Questions tagged [synchronization]
This is the process of bringing a Bitcoin client up to date with the list of all Bitcoin transactions known as the blockchain.
57
questions with no upvoted or accepted answers
4
votes
2
answers
166
views
What are the downsides of integrating accumulators like Utreexo to bitcoind?
Inspired by the discussion on this question, I wonder what the downsides would be of adding accumulators like Utreexo (site, paper) to bitcoind?
On the positive side, it seems like a huge improvement ...
- 11.6k
3
votes
0
answers
762
views
Raspiblitz slow sync performance
I'm syncing my raspberry pi 4 model B, 4GB and after 4 days I'm less than 50% synced. It seems as though there is something wrong with bitcoind as there are some weird symptoms going on. The pi is ...
- 131
2
votes
1
answer
101
views
Unprune & Re-Download Failed. Core asks for a "-reindex" due to chainstate, then fails
I was attempting to return from pruned to unpruned chainstate. Unchecked the pruned box. Core cautioned this would require re-download of the blockchain in its entirety. OK, fine. Shutdown Core to re-...
- 21
2
votes
0
answers
610
views
Bitcoin Core Blockchain Sync Fatal Internal Error - Corrupt Block - Linux
I'm trying to perform the IBD on Bitcoin Core 0.18 and I continually receive "Fatal Internal Error" at seemingly random intervals, closing bitcoin-qt and preventing me from fully syncing. Farthest I'...
- 21
2
votes
1
answer
191
views
How can I make Zap synchronize with the Bitcoin network?
I'm using the Mac operating system. I downloaded Lightning App and Zap from Github.
The wallet can not be synchronized with the network, how can I synchronize it and can I do it without having to ...
- 21
2
votes
0
answers
400
views
Connecting to peers but not loading any blocks
I start Bitcoin Core as admin and last week everything worked as it should,
but now it is stuck at 93% and tells me it is connecting to peers.
In the end I waited 5 hours and it happend nothing.
...
2
votes
0
answers
516
views
Synchronisation stopped at one specific blockchain
I've successfully been using Bitcoin core for the past months, but since two weeks ago its synchronisation is always stopped at the exact same blockchain.
2 weeks later, sync is behind by 2 weeks. And ...
2
votes
0
answers
719
views
help my Bitcoin core wallet won't sync
more Bitcoin core won't synchronize with network but my wallet has a balance of 0.00 it I have done transactions that reply back as true and if I do balance for those addresses it shows transactions ...
- 29
2
votes
0
answers
110
views
Bitcoin .11 Initial Blockchain Download Problem with OS X 10.10
I am loading the blockchain for a new wallet. Initially I had problems due to ISP issues. This issue is fixed and I now have 8 outbound connections working well with ping times ranging from 50-800 ms. ...
- 101
2
votes
0
answers
1k
views
How can I rsync my bitcoin database?
I would like to use the bitcoind daemon but I don't want the high CPU footprint related to validating blocks every time new blocks come in. There is a better equipped computer that I can rsync with, ...
- 1,073
2
votes
0
answers
679
views
How to use downloaded blockchain on ubuntu?
I am using a fresh install of Bitcoin and have no wallet with coins at this time, and want to use the Bitcoind service in short time (loading blockchain using bitcoind will take days because of slow ...
- 43
1
vote
0
answers
28
views
Bitcoin blockchain doesn't continue installation
I successfully downloaded the Bitcoin blockchain on an external hard drive (as well as git repository). It was working and syncing just fine. I haven't used in a month or so, now the blockchain won't ...
- 13
1
vote
0
answers
50
views
Bitcoin Core: estimated time to synced, without GUI
I enjoy how the Qt program reports how much time remains to complete the chain synchronization, but I don't know how to get that without using the GUI.
Can you configure bitcoind to report that? Can ...
- 693
1
vote
0
answers
181
views
Error `settings.json file has no read or write access` - but permissions OK
I was downloading the whole Bitcoin blockchain and the download stopped and I got an error message that the settings.json file has no read or write access, but I checked the permissions of the file, ...
- 11
1
vote
0
answers
406
views
Can Bitcoin Core Blockchain initial sync time in BitcoinQT be sped up?
Given the following platform hardware and internet data speed (provided below), what settings are recommended for fastest possible blockchain download and sync?
This is the hardware I'm running:
Note:...
1
vote
0
answers
34
views
How to install Armory Wallet on MAC MINI 12.3.1 MacOS Monterey?
How to install Armory Wallet on MAC MINI 12.3.1 MacOS Monterey ?
- 11
1
vote
0
answers
73
views
How to get time left using command line during initial block download?
When using GUI version of Bitcoin Core, time left before initial block download has completed is displayed.
