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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Node Sync Issue

I am running a private stellar network and try to sync three nodes. From Node I am getting below message. [Overlay DEBUG] Peer 127.0.0.1:11625 is not preferred From Node3 getting below message [...
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How is operation ID calculated?

I am trying to understand how the integer operation ID returned by horizon REST API is calculated. I found this answer which mentions the inputs of the calculation but does not show how to perform ...
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What is <HISTORY-LABEL> in stellar-core new-hist command?

The Error: Nov 05 08:47:34 ip-10-31-37-117 stellar-core[8828]: cp: cannot stat '/var/www-host/stellar-core/history-cache/history/01/96/91/history-0196913f.json': No such file or directory Nov 05 08:...
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What is the meaning “could not serialize access due to concurrent update” and “ERR_LOAD”?

Nov 05 05:56:11 ip-10-31-37-117 stellar-core[2512]: 2019-11-05T05:56:11.255 GDPUZ [Overlay ERROR] PeerManager::store error: Cannot execute query. ERROR: could not serialize access due to concurrent ...
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Install Stellar Core with errors “Could not find pg_ctl or pg_ctlcluster?” in Production

I need to install stellar-core and horizon in Production. I got the ERROR mention it need pg_ctl or pg_ctlcluster. I choose AWS as following: AWS EC2 t3a.medium. 2vcpu + 4GB RAM AWS RDS PostgreSQL ...
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Why do I have to backfill nodes each time?

I just created a new deployment of Stellar Core, Horizon-Ingest and Horizon nodes. My Core is at the top of the chain and fully synced. After confirming that it was indeed synced, I started the ...
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stellar core frozen at ledger 1187897

I have a problem with two stellar-core installations that were installed by the stellar quickstart image (https://hub.docker.com/r/stellar/quickstart/). I have two running testnet-instances of it at ...
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Storing public keys offchain

I am currently building a project around stellar and I came to the problem of storing public keys of my users. In my project I need public keys to be able to get the balances and show them on a ...
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Stellar Core Upgradation

I am running a stellar core with version v10 and need to upgrade it by latest one. In postgres database, records are stored. No upgradation steps are available in stellar developer guides. Need to ...
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run a watcher node for wallet service

I'm a crypto wallet developer and I'm trying to run a watcher node for my wallet. I have a few queries for watcher node. 1. Can I get all transactions and accounts if I run a watcher node? 2. why is ...
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Upgrading my wallet from old network to the new one “Email linked to it is lost”

I had a XLM wallet since it named "STR" and since it was first appeared in the market. I tried to login into it today and I got this: "The upgraded Stellar network is here! You have: xxxx STR When ...
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Transferring among different assets under the same account

Lets say ive an account with 2 assets USD, GBP and native asset as well. Can i transfer between USD and GBP belonging to same account ? Is it possible
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(Install Error) Package stellar-horizon-postgres is not configured yet

1- I cannot install stellar horizon it gives an error. I tried this solution https://stellar.stackexchange.com/a/2400 but it didn't work. 2- I tried this solution https://github.com/stellar/packages/...
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How to set XLM masternode in local or aws server like btc node daemon

docker commands, I'm using for testing purpose in our local machine docker run --rm -it -p "8000:8000" --name stellar stellar/quickstart --testnet but Where to set config file? How I can create ...
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Native deployment of stellar pubnet

I was trying to setup stellar-core natively ( without docker) but couldn't find relevant docs on setting up databases, permissions ect. Using docker, it's quite simple: docker run --rm -it -p "8000:...
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Unable sync my updated node stellar-core (v11.4.0), Please Help

General information We have a private network based on stellar. I update the new release of stellar-core v11.4.0 but, my node stuck on catching up state and restart over and over. Our network nodes ...
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What is the difference between the preconfigured packages and the binaries

We have different options for installing the stellar-core and horizon specially. What is the difference and where shall a new user start to be able to configure a custom anchor?
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How to setup an anchor in Stellar network using Windows?

While there is a great deal of documentation on installing the packages, however, I couldn't follow it properly to install the stellar-core, horizon and Postgres database in windows. There is not ...
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Why the bridge server in Stellar Network archived?

It seems that the bridge server is archived. Is there any alternative for it? What can be the best replacement for it? Thank you.
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Getting up and running with a Stellar-Core and Horizon with a Database

I am new to the Stellar world and wanted to set up a node (Stellar Core, Horizon and a Database) for the first time to run as an anchor. However, I couldn't figure it out from the documentation how to ...
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Compiling on CentOS & Fedora

I have written spec files for packaging Stellar-core in the CentOS/Fedora and perhaps eventually RHEL. This works locally with the "make check" step however when I run "make check" on the remote ...
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problem running the core+horizon container in standalone mode

I can start a standalone container with this command: sudo docker run --rm -it -p "8000:8000" -v "/home/maxou/stellar:/opt/stellar" --name stellar stellar/quickstart --standalone I can call rest ...
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Would like to know if my stellar node running properly?

Below is what I see on the web frontend at http://my-dummy-stellar-node-domain.com:11626/info To my limited knowledge about Stellar, I see that ledger hash is not changing. Is that a healthy sign? ...
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Transactions vs Operations

Stellar offers a model in which Operations (ops) are aggregated into Transactions (tx) which are aggregated into blocks. You can stuff 100(?) ops in a tx and 100(?) txs in a block (or ledger). but ...
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Stuck in “Joining SCP” state with info “Lost track of consensus”

I just trying to build a private network with two nodes(two different physical hosts) and all of two nodes are validator nodes, but I just stuck in the "Joining SCP" state when I run stellar-core run -...
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How to clean up PostgreSQL database safely?

