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.

124 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5 votes
1 answer
264 views

Stellar-core not syncing on testnet after restart. Missing Buckets not being retrieved

After attempting to restart a stellar core node I had running on the test net I got an error, and when I tried to run stellar-core (inside docker container) with stellar-core run I got the following: ...
user avatar
5 votes
0 answers
89 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 ...
user avatar
  • 576
5 votes
2 answers
150 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. ...
user avatar
  • 316
5 votes
2 answers
126 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 ...
user avatar
  • 171
4 votes
0 answers
148 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: ...
user avatar
  • 141
4 votes
0 answers
38 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: '...
user avatar
4 votes
1 answer
212 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="...
user avatar
4 votes
1 answer
248 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: ...
user avatar
  • 193
4 votes
0 answers
183 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}" [...
user avatar
  • 649
3 votes
0 answers
19 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 ...
user avatar
3 votes
1 answer
266 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 = '...
user avatar
3 votes
0 answers
27 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? ...
user avatar
  • 649
3 votes
1 answer
90 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 ...
user avatar
  • 229
3 votes
0 answers
47 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 ...
user avatar
3 votes
1 answer
300 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. ...
user avatar
  • 31
3 votes
0 answers
194 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 --...
user avatar
  • 31
3 votes
0 answers
169 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 ...
user avatar
  • 121
3 votes
2 answers
747 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 ...
user avatar
3 votes
1 answer
147 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-...
user avatar
  • 1,517
2 votes
1 answer
99 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 ...
user avatar
2 votes
0 answers
26 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 ...
user avatar
2 votes
0 answers
31 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 (...
user avatar
  • 105
2 votes
1 answer
73 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&...
user avatar
2 votes
0 answers
119 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 ...
user avatar
2 votes
1 answer
67 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 ...
user avatar
2 votes
0 answers
54 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: ...
user avatar
2 votes
0 answers
26 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.
user avatar
2 votes
0 answers
22 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:...
user avatar
2 votes
0 answers
26 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 ...
user avatar
  • 649
2 votes
0 answers
94 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....
user avatar
2 votes
0 answers
58 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] ...
user avatar
2 votes
0 answers
134 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: ...
user avatar
2 votes
0 answers
223 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 { "...
user avatar
  • 315
1 vote
0 answers
13 views

remove token from wallet - transaction blocked by issuer

I've got a fishy token in my wallet that I can not remove or send to anybody, because the issuer has blocked my account for sending this asset. How do I get rid of such assets? My XLM are blocked and ...
user avatar
1 vote
0 answers
34 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 ...
user avatar
1 vote
1 answer
30 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,...
user avatar
  • 11
1 vote
0 answers
27 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 ...
user avatar
1 vote
1 answer
85 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-...
user avatar
1 vote
0 answers
24 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:...
user avatar
  • 111
1 vote
1 answer
61 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 ...
user avatar
  • 188
1 vote
0 answers
24 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 ...
user avatar
1 vote
1 answer
96 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 ...
user avatar
  • 131
1 vote
0 answers
12 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 ...
user avatar
  • 11
1 vote
0 answers
35 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 ...
user avatar
  • 11
1 vote
0 answers
61 views

Catching Up Stellar Core Not Completed in a Long Time

I'm trying to run the stellar core and the horizon on my server using stellar/quickstart docker image. It's been a week since I started and it didn't synced. On the configuration file stellar-core.cfg,...
user avatar
1 vote
0 answers
31 views

Problems when running on ClearOS7/Centos7

In order to get stellar-core running on ClearOS7 (binary compatible with Centos7), I have had to use postgresql from one of the SCLo repos (Special interest groups) as the normal Centos version of ...
user avatar
  • 11
1 vote
0 answers
26 views

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 ...
user avatar
  • 11
1 vote
0 answers
82 views

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 ...
user avatar
1 vote
0 answers
81 views

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 # ...
user avatar
  • 11
1 vote
2 answers
1k views

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 ...
user avatar