Using bitcoin-cli, one can see verificationprogress, but is there a way to get time left ...
- 241
1
vote
0
answers
71
views
Is there a way to sync bitcoin core without verification?
As the question asks, is there a way that one could sync the bitcoin client without verifying all the blocks. During IBD, downloading the blockchain isn't the bottleneck, what takes time is verifying ...
- 33
1
vote
0
answers
231
views
Can you prune blockchain without redownloading?
I've downloaded the whole blockchain now I want to run a pruned node on another device. But if I klick on prune block storage in bitcoin core, it tells me that reverting this setting requres re-...
- 21
1
vote
2
answers
82
views
Multisig synchronization
I understand what the multisig wallets are but I need help understanding what exactly this script does:
https://gist.github.com/gavinandresen/3882537
If I understand correctly, bitcoinds are bitcoin ...
- 111
1
vote
0
answers
58
views
bitcoin-qt 0.21.0 in win10 keep hight disk I/O, and GUI not respond
My OS is win10, and I used to use bitcoin-qt 0.13.0, it was fine but I found it syncs very slow now, so I upgraded bitcoin-qt to 0.21.0.
I feel 0.21.0 syncs much faster, but it always keep high disk ...
- 113
1
vote
1
answer
233
views
How to improve bitcoin-qt when downloading blockchain? (very technical, dev views appreciated)
GitHub suggested discussing here before bothering developers with an issue.
So be it! :)
I'm running Bitcoin Core Version v0.20.1 and Linux Mint 18.3 on crappy old hardware. Pruning blockchain to 2 G ...
- 73
1
vote
0
answers
80
views
Initial blockchain sync stuck on block 237158
Stuck on block 237158. Rebooting doesn't work.
Do I need to start from scratch?
admin@raspberry2bit:~ $ sudo tail -f /mnt/ext/bitcoin/debug.log
2020-10-26T08:48:30Z Loading addresses from DNS seed ...
- 11
1
vote
1
answer
1k
views
Funds received still shows pending and unavailable until confirmed in Exodus. Should I be concerned?
I have a transaction I received in my account that has been marked as pending for the last 12 hours (now 16) and counting. The BTC and US equivalent shows in my wallet (Exodus) but the wallet has it ...
- 11
1
vote
0
answers
590
views
Pruning Blockstore has been running for days
After activating the core (Testnet - Pruned) with the command bitcoin-qt i received the following error:
Corrupt Block Database
I restarted the synchronization always using the Pruned mode.
The core ...
- 125
1
vote
0
answers
123
views
Bitcoin Core wallet fails to load and requires reindex after I already did it
My Bitcoin Core is synchronized. But I can't open a wallet, it says that I might need a reindex. Though I already did it. Also I can't do dumpprivkey because it says that no wallet is loaded.
How can ...
- 11
1
vote
0
answers
221
views
It's October 2018. ./bitcoin-qt -reindex-chainstate takes forever. Is there a way to speed this up?
Current version: Bitcoin Core 0.16.3
I think I have a corrupted blockchain download as my VM box was shut down in the middle of syncing. Which is why I'm doing a -reindex-chainstate
I have the ...
- 10.9k
1
vote
0
answers
519
views
Blockchain download stuck on Bitcoin core wallet
The caching up process was progressing (slowly but still progressing) until it got stuck after processing 436820 blocks:
http://i.imgur.com/4nbP3ML.png
3 days after, I'm still at 70.76%
Says I'm ...
- 11
1
vote
0
answers
90
views
Bitcoin Full Node Stalled - 13.2
A full node that I've had running for months just began to stall on a certain block. It seems to be refusing to update blocks beyond a certain timeframe. There are no processes spinning, network ...
- 11
1
vote
0
answers
423
views
Bitcoins disappeared on import into Electrum
A few years ago I received some bitcoin in Bitcoin Core (~0.4 BTC). Then I transferred some to Kraken (~0.1 BTC) and a few weeks later transferred some back (~0.1 BTC). Then I backed up wallet.dat and ...
- 11
1
vote
0
answers
172
views
bitcoind reloads blockchain from scratch when it starts up?
I have had my bitcoind turned off for a couple of months and I just turned it on again (bitcoind -daemon), and it seems to be reloading the entire block chain from scratch. Shouldn't it be loading ...
- 988
1
vote
0
answers
268
views
Bitcoin Core QT Fatal Error after moving block folder, can't retrieve Private Key
I have tried installing Bitcoin Core on my PC and without thinking, I went on and bought some coins (I was trying to be organized, so by the time the sync was done I would already have the coin).
90% ...
- 11
1
vote
0
answers
388
views
Bitcoin Armory startup issues
I have an issue with Bitcoin Armory. I have run it on Win 7, Armory version is 0.93.3-beta. I have run it at least once a week an so far it worked properly. Now it wont sync with the network (jams at ...
