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Topic: Multiple wallet.dat (Read 1417 times)

jnano

member

Activity: 301

Merit: 74

Quote from: achow101 on August 28, 2017, 02:19:10 PM

Bitcoin Core will still keep all wallets synced and still scan for transactions for all wallets loaded even if you can't use them in the GUI.

Will it show alerts on incoming transactions to secondary wallets?
Are there plans for a GUI, or at least a way to switch the primary wallet without a restart?

virualcashtrade

newbie

Activity: 21

Merit: 0

Samsung n210, from 2010, wifi connection. Not the top, but I like this model as have 4 of them.
At the start of download, it shows 4days, but after it getting slower.

jackg

copper member

Activity: 2856

Merit: 3071

https://bit.ly/387FXHi lightning theory

Quote from: defined on August 30, 2017, 10:37:25 AM

Quote from: jackg on August 29, 2017, 11:20:49 AM

it'll take only the 10 hours again to redownload everything if there is a problem and it doesn't take up any more than 10GB of space on your drive anyway for the ones that are pruned.

You need a very fast computer to download the whole blockchain in just 10 hours.

Quote from: virualcashtrade on August 30, 2017, 10:14:43 AM

I keep a full updated version of blockchain, it was 5 weeks to get fully download, so I prefer not to download again from "0".

Your computer must be very old if it takes 5 weeks to download.

Either that or there's quite a large problem with it.
One of mine is 7 (years old) and that predicts about a week to download the blockchain.

defined

hero member

Activity: 574

Merit: 500

Quote from: jackg on August 29, 2017, 11:20:49 AM

it'll take only the 10 hours again to redownload everything if there is a problem and it doesn't take up any more than 10GB of space on your drive anyway for the ones that are pruned.

You need a very fast computer to download the whole blockchain in just 10 hours.

Quote from: virualcashtrade on August 30, 2017, 10:14:43 AM

I keep a full updated version of blockchain, it was 5 weeks to get fully download, so I prefer not to download again from "0".

Your computer must be very old if it takes 5 weeks to download.

virualcashtrade

newbie

Activity: 21

Merit: 0

Quote from: jackg on August 29, 2017, 11:20:49 AM

Quote from: virualcashtrade on August 29, 2017, 08:23:27 AM

As have got 1TB external drive, there is no problem ...perhaps in a decade need to change for a bigger one.

I'd say wait until you get your first problem before you go straight in and download the entire blockchain on one of your wallets.
If you keep the four wallets going in different directories on the hard drive as it'll take only the 10 hours again to redownload everything if there is a problem and it doesn't take up any more than 10GB of space on your drive anyway for the ones that are pruned.

I keep a full updated version of blockchain, it was 5 weeks to get fully download, so I prefer not to download again from "0".

jackg

copper member

Activity: 2856

Merit: 3071

https://bit.ly/387FXHi lightning theory

Quote from: virualcashtrade on August 29, 2017, 08:23:27 AM

As have got 1TB external drive, there is no problem ...perhaps in a decade need to change for a bigger one.

virualcashtrade

newbie

Activity: 21

Merit: 0

As have got 1TB external drive, there is no problem ...perhaps in a decade need to change for a bigger one.

defined

hero member

Activity: 574

Merit: 500

Quote from: virualcashtrade on August 28, 2017, 05:40:39 PM

Quote from: virualcashtrade on August 28, 2017, 01:19:22 PM

Update: tested the prune version , and works perfectly.
But tested the changing the wallet.dat files. It works also perfectly, only at startup will rescan from the last seen block(can be 100....also). So look like the wallet.dat save the last checked block, and rescan from that one.
In my case, to save space, prune=10000, and changing the wallets in regular base.
Thanks again for all advise!

This can be a problem if you keep a wallet offline for longer than your prune allows.

For safety reason I keep a full downloaded version for this case. Who knows, travel, illness can happen without any sign in advance...

It is not a safety concern, if your pruned data is too new to sync one of your wallets, you can always download the entire blockchain again.
But it is much faster to keep the complete chain if you have enough disk space for it.

virualcashtrade

newbie

Activity: 21

Merit: 0

Quote from: virualcashtrade on August 28, 2017, 01:19:22 PM

This can be a problem if you keep a wallet offline for longer than your prune allows.

For safety reason I keep a full downloaded version for this case. Who knows, travel, illness can happen without any sign in advance...

virualcashtrade

newbie

Activity: 21

Merit: 0

Quote

You will have to restart the sync. the blockchain will be downloaded but the sync will need to take place.
Why wouldnt you just consolidate all of your wallets into one wallet?

