Questions tagged [bitcoind]
This tag should be used for questions related to bitcoind, the command-line software for Bitcoin Core. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology).
348
questions with no upvoted or accepted answers
5
votes
2
answers
934
views
bitcond and bitcoin-Qt system configuration and bandwidth requirements
What is the best operating system configuration for a computer to run (bitcoind or bitcoin-Qt) and (BFGminer or CGMiner) under Linux, assuming that it will be connected to a 3 Terrahash mining rig on ...
- 51
4
votes
0
answers
193
views
libwallycore error installing LND on Ubuntu 18.04
I'm setting up an LND node on Ubuntu 18.04. I've installed python3, and cloned the repo. I ran configure, and get this error on the make command:
checking byteswap.h, usability... no
checking ...
- 129
4
votes
0
answers
2k
views
How to choose between so many open-source bitcoin pool software
I am now in the venture of finding and setting up a bitcoin pool company. However, after some research, I found out that there are plenty of bitcoin pool software. There are:
CoiniumServ
Cryptonote ...
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4
votes
1
answer
548
views
How many addresses can Bitcoin Core 0.13 **effectively** manage?
I want to know, what's the maximum amount of addresses that Bitcoin Core 0.13 can manage?
All addresses should belong to the default account.
I want to use the walletnotify feature
How does the ...
- 173
3
votes
0
answers
80
views
Problems with multiple wallets on RPC in bitcoin-core
I have been playing around a bit with Bitcoin Core (version 23.0), more specifically connecting to different wallets in Bitcoin Core through RPC in Python. I have found this library and tried to ...
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3
votes
0
answers
692
views
Compiling bitcoin error : A compiler with support for C++17 language features is required
I am reading the "Mastering bitcoin: Programming the Open Blockchain" book by Andreas Antonopolous. In the chapter about compiling bitcoin, the instructions were to execute first
./autogen....
- 195
3
votes
0
answers
697
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
3
votes
0
answers
122
views
Various caches are defined in the Bitcoin source code. What do these caches refer to?
The source code is as follows：
//! -dbcache default (MiB)
static const int64_t nDefaultDbCache = 450;
//! -dbbatchsize default (bytes)
static const int64_t nDefaultDbBatchSize = 16 << 20;
//...
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3
votes
0
answers
249
views
Is it safe to skip the initial block verification at startup?
The longest step in bitcoin core initialization is "Verifying last 6 blocks at level 3". The number of blocks checked at startup went down from 288 in 2014 to 6 now. Therefore, in order to speedup ...
- 713
3
votes
0
answers
66
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How to segregate wallet from bitcoin core | Run multiple wallets in different servers on one centralized bitcoin node
I am running bitcoin full node in a centralized server. I have many web applications running in various places. I want to connect this web applications with centralized full bitcoin node. How to ...
- 31
3
votes
2
answers
5k
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bitcoind error "mempool min fee not met" preventing me from sending btc on blockchain
When I want to send btc in block chain this message is appearing:
BitcoindException(super=com.neemre.btcdcli4j.core.BitcoindException:
Error #-26: 66: mempool min fee not met, code=-26).
Who ...
- 31
3
votes
0
answers
1k
views
How to directly query leveldb database to get get a record by transaction hash or by sender's address?
I learned that the blocks and transactions are stored locally in .bitcoin/blocks/index and .bitcoin/chainstate databases, respectively.
I want to make a direct query to those databases to measure the ...
- 163
3
votes
0
answers
6k
views
bitcoin-cli - "error: couldn't connect to server" [solved as per comment]
I have bitcoind 0.13.1 running on a Raspberry Pi. I can see it on the bitcoin network using bitnodes.21.co but I can't connect to it locally with bitcoin-cli.
My bitcoin.conf is:
rpcuser=xxx
...
- 53
3
votes
0
answers
237
views
Unable to limit tcp bandwidth using tc in QoS for localhost
I am trying to connect few bitcoind instance running on different ports on my local machine and control the bandwidth between those connections. I used the tc utility as following:
#network interface ...
- 507
3
votes
0
answers
526
views
The setup steps for generating bitcoin addresses programmatically and checking for payments with walletnotify
I have read this question and done some investigation, and I want to make sure I have some of this right.
If I have a server somewhere where I can install bit coin (I'm thinking bitcoin-qt on Ubuntu)...
- 131
3
votes
0
answers
509
views
bitcoind inconsistent authentication error
I am using a Linux computer.
The issue I am having is that sometimes I have to use "kill -s 9 (bitcoind pid)" and restart bitcoind using "bitcoind -txindex" because bitcoind will sometimes not let me ...
- 121
3
votes
0
answers
126
views
When does the "reject" string have an empty reject reason upon submitting a new block?
