Questions tagged [stellar-core]

stellar-core is the backbone of the Stellar network. It maintains a local copy of the ledger, communicating and staying in sync with other instances of stellar-core on the network.

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How to speed up database synchronization?

After stellar-core synchronization DB filling began. At a rate of approximately 1.5% per day ( It can affect database synchronization speed? Can it be possible to use a snapshot of the base? ==========...
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How to custom stellar-core.cfg on docker quick start?

I would like to change NETWORK_PASSPHRASE information in the stellar-core.cfg for my standalone network in order to get the new private seed for the genesis block. I managed to edit the file but when ...
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Transfer XLM from Stellar Expert account to Nano Ledger wallet? [duplicate]

I tried using the staking opportunity and ended up transferring XLM from my Nano Ledger wallet to a Stellar Expert account. How do I transfer the XLM back to my Nano Ledger wallet?
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Stellar Private Network: Waiting for ledger to be available in stellar-core

I have launched Private Network by tutorial https://github.com/stellar/packages#sdf---packages and published full validators. I can't understand where my mistake and why I see ledger version = 0 ...
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How to set the price to my own new asset?

Good day I have created the my own new asset in stellar public network. I'd like to set the price to my asset. for example, it should be 50 USD. How to set the price to my asset? OR other methods? Any ...
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How to set up a anchor on stellar?

As I working on stellar Blockchain, can anyone guide me on how to create an anchor on stellar? and How it will give a withdraw amount in fiat currency & which protocol is it used to convert ...
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stellar-core return error: Segmentation fault (core dumped)

I installed stellar-core from stable repository. Stellar-core version 15.2.0. OS Ubuntu 18.04. I run command: stellar-core new-db --conf /etc/stellar/stellar-core.cfg Stellar-core returned error: ...
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Failed to parse 'stellar-core.cfg' Must specify a matching HOME_DOMAINS for self

I have setup the home doamin got node account. and specify the account in toml file but still getting the following error. "Got an exception: Failed to parse 'stellar-core.cfg' :Must specify a ...
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Been gone a while, can't find my XLM

It's been a few years since I bought onto Stellar, I thought I would check how things are going. Turns out all I can find is my account address (doesnt show up on stellar.expert), and a secret key. ...
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Continuous Status 504

I have been developing a Multi-sig based project and keeps on getting the 504 status so many times when making transaction. I have checked out the testnet staus of Horizon network as well and it seems ...
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If the Hub Server ever went down

I would like to use Public Lumens in a Project I need to make for transactions. As I'd like the Lumens to have value outside my App. But at some point in the future horizon.stellar.org will go down or ...
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Is having hashes of document certificates in Stellar possible for tamper proof use case?

I have a application where I want to store a SHA256 hash of a document in a blockchain so that it remains immutable. I want it to have a good life, like storing the SHA256 hash as a data in a ...
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Stellar full sync

I want to have full stellar history, but I can't. Please tell me what am I doing wrong? I am trying to make full sync of Stellar test network. I have been trying to make several changes in the ...
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Private Network using Stelllar-core

I have launched Private Blockchain using latest stellar-core and add inflation also and whenever testing inflation using stellar-sdk then facing following issues:- result_codes: {​​ transaction: '...
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stellar-horizon db size

maybe someone could help me. I have a node with the config below: CATCHUP_RECENT=362880 # approximately 3 weeks (5sec per ledger closing) - stellar HISTORY_RETENTION_COUNT=362880 # ...
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Getting tx_not_supported on steller-core prod v1.15.0

I am getting tx_not_supported when submitting a transaction. I have compiled at stellar-core prod branch and launched a network. I am able to use the horizon and see the root account. However when ...
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stellar-core upgrade from version 12 to version 15.0.0

I am running a stellar private network with core version 12 and horizon version 20.0.1 Now I need to upgrade the core and horizon both from core version 12 to 15.0.0 and horizon 20.0.1 to 1.11.0 . In ...
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Email confirmation glitch

I've recently inquired about Stellar Lumens and decided to create an account. After going through the steps, the final step was an email verification link. I went to my email and clicked the link and ...
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it possible to impose another asset (non-native) as a transaction fees

I want to build a standalone application (on my own network). The objective is to exchange different types of assets. Here is my question my question. Is it possible to impose another asset (non-...
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const pair = StellarSdk.Keypair.random(); ^ ReferenceError: StellarSdk is not defined

when ever i try to run this code // create a completely new and unique pair of keys // see more about KeyPair objects: https://stellar.github.io/js-stellar-sdk/Keypair.html const pair = StellarSdk....
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Anchorusd trustworthy?

I recently decided to cash in my free lumens from last year on keybase So I looked into it and transferred my lumens to an anchorusd account using the anchorusd android app Keep in mind I have never ...
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What copyright notice should be included to the software built on Stellar?

If the Stellar core was forked and changed, and some software like digital wallet was built on top of the resulting private blockchain, what notices should be mandatorily included with this software (...
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How to configure native currency in a private network

I would like to know how we can configure the native currency in a private network? I would like: Change the name of the native currency Change the number of native currency created in the first ...
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How to fix a stuck stellar node after picking up an incorrect block?

I run two different watcher stellar nodes and they have both gotten stuck after picking up an invalid / incorrect block (i.e. the block hash of my node's top block does not match the block of the same ...
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Balance of Stellar at some point in time

I'd like to know about balance of Stellar address at some point in time. However, it's not going very well. So, please give me some advices or comments about how to do that. Now, I'm using horizon ...
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How can a node safely apply its externalized state while still allowing late commit messages?

