstrap.dat since 0.10.x.
As far as "unpacking bootstrap.dat", do you mean you left it compressed?
|
|
|
|
Hello,
I have huge issue because must share my bitcoin blockchain through different users.
Just finished downloading all data on one user and to avoid downloading it again wanted to share it with different user (just need it very fast - today).
To share blockchain used applications folder (I'm OS X user) and copied all data to place where bitcoin should download files but before it started downloading (made backup before run wallet). Strange thing is that after creating bootstrap file there is nothing happen to import anything..
More, after I deleted bitcoin file from downloading location after running bitcoin wallet its running and downloading files but probably somewhere else? Don't know where because nothing was created after deleting my copied file with bootstrap.. That's true that I changed location of files folder on main user to documents/bitcoin but it's also not downloading it there as second user.
Really must to solve it in next hours otherwise have some problems.. Could u help me somehow import all data from first user to second user, so there is no reason to download all files again? Strongly appreciate.
A few questions: 1. You are not actually asking about sharing a *wallet* between users, just the block chain, correct regardless of the subject? (Bitcoin Core, presumably) 2. Are you intending to have both users running Bitcoin Core simultaneously? 3. Are you talking about merely copying the downloaded data with the second user or actually sharing the downloaded block chain at the same time? A few notes: 1. If you used a bootstrap file, that is slower than actually letting it sync. At least since 0.10.x. 2. If you copy (not move) the bitcoin folder to the new user and just let Bitcoin Core run there, that can save time. You won't be sharing the wallet or the block chain between users. The default data directory on OS X is here: ~/Library/Application Support/Bitcoin/ See: https://en.bitcoin.it/wiki/Data_directory#MacSo you should be able to copy that directory to the other user. How did you change where Bitcoin Core is storing its files? Have you checked to see if it is downloading to the default location? |
|
|
|
Hi.
My mobile wallet always tells me that using faucets makes my wallet app slower.
Is there a way to reverse this effect when it happens? And how does it even effect the wallet?
What wallet? I could depend on the implementation. Presumably, you could consolidate all the inputs through a transaction, but without knowing which wallet etc, it is hard to say for sure. |
|
|
|
As far as what Luke said, I know what he said and had seen it previously, but it seems clear his meaning was half the hash rate, not half the miners since that metric is meaningless. "Half the miners" might control 1% of the hash power or 90% depending on who is included in the 50%group. He wasn't be precise, but thought most people would understand his meaning. I was just giving approximate numbers which given the immense search space involved become even closer to the approximation. For all intents and purposes the 0.005% difference is meaningless in these numbers and is much smaller in reality so approximations are fine: E.g. A 2^64 or 2^256 sided die even with 10000 miners/players doing a single roll. Even if there were 1 million miners doing a single roll, it wouldn't change the math significantly. Try taking your dice the other way, instead of making them smaller, make them much, much, much, much larger and hopefully you will understand where the error is. Luke Jr is talking about half the hash rate dropping off the network, not necessarily half the miners.
Luke Jr stated: "For example, if 50% of miners dropped off the network, blocks would be every 20 minutes on average...". The link to his statement online is my previous post above. If you have a 1000 sided die, and 10 players, look at the stats for that to roll a 1 on the first try? 1/100
If you have a 1000 sided die and 10 players, the odds of one rolling a 1 on the first try is: 1 - ((999/1000)^10) = ~0.9955% it is not 1/100 which is equal to 1%. Consider you had a 3 sided die and 2 players, what are the odds that at least one throws a 1 on the first try? The answer is: 1 - ((2/3)^2) To understand this, let's look at the possible combinations: [player 1's throw, player 2's throw] [1, 1] [1, 2] [1, 3] [2, 1] [2, 2] [2, 3] [3, 1] [3, 2] [3, 3] in 5 cases, at least one of the players threw a 1. There are 9 possible combinations of results. So, there is a 5/9 chance of a player throwing a 1 on the first throw which is not 2/3 (that would be 4/9) and 1 - ((2/3)^2) = 5/9 |
|
|
|
There shouldn't be many hard forks. The reversion to a larger block size and a new opcode for side chains are two that will likely occur. Perhaps re-enabling some of the other opcodes that are disabled. After that, the need for hard forks should be extremely rare. Look at IPv4 vs IPv6 or changes to TCP/IP, DNS, SMTP etc. Changes are few and far between for good reason. For bitcoin, the need for changes should be similarly rare and to make matters worse carry systemic, catastrophic risk to all of bitcoin. It is like trying to swap out an engine on an airplane while cruising at 30000 feet.
By the design of bitcoin changes should be extremely rare or only needed in the event of a catastrophe. And changes at the whim of a simple majority could easily cause it to morph into a fiat type system which would result in the destruction of bitcoin.
Consequently making voting easier and more common is a bad idea. Bitcoin isn't a democracy, it should be a dictatorship of math and protocol. Or perhaps if you prefer, the protocol is the Constitution and it should be rarely, if ever, changed. The option is that if someone wants a change, just create a new protocol/Constitution. Every change to the protocol creates an alt-coin. Anyone can change the protocol, create this alt-coin and convince people to switch.
I`m not a technical expert but I dont think you need any hardfork of the protocol to implement my idea. You only need to code this feature inside the client. No one said you did need a hard fork for the the idea. In fact, you don't even need to implement your idea in a client, just with RPC commands - it is easy enough that shouldn't be in the Bitcoin Core. A lightweight client would be better otherwise you'd have to download the entire block chain to vote. Perhaps the assumption that you were proposing that people vote on forking changes bitcoin was wrong, but the follow-up discussion seemed to tend towards using this voting mechanism to vote on changes to bitcoin itself vs on who should win an US/EU election. ;-) |
|
|
|
|
Show Posts