The storage of VM which installed stellar core and horizon is full. It cannot update latest ledger anymore. How can I safely to clean PostgreSQL database? The stellar core is installed in docker.
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stellar testnet drop my stellar core

I got the ERR_LOAD and drop me. Does anyone know how to figure out where the problem is ? 2019-08-13T02:59:47.846 GDJAU [Ledger INFO] Got consensus: [seq=201440, prev=7c753d, txs=39, ops=98, sv: [ ...
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stellar withdrawal -

I withdrew my stellar twice but it failed. Stellar charged me. How do I get the charges back and why can't stellar transfer coins to coinspot?
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Stellar channel implementation is giving an error “this.source.sequenceNumber is not a function”

i am trying to implement stellar channel concept. i am following stellar channel link. I have created 6 channel accounts. Below is the programme i wrote var destinationId = '...
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Stellar Beta did not transfer XLM yet charged me twice

I tried to withdraw XLM from my trezorto coinspot but it did not o through. Yet your exchanged charged me 2x. Email of trezor below. I have the error message. How do I email to you. Thank you for ...
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Network passphrase of stellar-core (Public Global Stellar Network ; September 2015) does not match Horizon configuration

I runned the stellar-horizon-cmd like this sudo stellar-horizon-cmd serve and I set all configuration parameters as environment variables, but it seems the $NETWORK_PASSPHRASE cannot be passed ...
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How to quickstart to pubnet while install SDF package

I had check previous question switch from testnet to pubnet, However, the answer is not helpful. I had installed stellar SDF package three times and switching pubnet after successfully install. How ...
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Run core with catchup complete

I have a new stellar core instance with CATCHUP COMPLETE true and one stellar horizon instance with INGEST true. I'm totally new with stellar. I've started the core node and it's catching up the data....
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Error in starting multiple test node

I am trying to get multiple test nodes using a single docker compose file. version: "3" services: node1: image: stellar/quickstart ports: - 8001:8000 - 11630:11626 - ...
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Stellar validator node

My question is about running a stellar validator node. Why Starting stellar-core in FORCE_SCP mode requires NODE_IS_VALIDATOR to be set?
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Stellar-core running in Docker container, but not inside supervisorctl. If run in supervisorctl it doesn't use the right config

In the docker container if I run stellar-core using supervisortctl, then logs do not get written to the file I have specified in my stellar-core.cfg, but if I start stellar-core outside of ...
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Inferring operationID from get transactions stream data

Currently, I am getting transaction detail from transaction stream using stellar sdk. So for getting the operation details the envelope XDR is decoded. But the operationID couldn't be retrieved from ...
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Create or recover archive from Postgres core data

Is it possible to create archive from existing Stellar core's Postgres database? Does it have all the data required for creating an archive? Is there any tool to do that?
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Can I change the Path of a Stellar history archive?

In stellar-core.cfg (stellar config file) we need to define a history configuration. The default setting is mkdir="mkdir -p /tmp/stellar-core/history/vs/{0}". Can I change this directory location, or ...
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How to create trustline between issuer's account and receivers accounts dynamically?

I am trying to create a trustline between issuer's account and receiver's account to send Custom Assets(token) I am following this link var StellarSdk = require('stellar-sdk'); StellarSdk.Network....
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How can I validate a stellar address in Python?

I am using python-sdk to perform stellar operations. Now I need to validate a stellar address. I know that the JS sdk has got a function StrKey.isValidEd25519PublicKey(address); however I cannot find ...
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Stop Horizon/Stellar node growing disk usage

I'm trying to find a way to keep Stellar disk usage in check. I only care about the last 24 hours or so of transactions and don't want to over-provision the instance I started a docker container ...
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Where is fee deduced from balance in the source code?

Simple question, but I failed to grep for the answer… It’s sayed balances are already deduced but where ? I mean which file and which line ? // if we are in applying mode fee was already deduced ...
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Unable to sync testnet node

I am using stellar-core in ubuntu 18.04 . I want to create test-network . But my node is unable to sync , it is stuck showing the log For new syntax: stellar-core help 2019-06-07T11:38:26.889 ...
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Validation of federation server

I am trying to validate the address that a client typed to withdrawal his XLM to. Issue is that using the federation sdk takes over 10 seconds and if the address was not found it can take up to a ...
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When total coins will exceed beyond its storage data type

The total initial coins are 1000000000000000000 which is stored in const int64_t data type. Now this particular data type can support maximum 19 digits number. THis whole coin is possessed by root ...
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Full LCL error when running private nodes

I have set up a private Network by three Nodes. After running sometime, showing below message from Node2. 2019-05-27T09:49:55.006 GCTXZ [Ledger ERROR] Full LCL: { hash = ...
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New node is lagging behind the old one

Hi I was doing some experiment (especially after the news of stellar network going down) in my simple 2 nodes private network and got some confusion. Here are the steps I follow: Configured network ...
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Inflation Destination or public address [duplicate]

Why do I have an inflation destination and a public address in my stellarport account. How can I tell if I've received any staking rewards? Thank you!
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Is all the history of ledgers required for consensus?

In Bitcoin when a validator (miner) decides to join the consensus process, the history of all blocks must be downloaded. Is this concept the same in Stellar? We have encountered a scenario where one ...