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4
votes
0answers
56 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 ...
4
votes
2answers
54 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. ...
4
votes
0answers
96 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}" [...
4
votes
1answer
69 views

How can I do asymmetric encryption and decryption?

How can I do asymmetric encryption by using Stellar's private key of sender and Stellar's public key of receiver and vice-versa in case of case decryption? I had gone through many methods but I am ...
4
votes
1answer
50 views

Where can I find history files structure (transactions and ledger files specifically)?

I'm trying to extract history files from the archive, I understood that transaction file is built of pairs: (32bit length,data), but when I try to extract the data from a single stream I get error: ...
4
votes
1answer
71 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 ...
3
votes
2answers
39 views

Stellar's Quorum Structure

In the Stellar whitepaper, there are examples of various Quorum structures. Which one does Stellar use? Is there a visual representation that I should look at?
3
votes
0answers
14 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? ...
3
votes
1answer
54 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: ...
3
votes
1answer
66 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="...
3
votes
0answers
31 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 ...
3
votes
1answer
83 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: ...
3
votes
0answers
110 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 --...
3
votes
0answers
91 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 ...
3
votes
1answer
66 views

compliance server error when trying to access stellar.toml file

I am testing compliance, bridge and federation servers simulating payments between two FI One of my compliance servers is displaying the following error when trying to contact the other FI: err="...
3
votes
1answer
73 views

Random crash upon calling KeyPair.random() on android

I'm trying to use the stellar sdk in an android app. So I downloaded the stellar sdk and generate it's jar and include it in as a external jar in my android app. To get it working I also had to add ...
3
votes
2answers
36 views

(SCP) When does a node get its higher-layer software's input?

According to the SCP document (draft-mazieres-dinrg-scp-04, https://datatracker.ietf.org/doc/draft-mazieres-dinrg-scp/), the following paragraph describes how a node get its higher-layer software's ...
3
votes
0answers
62 views

Is the Stellar Consensus Protocol paper peer reviewed?

Is the stellar consensus protocol peer reviewed? If yes, could you share some resources pointing to the peer review? If not, what would need to happen to have a peer review of this part of the ...
3
votes
1answer
82 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-...
3
votes
1answer
164 views

Backfilling nodes that have ledger gaps

One more for you: What are the steps to make horizon db backfill to a specific elder ledger number? A core node may not be fully synced and may have ledger gaps.
2
votes
0answers
8 views

Unable to find 5 sec slot timing in code base

I was trying to understand the stellar code base and was looking for a place where 5 sec slot timing is hardcoded (if I am not wrong). But unable to find that, instead in ovalayManagerImpl.cpp file I ...
2
votes
1answer
32 views

Kelp for very beginners

I have no coding experience at all but would like to use Kelp. I have managed to get it running on CMD.exe but have no clue what im doing. If anyone has a little spare time, could you please put out a ...
2
votes
1answer
46 views

Error while installing stellar core

I am trying to follow this tutorial in order to build a private stellar network. https://labs.imaginea.com/post/stellar-bc-wallet/ And i am still trying to install stellar-core. when i ran ./configure ...
2
votes
0answers
11 views

If stellar bridge goes down, how to retrieve previous transactions?

Let's say that my Stellar bridge server is down for a period of time. How do I retrieve all the transactions that come to my address during that time period using stellar bridge?
2
votes
0answers
26 views

How to set correct hostname in Horizon?

What is the correct way to set a hostname in Horizon? Hosting server is configured to horizon.stellar.domain.com but within Horizon the generated paths for all href attributes show http://horizon/......
2
votes
1answer
32 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 ...
2
votes
1answer
64 views

History configuration? (404s)

I'm attempting to get a full-history horizon & core setup going, and I'm running into 404s fetching history buckets, with every combination of configurations I've seen on stackexchange and in the ...
2
votes
0answers
55 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....
2
votes
0answers
87 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: ...
2
votes
1answer
92 views

Error while transaction submission in the private network

So I am trying to do a transaction in the private network, I have named it standalone, I am using SSL. I started the network using docker, then created a keypair, then in another terminal ran node to ...
2
votes
0answers
41 views