Consider a case with Qset { N: 6, Threshold: 4}, 6 nodes and a threshold of 4. If a Node has received 4 commit confirmed messages for a ballot b then it is safe to act on it - as an example by ...
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How to regenerate Stellar Archives?

We are running a private stellar network and we are seeing missing archives files. Can the network regenerate the archive files? New nodes are not able to synch because of this.
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`tx_bad_auth` when submit transaction to TestNet

I submit a transaction to the TestNet by using the official horizon API (https://horizon-testnet.stellar.org/), and it returns tx_bad_auth. This is my code: Server server = new Server("...
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Genesis block/ledger on stellar-core

I am looking at how to generate the Genesis block/ledger on stellar-core. I have seen people suggest pre-populating the database, what is the easiest option for a newbie to stellar-core.
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What is the difference between SCP and FBA?

The Stellar white paper "presents federated Byzantine agreement (FBA), a model suitable for worldwide consensus." It then goes on to state that it "further presents the Stellar ...
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How to setup the first account in a private network?

Hi have setup a private network. Now how do I create the first account so I can start using the network? I have tried the following: const Stellar = require('stellar-sdk') const NETWORK_PASSPHRASE = &...
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Do I need to create and back my own USD token, or are there more distributed approaches to bring USD into my Stellar based app?

I'm transitioning my purely XLM based app to having USD as a deposit, exchange or withdrawal option. Once the USD is deposited, I'll issue a USD token to track that value. How should the exchange on ...
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Two local nodes stuck in syncing state

I've followed the guide here, but my two local nodes are stuck in catchup mode. When I try to for example run this: stellar-core http-command "generateload?mode=pay&txs=10000&txrate=29&...
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Making a horizon account request with http_request?

I am trying to make a request for account data using stellar-core's boost/asio HttpClient. //https://horizon.stellar.org/accounts/GALAXYVOIDAOPZTDLHILAJQKCVVFMD4IKLXLSZV5YHO7VY74IWZILUTO std::string ...
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Is it possible to recreate the history from stellar-core?

We have a private stellar network and for some reason the archive is corrupt and a new node cannot get the history. Is there a way to recreate the full archive from stellar-core?
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Stellar core Bad ledger-header history entry: claimed ledger

Stellar Core v13 stopped validating a few days ago. Unfortunately, I don't have the old logs anymore so I don't know what happened exactly. I can see there's an error in the core logs: 2020-06-08T17:...
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How accurate are Stellar timestamps in practice?

As described in How are timestamps deemed invalid?, it seems that the code enforces two checks on timestamps: monotonicity: the close_time of each block must be greater than the previous close_time ...
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stellar horizon docker install error -history-archive-urls must be set when --ingest is set

I'm trying to install stellar core and horizon via docker: and I get this error when start horizon_1 | 2020/05/26 23:50:15 --history-archive-urls must be set when --ingest is set $ docker ps ...
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xdrc 'cpp.exe' is not recognized as an internal or external command

I am trying to build stellar-core on Windows. I have followed the instructions in the windows install markdown but I am getting the error below. Error MSB6006 "cmd.exe" exited with code 1. stellar-...
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“ingest_latest_ledger” and “history_latest_ledger” freezes, though “core_latest_ledger” increases

I am using "docker-stellar-core-horizon" on Ubuntu-18.04, RAM -16GB (I have also tried the entire thing on CentOS-7, please provide a solution that works for both Ubuntu and CentOS). Docker version- ...
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horizon ingest the historical data

I'm running a new horizon v1.2 with ingest=true. It is connected to the stellar core with CATCHUP_COMPELTE enabled. (the status of the core is catching up 5%) My question is what is the command to ...
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How do i build a fiat payment processor(Gateway) on stellar

I want to develop a payment gateway that can be integrated into online stores, merchants can seamlessly receive payments directly to their bank account. I want to build all the features on stellar. ...
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Node sync using s3 bucket

I have set up a Stellar private network consisting of two nodes. First node stores the history in a s3 bucket. 2nd node stores the history in local AWS. Now I try to connect a 3rd node with the ...
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Root account balance about my own private network and connect with stellar network

I have set up my own stellar private network and the root account balance of that network is 100B. This is because as per my knowledge in the stellar-core source code the root account balance is ...
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Hand code a stellar transaction

I know how bitcoin transactions are built 4 Bytes version & 1 byte number of inputs ...etc similar to this how is stellar transaction built and signed ? Please help me find that information ? ...
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High available stellar core

I'm looking for a way to run a high available stellar validator core. Right now I run one stellar connected to Postgres DB in a k8s pod. My question is if I want to for example run 3 nodes do I need ...
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Stellar HD Path require apostrophe in the end?

I was recently going through some code and came across something new to me. The HD Paths for all the assets I saw ended with /0 but specifically for Stellar it ended with /0'. The complete form: m/...
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How to define your own value type?

I want to exchange not monetary values, but serialisable Plain Old Data Structs (say 4 int32 and char array of 128 items) in each message. One can not sum two of these values directly, yet can take ...
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How to connect to a stellar stand alone node?

My goal was to set up a small test network with two stellar nodes. Therefor, I forked the quickstart repo and made some small adjustments. I changed the public key and the network passphrase. On my ...
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Network.usePublicNetwork(); showing syntax error

I have just migrated to AndroidX (which may or may not be related to this issue). However, Network.usePublicNetwork(); is now showing a syntax error: Below are my imports: import org.stellar.sdk....

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