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.
125
questions with no upvoted or accepted answers
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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 ...
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2
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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.
...
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2
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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 ...
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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: ...
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4
votes
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answers
45
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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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4
votes
1
answer
344
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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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4
votes
1
answer
247
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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="...
4
votes
1
answer
266
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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:
...
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4
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answers
188
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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}"
[...
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3
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answers
27
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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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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:...
3
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0
answers
20
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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 ...
3
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answers
28
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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? ...
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3
votes
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answer
108
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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 ...
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3
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answers
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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 ...
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3
votes
1
answer
315
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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.
...
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3
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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
--...
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3
votes
0
answers
140
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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:
...
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3
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answers
175
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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 ...
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3
votes
2
answers
789
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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 ...
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3
votes
1
answer
161
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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-...
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2
votes
1
answer
131
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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 ...
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2
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31
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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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2
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answers
31
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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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2
votes
1
answer
237
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("...
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2
votes
1
answer
85
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&...
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2
votes
0
answers
123
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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 ...
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2
votes
1
answer
90
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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 ...
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answers
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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: ...
2
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0
answers
27
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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 ...
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2
votes
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answers
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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....
2
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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] ...
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2
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answers
239
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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
{
"...
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1
vote
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answers
7
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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 ...
1
vote
0
answers
20
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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 "...
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1
vote
0
answers
6
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 ...
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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 ...
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1
vote
0
answers
19
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 ...
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1
vote
0
answers
26
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 ...
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vote
0
answers
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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 ...
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1
vote
1
answer
58
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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,...
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1
vote
0
answers
32
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 ...
1
vote
1
answer
125
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-...
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1
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0
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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:...
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1
vote
1
answer
113
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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 ...
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1
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0
answers
46
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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 ...
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1
vote
1
answer
132
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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 ...
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vote
1
answer
210
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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
...
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1
vote
0
answers
14
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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 ...
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1
vote
0
answers
36
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 ...
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