Legal Question before going live

As I'm getting closer to have a product (timed payments) which I would like to activate on the Stellar public net, I'm wondering which legal aspects I have to consider. The setup for the current ...
2
votes
0answers
108 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 { "...
2
votes
2answers
478 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 ...
2
votes
0answers
27 views

Bifrost gives Internal server error 500

I am getting an internal server error if (requestData === undefined) { requestData = null; } // Send the request request.send(requestData); // The error is given at this line ...
2
votes
0answers
99 views

Problem with bridge-server ERRO[0062] seen every 60 sec

This server was working fine with this config for like over 12 months with this same config. Now for reasons unknown I get: WARN[0001] accounts.authorizing_seed not provided. /authorize endpoint will ...
1
vote
0answers
6 views

Does weighting votes proportionally to lumens held open the door to rent capture?

The scenario where a group of account holders owning the majority of lumens pool their votes and decide to capture all inflation seems at least theoretically possible. In that scenario, members of the ...
1
vote
1answer
17 views

How to fix withdrawal / deposits limits for a custom asset?

I am working on a private Stellar network with Docker and Stellar Laboratory. I have deploy an asset with issuing and distributor accounts, but i want to establish some daily limits for withdrawals ...
1
vote
0answers
4 views

SCP Safety Guarantee Question

I have a question regarding the Stellar Consensus Protocol. In the SCP whitepaper it is stated on page 14 under the point 5.4 "Accepting is not enough": "But as discussed in Section 4.1, the only ...
1
vote
0answers
25 views

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 ...
1
vote
0answers
16 views

pBFT in closed 100 node setup

Can Practical Byzantine Fault Tolerance (pBFT) be considered as one of the quorum configurations of SCP of stellar? I am considering the situation where the 100 nodes are run in a closed network.
1
vote
0answers
9 views

What is difference between history and bucketlist?

I am unable to understand the difference between history and bucketlist. As per documentation, bucketlist is used for: Efficiently transmitting a minimal "delta" of changes to the set when a peer ...
1
vote
0answers
18 views

Why is the /paths endpoint on my custom Horizon deployment abnormally slow?

I was wondering if anyone has an idea what could be causing our Horizon (0.17.6) /paths endpoint to be extremely slow. A simple query takes 1m22s on our custom deployment. On public SDF Horizon the ...
1
vote
0answers
48 views

Troubles Setting up Private Stellar Network

I am trying to setup a stellar private network for experimentation purposes. Unfortunately, no matter what i do, the nodes end up not being able to sync up. Mostly, as soon as I change the network ...
1
vote
0answers
31 views

How to update the transaction fees in private network - normally it is 100 stroops

I have updated the config file by putting the below value COMMANDS=["upgrades?mode=set&upgradetime=1970-01-01T00:00:00Z&basefee=1&basereserve=1"] By using the command stellar-...
1
vote
1answer
31 views

How to generate public key using SDK in salesforce?

I want to integrate stellar with a Salesforce application. and I am stuck at generating a public key and secret key. I am a little confused regarding SDKs, how can I use an SDK in the apex? Can I ...
1
vote
1answer
19 views

SCC: why are there 2 SQL files?

The SCC (Stellar Core Commander) is a tool used to generate a "state" for Horizon's tests. When I run it against an .rb script, it generates a single .sql file - essentially a 'pg_dump' of the sql ...
1
vote
1answer
30 views

“No converter found for return value of type: class org.stellar.sdk.requests.TransactionsRequestBuilder” when getting transaction history

This is my code for transaction history: @RequestMapping(value = EmpRestURIConstants.TRANS_HIS, method = RequestMethod.POST) public @ResponseBody TransactionsRequestBuilder transactionHistory(@...
1
vote
1answer
23 views

Can the docker quickstart allow me to test out “becoming an anchor”?

Or must I set up according to the Administration documentation then follow the steps on configuring a bridge server, federation server, etc. As the documentation steps in becoming an anchor seems to ...
1
vote
0answers
19 views

stellar-core on CentOS 7 - systemd issue

I run stellar-core on CentOS7. When I run by using command line, everything is fine, and I can create account. However, when I run it on systemd, I always encounter timeout failure The user I ...
1
vote
1answer
49 views

How to listening new XLM transaction for multiple accounts

I'm totally new in stellar network. I have experienced create transaction listener for bitcoin and ethereum by listen to every new transaction, if that transaction contain my address it send callback ...

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