- 11
1
vote
0
answers
167
views
How to check Bitcoind block chain download progress level without blockchain explorer?
so my problem isn't with bitcoin particularly but with a dying altcoin, I have the same problem as here.
But can't use a blockchain explorer site, since there doesn't exist one.
Is there any way to ...
- 11
1
vote
0
answers
88
views
Installed Bitcoin-QT on windows2008r2 server, but it won't snyc anything at all
Installed Bitcoin-QT on windows2008r2 server, but it won't sync anything at all. No connections to network, no blocks, no movement full stop. I have OK'd it in windows firewall, tried connecting ...
- 11
1
vote
1
answer
790
views
Cannot synchronize with Bitcoin in testnet mode
I downloaded Bitcoin-QT for Windows 7 into:
MYUSERNAME/Downloads/bitcoin-0.8.6-win32/bitcoin-0.8.6-win32
I want to run Bitcoin in testnet mode, so I created bitcoin.conf with only the following ...
- 229
1
vote
0
answers
2k
views
Sent bitcoins to my unencrypted wallet and encrypted the wallet before file synced, is there any way i can get them back?
Thanks in advance for any light you can shed on my problem..
I think I sent bitcoins from an online wallet to my offline wallet BitcoinQT(0.81) in august.
The transaction has been confirmed, but not ...
- 11
0
votes
0
answers
32
views
How long does it normally take to set up a test node? How much of your disk is utilized?
I did a complete factory reset on my computer and simply started over. I have a Aorus 5SE with windows 11. I am using VirtualBox 7.0.6 and Ubuntu 20.04.
My new virtual machine has 4GB of base memory, ...
0
votes
1
answer
147
views
Often seeing Rewinding blocks... and Loading block index
Every so often I see these error messages in Rewinding blocks... and Loading block. What is the cause of those error messages? I am using the core wallet.
0
votes
0
answers
48
views
Recover an implement old Multisignature Wallet with different Keys
I have a problem with a multisig wallet. The keys are no longer accepted by the console. Only a part of the keys can be inserted. The wallet is then also displayed to me. What happened afterwards is ...
- 1
0
votes
1
answer
51
views
Bitcoin-qt exits silently after syncing blocks until before 24 hours
I shutdown bitcoin-qt (version: 23.0) around two weeks back. Now when I relaunch it, it syncs blocks until 24 hours and then silently exits. debug.log file contains the following as last line -
2022-...
0
votes
0
answers
13
views
bitcoinj startAsync() causes app to fail repeatedly
I have no experience with android programming. I am just trying to build a simple wallet.
Following is the trial code:
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
...
0
votes
1
answer
546
views
Bitcoin core synchronization too slow, only 16 hours of blockchain in 20 minutes
I have Bitcoin Core stored on my external disk and currently I am on 39%. but the problem is that it is getting slow for some reason. The Bitcoin Core Qt app is constantly beachballing on my Macbook ...
- 1
0
votes
0
answers
136
views
Why does Electrum never complete synchronization with a server?
How do I diagnose why electrum never finishes synchronizing?
I've tried selecting networks individually without success.
Can I ping a server to confirm connectivity?
0
votes
0
answers
72
views
What work is needed to close a block from 2013
Please could you tell me what work is needed to close a block?,also is it possible to to do this while not fully synced?could you also tell me what information would you have to have access the ...
- 1
0
votes
0
answers
73
views
Power outage during Bitcoin Core initial synchronization
I had a power outage when I was half way through my Bitcoin Core initial synchronization. Is there a way to pick up where it left off or do I need to start over?
- 1
0
votes
1
answer
77
views
Missing Transaction on older Bither wallet on older computer
Please note I am not that technically savvy nor know that much about cryptocurrency. I am helping out a friend that (for disability reasons) cannot ask himself.
My friend purchased and has bitcoin he ...
- 1
0
votes
2
answers
945
views
Deleting Electrum wallet and setting up new one
I set up an Electrum wallet before I learnt that you should verify the signature. While I went straight to the electrum.org website to download it, I would still like to be secure, just in case. So I ...
- 1
0
votes
0
answers
139
views
IBD problem: Reindexing blocks and syncing starts over every time I shut and open Core
I am currently doing IBD in segments due to logistical reasons, but each time I safely shut down Core and unplug my hard drive (HDD, 1TB) and then plug it back in and start up Core, it starts in 2009 ...
- 574
0
votes
0
answers
180
views
btc qt walletdump
I'd like to dump my entire btc qt wallet, while syncing, into an electrum wallet.
I don't want to do it receiving address by receiving address.
I already emptied out all my receiving addresses but ...
- 11