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.

118 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5 votes
0 answers
95 views

Stellar-Core won't sync anymore: "Replay failed: mismatched ledger hash"

Stellar-core was running smoothly, then crashed without log entries. Node now fails to catch-up and sync. Logs are complaining about a mismatched ledger hash and I am stuck in an endless loop of ...
marcinx's user avatar
  • 586
5 votes
2 answers
159 views

Own stellar horizon is not showing data prior to own instance launch date

I run a stellar node using the docker quickstart image and due to some syncing error the underlying ec2 instance was terminated and restarted on 2018-12-28T10:45:19Z, state of core is Synced. ...
shredding's user avatar
  • 316
5 votes
2 answers
140 views

What is the process for the community to propose an XLM lockup?

Let me start by saying I am not proposing a wholesale token "burning" as I believe that could have unintended negative consequences long term. However, considering the tremendous price appreciation ...
Ngb19's user avatar
  • 171
4 votes
0 answers
235 views

Difficulty installing stellar-quickstart on Ubuntu 20.04 LTS

As the title suggests I'm having some difficulty installing stellar-quickstart via packages. my system details: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: ...
Ramy's user avatar
  • 141
4 votes
0 answers
46 views

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: '...
Deepak Tomar's user avatar
4 votes
1 answer
358 views

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 = '...
Suman Raj's user avatar
4 votes
1 answer
259 views

Timeout after 6000ms after submitting a transaction

Whenever I submit a transaction I get a timeout error (after 60 secs). The server is a docker quickstart image in standalone mode. To solve the issue I am have to run the image with -e LOG_LEVEL="...
Massimo Nicolardi's user avatar
4 votes
1 answer
272 views

Using S3 as Archive for Standalone Node

I assume this is a classical How To. But i can't find the answer. How do I configure S3 as archive for a standadlone stellar node? Here is what I did: 1) Started the node with quickstart template: ...
Klaus's user avatar
  • 193
4 votes
0 answers
191 views

Stellar-core failing to initialize history archives to S3

My archive setups are configured like this: [HISTORY.v1] get="aws s3 cp s3://my-bucket/v1/{0} {1}" put="aws s3 cp {0} s3://my-bucket/v1/{1}" [HISTORY.v2] get="aws s3 cp s3://my-bucket/v2/{0} {1}" [...
B.Li's user avatar
  • 649
3 votes
0 answers
27 views

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.
Shan Gorai's user avatar
3 votes
0 answers
28 views

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:...
Prashant Prabhakar Singh's user avatar
3 votes
0 answers
20 views

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 ...
Philip Mather's user avatar
3 votes
0 answers
30 views

How does Stellar-Core handle multiple archives in a secure manner?

For a stellar code, if a node is configured with multiple history archives for reading, presumably from sources of different nodes. How does this node handle discrepancies between the historical data? ...
B.Li's user avatar
  • 649
3 votes
1 answer
118 views

Getting an old build and set up stellar core

I want to set up old build (not using docker). If I download the source code, how do i build the core from that? Say I download v10.2.0rc4 from https://github.com/stellar/stellar-core/releases. I ...
sweta's user avatar
  • 239
3 votes
0 answers
56 views

Change stellar quickstart docker from ephemeral to persistent without shutting it down

I made the mistake of running my Stellar instances with the -v "/home/Drew/XCoin:/Drew/XCoin" flags instead of the required -v "/home/Drew/stellar:/opt/stellar"flags that Stellar recommends on the ...
Drew Patel's user avatar
3 votes
1 answer
318 views

What are the good configurations for having a running cluster of 3 nodes?

I am trying to set up a private stellar cluster with at least 3 nodes. I am able to setup a 2-nodes cluster but when it comes to add another node, the cluster is broken and only one node is synced. ...
Parker's user avatar
  • 31
3 votes
0 answers
198 views

Docker image installation private network detailed instructions

I am able to install a stand alone network on an aws ec2 instance with the command docker run --rm -it -p "8000:8000" -v "/home/scott/stellar:/opt/stellar" --name stellar stellar/quickstart --...
OECO's user avatar
  • 31
3 votes
0 answers
142 views

Can't continue stellar-core sync. Stuck in Joining SCP

I'm in the middle process of stellar-core sync, but I need to restart my server for some reason so I stopped the stellar-core sync. Then when I continue the sync process I keep getting this message: ...
user1621's user avatar
3 votes
0 answers
178 views

Where should the stellar-core root account seed be stored?

