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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1answer
389 views

HTTP end point error while try to run in Testnet port

I am relatively new to this stellar-core testing and this is the first post of me on stack exchange, if there is any wrong format or mistake, please tell me. I am here because I have met some problems ...
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1answer
165 views

How do I retrieve the source account, memo, and amount using python?

How can I retrieve: transaction amount memo source Account from envelope_xdr using the python sdk?
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2answers
697 views

What can cause horizon to have incomplete data?

On a private network, I have 5 core nodes and 5 horizon instances, all of the horizon services were not configured with "history-retention-count", so according to this, this variable to should default ...
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1answer
298 views

For 'txBadSeq', when is tx_fee charged?

Test Plan: The testing transactions were all "Pay 0.0001XLM", and there is far enough XLM to send. 5000 channel accounts were set up to try to prevent bad seq, but unfortunately it still ...
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1answer
106 views

When do validators know to push the data from the latest ledger to archive nodes?

As Validators agree on the latest transaction sets to apply to the ledger when do they know to update the data being stored in the archive nodes? Is it based on the owner of an archive node listening ...
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2answers
247 views

Should Every Node Contain The Same Quorum Set Configuration?

Suppose I want to set up four nodes: A, B, C, D. I want A to trust B, and C to trust D, so the set is denoted by {{A, b}, {C, D}}. I want to set up a situation where either one of these sets can vote ...
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85 views

Private Testnet 404 issue

I am working on stellar private testnet setup, i have setup 3 stellar-core nodes and horizon, Account creation is working fine but data not showing for ledger, payment, transactions etc. All 3 nodes ...
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1answer
194 views

Stellar failure safety with UNSAFE_QUORUM false

Stellar failure safety is defined as n = 3f+1 <=> f = (n-1)/3 n is number of node and f is failure safety. I have setup 3 nodes with my quorum and THRESHOLD_PERCENT=67 but it is not ...
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1answer
921 views

Stellar Horizon not synchronizing

Background: Using satoshipay/stellar-horizon:0.11.1 for Horizon Stellar Core seems to be running. Based on logs, we get the latest sequence number and ledger: 2018-04-18T10:31:32.695 GDYMW [Ledger ...
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1answer
132 views

How does the Stellar Network prevent an actor with small quorum intersection from halting the network

I am thinking through some of the edge cases of adversaries attempting to compromise the Stellar Network. Let's say an adversary creates four consensus bearing Stellar-core nodes and runs all four of ...
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1answer
132 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-...
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1answer
221 views

Unable to save data using Horizon on private testnet

I have a Horizon server 0.12.3 and Stellar-Core 9.2.0rc6 running locally. When I send a create account operation using the root account as the source, the new account creates properly. However, when ...
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1answer
244 views

Good methods for Stress Test to prevent tx_bad_seq?

During a manual stress test with js-stellar-sdk, some transactions may be responded slower (e.g. 10 sec). At high TPS, asynch programming possibly causes server.loadAccount() to get the same tx_seq, ...
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1answer
114 views

Info on metrics

Is there any documentation as to what each of the metrics outputted by stellar-core -c metrics means? In particular, I'm interested in determining the number of transactions reviewed by a particular ...
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2answers
326 views

Core full catchup time to completion

So our c5.xlarge instance in AWS is processing about 1k checkpoints per day on average. With somewhere around 275068 checkpoints, it would take around 275 days to complete the full sync. Now the rate ...
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2answers
291 views

What does it mean with "surge pricing in effect" at Stellar-Core?

As I tested my private network by flooding transaction (around 60TPS) via Horizon using JS-sdk, SCP errored. The only abnormalty that I observed was: [Herder WARNING] surge pricing in effect! 142 ...
6
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1answer
94 views

Should an address be restricted from sending unlimited XLM to itself?

Hello Stellar Community, While testing our wallets yesterday we noticed that an address is able to 'send' itself more XLM than the current total supply limit, ex: 105 Billion XLM. Although the net ...
3
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1answer
221 views

What does v blocking node set mean?