Was already trying this solution, but without success.
Thanks

Cygnify

full member

Activity: 140

Merit: 100

Quote from: virualcashtrade on August 27, 2017, 06:26:03 AM

Hello all,
Have got bitcoincore full synced, as have decided to use 4 wallet.dat ( not simultaneously!), facing probably a problem. When the original wallet (w1) was made, it was synced fully. Yesterday added my other wallet.dat to this one(original was renamed) and synced fully overnight. As I do NOT want to run 4 bitcoincore on 4 computer, now am with 4 wallet.dat file. The question is simple: when I change the wallet.dat file to an other one, what was synced already with this client, it will save from the start or from the last point of sync? Any advise can help, thanks.
Have a great day for all.

You will have to restart the sync. the blockchain will be downloaded but the sync will need to take place.
Why wouldnt you just consolidate all of your wallets into one wallet?

defined

hero member

Activity: 574

Merit: 500

Quote from: virualcashtrade on August 27, 2017, 06:59:53 AM

Eg. If I replace my wallet.dat on 23/8/2017, and I put it back on 27/8/2017, the client will rescan the wallet from 23/8/2017.

This is not a problem.

Instead of renaming wallet.dat, use this option when you start Bitcoin Core:

Code:

  -wallet=
       Specify wallet file (within data directory) (default: wallet.dat)

Quote from: virualcashtrade on August 28, 2017, 01:19:22 PM

This can be a problem if you keep a wallet offline for longer than your prune allows.

virualcashtrade

newbie

Activity: 21

Merit: 0

Thank you,
I'll wait for the update, until I load different wallets at a time. Better be sure than making a mistake.... Shocked

achow101

staff

Activity: 3374

Merit: 6530

Just writing some code

Wait for Bitcoin Core 0.15.0 to be released (which should be in a few weeks). Bitcoin Core 0.15.0 contains support for multiwallet; this means that you can use multiple wallets loaded simultaneously. Currently there is no support for it in the GUI but you can interact with the multiple wallets through the RPC commands. The GUI defaults to the first wallet loaded, so if you wanted to use a different wallet, you can restart with a different wallet order in the bitcoin.conf file or in your starting command.

Bitcoin Core will still keep all wallets synced and still scan for transactions for all wallets loaded even if you can't use them in the GUI.

virualcashtrade

newbie

Activity: 21

Merit: 0

virualcashtrade

newbie

Activity: 21

Merit: 0

Quote from: ranochigo link=topic
You can put it in the bitcoin.conf that should be in the data directory. The code is:
[code

-prune=n[/code] where n is in megabytes. So if you want it to be a max of 5GB, it will be -prune=5000.

Take note that you cannot import any private key nor change the wallet.dat once you enable pruning. If you do that, you will have to download the blockchain all over again.

-
Really like to say thank you for all the advises. In 2-3 days I'll post an update about the result.
Thank you again

ranochigo

legendary

Activity: 2982

Merit: 4193

Quote from: virualcashtrade on August 27, 2017, 09:46:34 AM

Yes, that will be easier to do. Even opening each from the same account separately.
The -prune option is from command line start?

You can put it in the bitcoin.conf that should be in the data directory. The code is:

Code:

-prune=n

where n is in megabytes. So if you want it to be a max of 5GB, it will be -prune=5000.

Take note that you cannot import any private key nor change the wallet.dat once you enable pruning. If you do that, you will have to download the blockchain all over again.

virualcashtrade

newbie

Activity: 21

Merit: 0

Yes, that will be easier to do. Even opening each from the same account separately.
The -prune option is from command line start?

jackg

copper member

Activity: 2856

Merit: 3071

https://bit.ly/387FXHi lightning theory

Quote from: virualcashtrade on August 27, 2017, 09:28:21 AM

Yes, you are completely right about this. And I can figure it out how to make them working without problem.
BUT: I keep on external drive for a simple raison: secure and encrypted. As have 1T space, can hold as today size if block chain, 5 different bitcoincore.
Or other way is to merge all wallets, what I was trying already, but without any success. Exported by dumpwallet, and got only error messages and the main wallet.dat intact and same size.

If you run it but use the -prune command when it starts, then you'll only have about 5GB of space being taken up by each blockchain as it keeps only the most recent blocks. Then you could run this with all four running.

virualcashtrade

newbie

Activity: 21

Merit: 0