Should the root account seed from stellar-core be stored in the stellar-core config? After upgrading to the latest version of stellar-core, I'm not able to find the transactions related to the ...
Anthrose's user avatar
  • 131
3 votes
2 answers
805 views

Horizon waiting for Stellar-core to sync

I have built stellar-core and horizon instances from source on Ubuntu 18.04 LTS. I managed to make them work for the test-net, yet now, whilst trying to configure stellar-core.cfg for the public ...
M.Bradascio's user avatar
3 votes
1 answer
170 views

How to use MANUAL_CLOSE in core config?

The example config states that "Ledger will only close when stellar-core gets the manualclose command". On a new private testing network (ledger#=1), after setting MANUAL_CLOSE=true, I did stellar-...
cesarm's user avatar
  • 1,527
2 votes
1 answer
155 views

List of Anchors for Sep31 and SEP24?

Is there a list of anchors available that I can access to see if I'm interested in using any of them? It is proving rather tedious to find anchors through a google search. I am already making API ...
Stellarade's user avatar
2 votes
0 answers
31 views

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 ...
Alex Smith's user avatar
2 votes
0 answers
32 views

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 (...
Poliakoff's user avatar
  • 105
2 votes
1 answer
260 views

`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("...
pizi's user avatar
  • 21
2 votes
1 answer
94 views

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&...
Andrej Mitrović's user avatar
2 votes
0 answers
124 views

No communication between Ledger Nano S and Stellar account viewer

If I try to connect the ledger Nano S to the Stellar account viewer, the relating field in the account viewer does not turn blue, but stays grey. So the ledger has not been detected by the account ...
Ben Konink's user avatar
2 votes
1 answer
97 views

Issue with History Archive - second node not syncing with the first

I ran second node but it's not reaching consensus with the first node. I think second node will sync up with the first node with History Archive. I ran the second node but it's giving 'Lost track of ...
Sayooj Mandodi's user avatar
2 votes
0 answers
65 views

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: ...
Yasser Noureldin's user avatar
2 votes
0 answers
27 views

How to create my own operations

I'm looking to alter stellar-core for my project, which deals less with financial transactions and more with data storage. I want to essentally rip out some of the operations such as allowTrust and ...
B.Li's user avatar
  • 649
2 votes
0 answers
97 views

History buckets not found in history.stellar.org

After update to stellar-core 10.0.0rc4 I got history issue. Synchronization is stuck. Here is errors: 2018-09-14T14:08:36.090 GCUCN [default INFO] Loading last known ledger 2018-09-14T14:10:19....
Andrii Kurilik's user avatar
2 votes
0 answers
59 views

Dropping peer, but peer seems to be fine

In Stellar Core 10.0.0, I keep seeing log entries like this: I 2018-09-25T03:35:16.416 GBCS2 [Overlay INFO] New connected peer 52.55.85.153:11625 I 2018-09-25T03:35:16.516 GBCS2 [Overlay INFO] ...
Ramon Tayag's user avatar
2 votes
0 answers
251 views

How to resolve 500 Internal Server Error on /transactions/<hash>/operations?

My node returns an error when I query the /operations endpoint in horizon. curl http://127.0.0.1:8000/transactions/73ce2618095d2c17bdaf08a6a6617cef549f974b1619f03b84eb46747e5e4eb0/operations { "...
relik's user avatar
  • 315
1 vote
0 answers
21 views

Stellar horizon shows "Still Ingesting" after 5 days

I am running stellar-horizon on ec2 server I cloned stellar-core from git clone https://github.com/stellar/stellar-core.git and installed it. I installed horizon from the package manager with the ...
sqrl's user avatar
  • 11
1 vote
0 answers
30 views

Contract invoke error: 'Contract pre-release number does not match host' on Stellar using Soroban

I have deployed the crowdfunding contract on Stellar's Futurenet. When I invoke the contract functions on the terminal using the soroban cli, it gives the error contract pre-release number does not ...
Muhammad Zaryab Rafique's user avatar
1 vote
0 answers
25 views