I submitted a new block using the rpc command submit. And I just got a "reject" string without a reject reason.
I checked the bitcoind source code, and found that it usually sends a reject reason; ...
- 187
3
votes
0
answers
125
views
Proving the address belongs to a shared wallet where one can control some deposits and withdrawals
A bitcoin exchange is using a shared web wallet where its users deposits and withdraw bitcoins. The withdrawal transactions are merged, so that the pending transactions of several users are grouped ...
- 2,437
3
votes
0
answers
838
views
Querying insight-api to dump all addresses with a positive balance
It's been some time I've been using 'insight-api' (https://github.com/bitpay/insight-api) and I couldn't find any documentation / anything helpful to query leveldb in a way that all addresses with a ...
- 103
3
votes
0
answers
276
views
Bitcoind JSON-RPC - getbalance with 0 confirmations not included
When I access bitcoind through JSON-RPC and query:
getbalance '*' 0
It does not include transactions with 0 confirmations.
Only when a transaction has least 1 confirmation it is included in that ...
- 31
3
votes
1
answer
183
views
What is the best way to implement withdrawal in online service?
Suppose we have a service, which holds user balance in Bitcoin.
How to implement withdrawal from bitcoin perspective?
Which RPC call to use? How to archive transaction to have a proof of sending ...
- 93
3
votes
1
answer
434
views
Deterministic Wallet Step By Step
I'm reading about deterministic wallets, I get the point, but it get's confusing when you actually start setting up things. I have to install support for generating "whatever"-coin addresses on a ...
- 153
2
votes
0
answers
117
views
What do I tell my company IT dept so they allow my bitcoin core container to connect to other nodes
I work for a corporation therefore work behind a corporate firewall. I login to their vpn then I access company resources like mails, IMs etc.
As a internal team project, I'm trying to setup a btc ...
- 131
2
votes
0
answers
212
views
Pruned Bitcoind Backend for LND with txindex enabled for version > v0.13.0
I'm looking to prune a bitcoind node that will be used by LND.
https://github.com/lightningnetwork/lnd/commit/410b30b9caaf59a78a29d8b924e14395b7daa59d
From the LND commit recently by Kixunil.
Note ...
- 347
2
votes
0
answers
99
views
How to compute deposits from the output of listsinceblock?
I am writing a program that, given the JSON outputs from multiple separate RPC calls to listsinceblock, stores valid deposit transactions in a database and then computes the total deposit for every ...
- 121
2
votes
0
answers
89
views
How to accelerate mempool data access with bitcoind
What could I do to accelerate access to the data I get when I call for example: bitcoin-cli getblocktemplate ?
If I would like to be able to be the fisrt one who get information about all the new tx ...
- 21
2
votes
1
answer
213
views
How to build coinbase transaction from bitcoin core?
I am coding a program that connects to bitcoin-qt as local server. For building the blockheader i need the merkleroot, to build the merkle root, i need the coinbase transaction (which is not provided ...
- 176
2
votes
0
answers
132
views
what is fee_estimates.dat data format?
I'm trying to parse the file fee_estimates.dat.
What is the format of the binary data inside fee_estimates.dat ?
I didn't find any information about it in the dev documentation of Bitcoin.
This is ...
- 121
2
votes
0
answers
76
views
Fully synced bitcoind 0.18.1 on RPI4 using 100% cpu ( 1 core only ) , is it normal?
I started playing with bitcoind 0.18.1 on a RPI4 and i can see that even when fully synced it is still using 100% cpu so one full core.
Is this normal / expected ?
Looking at the threads is the ...
- 131
2
votes
0
answers
114
views
Using bitcoind RPC to identify an incoming transaction that has been replaced using BIP125 Replace-By-Fee
In the context of running a web service that accepts payments in Bitcoin, how can we use bitcoind to identify a transaction that has been replaced using BIP125 Replace-By-Fee?
When RBF is used, a new ...
- 1,453
2
votes
0
answers
86
views
How to get multiple connections to the same node
I'm playing around with connecting my node to another one of my nodes to see how many incoming connections I can handle.
Whenever I add node A from node B with bitcoin-cli addnode 1.1.1.1 add after ...
- 31
2
votes
1
answer
444
views
LoadBlockIndexDB: transaction index disabled
I'm trying to run bitcoind on a Raspberry Pi 3 but I'm stuck on an error. The raspberry has a Hdd for storage with a fully indexed blockchain that was synced on my laptop and than copied to the Hdd (...
- 41
2
votes
0
answers
732
views
Unable to get balance with bitcore lib
Using latest version of bitcore lib , want to check balance for making tx but once I include
var explorers =require('bitcore-explorers');
after
var bitcore =require('bitcore-lib');
Error: More ...
