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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externally connect to my stellar node

I created a private stellar node on my server using the documentation, when i am trying to externally connect to my node using curl i get the following error on stellar-core: "[Overlay ERROR] TCP: ...
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Stellar-core catch up failed

My stellar node stop syncing with such error: 2020-01-15T05:43:46.809 GAES7 [History DEBUG] Verifying ledger headers from /mnt/volume_lon1_01/buckets/tmp/catchup-425e2f74558fb272/ledger/01/a7/8a/...
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Is a network of non-validators really necessary?

From my understanding, stellar-core nodes (i.e., including watchers and validators) will arbitrarily connect to other nodes by default (i.e., no preferred peers set). While it makes sense for watcher ...
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Using the STELLAR LABORATORY (HORIZON) UI to interface/connect to a LOCALHOST Standalone STELLAR core network

I am new to the Stellar network and would like to TEST Stellar's capabilities - via a standalone implementation (http://localhost:8000) of the 'STELLAR/QUICKSTART' on my MAC laptop. The installation ...
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stellar-core v.12.2.0 History ERROR

I've run my node for several months without any problem. I haven't changed any configs but it's a week or two my node started to stop syncing with such error: 2020-01-06T21:36:26.540 GDDVE [History ...
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Stellar Core Stuck at Catching up or Joining SCP

I'm trying to get a basic version of Stellar Core setup in Docker using the stellar/quickstart image. One of the problems I'm running into tho is that the state is stuck at Catching up or Joining SCP....
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Path payment is taking only 4 hops BUT stellar is mentioning upto 6 hops

Let assets are A,B,C,D,E,F I have created few orders like A->B B->C C->D D->E E->F Now, i have created an order where user1 is selling "F" to a destination user2 and the ...
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Stellar Netwok AWS Storage Volume

I had set one stellar network up on AWS with 500 GB HD near about one year ago. Now storage is approx 90%. Is there any way to remove old ledger,old history to increase the HD.
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Storing image file on stellar network

I am trying to insert an image into Stellar private network. I have gone through all the operations but did not find anything. Any new update with Stellar protocol version 12?
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Store Large volume data

Is there any way to send data over memo more than 28 bytes. As I have done one experiment to send data greater than 28 bytes using SHA256 algorithm but it can not be decoded. So any method regarding ...
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upgraded horizon version, newly added tables is not synchronising with stellar core private network

Stellar core version is 12.2.0. Recently i upgraded my horizon version from 0.17 to 0.23. while running, it showed me an error that i need to "horizon db migrate up". Post doing that it basically ...
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Can't stop stellar-core using supervisorctl inside quickstart docker image

I want to stop stellar-core to make some changes in config file. The only way to stop it is to use supervisorctl but when I enter supervisorctl stop stellar-core I get unix:///var/run/supervisor....
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Testing stellar anchor

I am in process of testing a build of stellar anchor. I am using https://gostellar.org/app/ for this. Everything goes well till the point where the transaction is submitted to the network. I get ...
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1answer
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Printing a PublicKey in C++

I've tried to print via: void printQuorumSet ( SCPQuorumSet set ) { for (auto validator: set.validators) std::cout << validator << ' '; } But that gives me: scp/test/...
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1answer
22 views

How to set a Stellar node to a watcher node?

I have seen your support docs, it shows me the config file which is to set a public network or testnet node, but it looks like a full validator. Now I want to set it to "Watcher" mode, but I can't ...
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Horizon-Go Returns [Resource is missing] Exception

I'm using stellar-core last stable release & stellar/go last stable applications. Stellar Core : v12.2.0rc1 Horizon : https://github.com/stellar/go OS : Ubuntu 16.04 I installed stellar-core ...
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Add maximum XLM on Standalone Network

Currently, Stellar Network has maximum 100 Billion lumens. I want to ask if it is possible to add more lumens to existing Standalone (private) Stellar Network?
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How do I turn on experimental ingestion on a standalone network?

I'm trying to turn on experimental ingestion on my standalone network so that I can try out the strict-send path finding endpoint, which doesn't seem to be implemented with the non-experimental ...
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23 views

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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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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1answer
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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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1answer
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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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1answer
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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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2answers
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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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1answer
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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....