Can't figure out tx_bad_seq in python3 stellar_sdk bot

I have created a bot using the python3 library stellar_sdk and i running multiple but with different coin pairs instances of this bot on my server but after a few times I get this error "...
hax-13's user avatar
  • 11
1 vote
0 answers
9 views

HISTORY_STALE_THRESHOLD option doesn't work

After referring to this documentation, I set HISTORY_STALE_THRESHOLD to 0 to prevent 503 Historical DB is too stale error when I submit a transaction. This stellar-core code says 0 is the default ...
himori123's user avatar
1 vote
0 answers
12 views

History: Bad ledger-header history entry

I am running a stellar private network which is my own network. It is working fine for firing the transaction. But I have found that if I want to send transaction for particular some of accounts ...
Alex Smith's user avatar
1 vote
0 answers
22 views

Creating Trust line in Go

I am struggling to set a Trustline. Create account Send Funds to New account Set Trust for a Token Send the Token. I am having a big problem trying to get step 3 working, many online examples are ...
Cyberience's user avatar
1 vote
0 answers
127 views

How to recover an old Stellar account?

I have tried to recover the account at https://launch.stellar.org/#/recovery with a username and recovery code, but I get the following message: Recovery disabled. Account can't be recovered by ...
user4930's user avatar
1 vote
1 answer
69 views

What API to use to get metadata of asset issuers?

I am trying to get the metadata (such as organization name, logo) of asset issuers in the Stellar network. What API should I use that could possibly contain this information when I pass the Public Key,...
Benji's user avatar
  • 11
1 vote
0 answers
33 views

Standalone network error: tx_not_supported

We have built a Standalone Network with 3 Stellar nodes as full-validators and horizon. Every node and horizon run the 18.0.4 version in a docker container and can access node's history thanks to ...
Massimo Tamburini's user avatar
1 vote
1 answer
142 views

Liquidity Pool Deposit Operation Min/Max Price?

Does anyone know what the Min/Max Price parameters on the Liquidity Pool Deposit operation do at a conceptual level? https://developers.stellar.org/docs/start/list-of-operations/#liquidity-pool-...
AndyPrince's user avatar
1 vote
0 answers
55 views

How can Stellar timestamps be manipulated, and how accurate are they in practice?

Stellar can be used for Trusted timestamping via e.g. the STELLARAPI.IO. As described here at How are timestamps deemed invalid? it seems that the code enforces two checks on timestamps: monotonicity:...
nealmcb's user avatar
  • 111
1 vote
1 answer
121 views

How to reserve a transaction sequence number?

I have a multisig account and need to initiate a transaction for set option operation. So prepared a transaction which will be expired in 7 days and within this time all (3 out 3 signers) has to sign ...
Sohan's user avatar
  • 188
1 vote
0 answers
59 views

Performance issues ingesting historical data with stellar-horizon

We are trying to setup a captive core with Horizon API server with historical data as far as block 28960000 (since our token got used since then). Installation and initial sync went smooth but ...
Bert Coesens's user avatar
1 vote
1 answer
137 views

How to stop evergrowing disk usage by Stellar node

Disk usage is growing steadily and we cannot find the solution. There are two questions from about 2-3 years ago: Stop Horizon/Stellar node growing disk usage Pruning and keeping disk usage low But in ...
hotbit's user avatar
  • 131
1 vote
1 answer
248 views

I wanna my private blockchain network with stellar

I wanna my private blockchain network with stellar but it's not working here is my configure # What port stellar-core listens for commands on. This is for Horizon server. HTTP_PORT=11626 ...
zena's user avatar
  • 11
1 vote
0 answers
14 views

Is there a browser-based client-side version of freighter-api?

Is there a browser-based client-side version of freighter-api, so it can be used without installing on the server? For example, web3.min_1.36.js can be used as a script tag in an HTML file that is run ...
Dan's user avatar
  • 11
1 vote
0 answers
37 views

Running Multiple Stellar-core Instances on One Server

If your server quadruples the system requirements for running a Stellar-core node, can you run multiple instances of the software at the same time on one bare-metal machine? If you use a NVME or PCIE ...
A ceo's user avatar
  • 11