- 21
2
votes
0
answers
113
views
Why is the Serialization limit set to 0x02000000?
In addition to the block size limit, there is a limit on the maximum message size. Is there a rationale behind the 32MB limit set in src/serialize.h or was it picked because it's just a nice round ...
- 21
2
votes
1
answer
646
views
bitcoind starting and then quickly shutting down automatically
Lenovo E460, 8GB RAM,
Fedora 26,
bitcoin core command line version 0.16.0,
All blocks completely downloaded on a flash drive with 256GB capacity.
I rebooted my machine today without stopping the ...
- 21
2
votes
0
answers
180
views
Speeding up walletnotify
In the case of a notice at 0 confirmations, I'm seeing the transaction end up on blockchain.info a lot faster than bitcoind is calling the walletnotify callback - about 10 minutes faster. Is it ...
- 73
2
votes
0
answers
178
views
What is the alternative of Bitcoin-RPC-Client?
I am implementing Bitcoin-RPC-Client for web application but I found bitcoin-RPC-client is better than bitcoinj and what are the advantages and disadvanatges of Bitcoin-RPC-client.
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2
votes
1
answer
2k
views
Can't connect to Bitcoind remotely
I am running a Bitcoin Cash node on my server, and starting it like this:
start bitcoind.exe --server=1 --rpcuser=user --rpcpassword=password --rest=1 --rpcport=8332 --datadir=F:\Bitcoin --bind=10.1....
- 153
2
votes
0
answers
184
views
Clarification of some getaddr() function inputs and outputs
In the Bitcoin system to discover new nodes, each node communicates with its peers by sending getaddr() to the peers. Based on the bitcoin implementation:
//! the maximum percentage of nodes to ...
- 21
2
votes
1
answer
780
views
How to get total number of transactions from bitcoin core wallet using rpc
I'm trying to implement paginations using :
https://chainquery.com/bitcoin-api/listtransactions
I want to have reverse listing (oldest first), so I need to get total number of transaction returned ...
- 556
2
votes
0
answers
191
views
Can I balance load between two instances of bitcoin daemon by switching RPC request?
The question is pretty simple.
I have two instances of bitcoin daemon. When I'm running my pool with parallel RPC requests to each instance it calls daemons too often and daemons queue of RPC calls ...
- 121
2
votes
1
answer
178
views
Wallet for btc bot
Which bitcoin wallet should I use to manipulate it programmatically?
I don't want to use heavy bitcoin-core. But as I understand there are different kinds of bitcoin's thin clients: some outsource ...
- 121
2
votes
0
answers
309
views
bitcoind verifychain vs reindex
actually this is not Bitcoin but Litecoin 0.13.2 on Linux Mint,
litecoind stopped with "bus error" just on start verifying blocks:
tail ~/.litecoin/debug.log
...
2017-05-06 21:15:26 Verifying last ...
- 21
2
votes
0
answers
343
views
Is there a robust way to test for a corrupted blockchain?
While running bitcoind I once had the blockchain get corrupted and it manifested as a non-obvious error message which unfortunately I can't remember. I would like to know if there is a robust way to ...
- 121
2
votes
1
answer
1k
views
bitcoind crashing due to insufficient memory?
EDIT 3
Bumping my VPS to 1GB of physical RAM stopped the crashing issue... UNTIL said VPS ran out of disc space.
I added prune=10240 to my ~/.bitcoin/bitcoin.conf file such that the blockchain file ...
- 184
2
votes
0
answers
368
views
socket send error Bad file descriptor (9)
The log file goes back quite a few weeks but this error started to appear today. Any ideas why?
- 21
2
votes
0
answers
76
views
Bitcoin-Qt does not unpack the bootstrap.dat
I downloaded a copy of the bootstrap.dat for a node I'm trying to set up on a Raspberry Pi (Raspbian OS, based on Debian). I placed it in ./bitcoin, which is the right place according to what I read.
...
- 243
2
votes
0
answers
59
views
A question on CNode class data members
Can any expert help me understand the need for the following members of CNode in src/net.h
std::deque<CSerializeData> vSendMsg;
std::deque<CInv> vRecvGetData;
std::deque<CNetMessage>...
- 105
2
votes
0
answers
122
views
Include Bitcoin-Transaction within database-Transaction
I am writing a system that uses the Bitcoin Core JSON-RPC API.
Use case: user wants to withdraw some BTC to his BTC address.
My application handles this request by the following logic:
Check if ...
- 121
2
votes
0
answers
110
views
Using the bitcoind, can I query if funds have been sent to a multisig address?
I would like to query whether funds have been sent to a multi-sig address.
Using the daemon: the address is valid, but listunspent and getreceivedbyaddress don't show the multisig address. I can see ...
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