I have just started with stellar. I am not able to understand v blocking node set and how do they block progress of a particular node. "An FBA protocol can guarantee liveness to a node 𝑣 only if 𝐐(...
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0answers
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stellar-core process is killed with stellar-core: bucket/FutureBucket.cpp:114: void

I am now setting up stellar-core in my amazon cloud services. I have tried to run with "./stellar-core &" however, it is showing the below messages on the phase of "Catching up: applying ...
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2answers
1k views

stellar-code stuck with Joining SCP

I have a private network running on my local mac laptop. The network has two nodes. Both the nodes were syncing correctly on Friday, March 16, 2018. I shutdown the nodes by ctrl c. Now when I start ...
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1answer
166 views

Running into an invalid quorum set error when running stellar-core

I installed stellar-core and all the tests passed. I used docs/stellar-core_example.cfg and tried to run stellar like so stellar-core -D stellar-example.cfg but I'm getting an error 2018-03-16T17:...
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1answer
43 views

how to move stellar lumens locally in the same node? like bitcoin-cli move

I am now making integrated API in my company exchange. Now, looking for "move" function in horizon. Is there any command like the below? bitcoin-cli move "timotei" "akiko" 0.01 6
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1answer
510 views

Must I Become an Anchor

I am working for a FinTech startup (Altalix). We provide blockchain-based currency transactions. Our beta app' has been tested on Ethereum, but I'm looking at alternatives, too. Altalix is UK FCA ...
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1answer
414 views

Stellar smart contract

Where does the stellar smart contracts stored. Its storing in blokchain (similar like ethereum) or its runs separately and storing only the signed transactions?. As i know stellar stores only the ...
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2answers
746 views

Multiple stellar-nodes not syncing

I am running a private network on a MAC laptop with 2 nodes Node 1 HTTP_PORT=11626 PEER_PORT=11625 PUBLIC_HTTP_PORT=false RUN_STANDALONE=false NETWORK_PASSPHRASE="My Network ; March 2018" NODE_SEED=...
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1answer
175 views

Maximum Total Supply

What is the maximum Total Supply can be created for token in Stellar? I tried to make 100,000,000,000,000 but can't.
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2answers
92 views

How Horizon makes use of stelar-core?

By definition Horizon acts as the interface between stellar-core and applications, and apparently it needs access ... HTTP API that is published by stellar-core. Is there a place where this API is ...
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1answer
90 views

What is the storage size and growth rate for the Live network?

I would like to sync with the live net, but so far couldn't search for any discussion on the costs and growth rate (archive & postgres). Thanks in advance.
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1answer
94 views

Are the stellar history (XDR) files available in other regions or on other cloud providers

Most of the documentation or configuration info I have seen reference the history.stellar.org bucket on AWS S3 as the official source of history data. This bucket appears to be in the eu-west-1 (...
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1answer
86 views

Do Stellar and Ripple collaborate?

Do Stellar & Ripple organizations communicate/collaborate? Or are they totally separate companies that do not work together?
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2answers
539 views

How can I decode Ed25519 addresses to the regular 56 letters format?

I've been trying to use the stellar-archivist command 'dumpxdr' to unpack transactions files that are stored in the stellar core history However the in the results asset codes and addresses appear in ...
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1answer
313 views

How can I unpack Stellar's XDR history files?

Inside the Stellar core history archive there are these folders: bucket history ledger results scp transactions So inside of the transaction folder: └── transactions └── 00 └── 72 ├...
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1answer
136 views

How could I create an AutoSequence in a private testnet with the golang SDK?

With the DefaultTestNetClient implementing the SequenceProvider interface, when we use a private testnet, how would we need to implement this since without it (I guess) transactions cannot be ...
5
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1answer
291 views

How can I find out the seed key for my genesis account on a local testnet?

Since I am running a local testnet of stellar-core, I was wondering if there is a way to determine the seed key for the genesis account ? I currrently have only one account on my local testnet. TIA.
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2answers
444 views

Create & fund account via Horizon API

How can I create a new account in testnet with just an HTTP call to the Horizon rest API something like this: serverip:8000/friendbot? The docs say to use an SDK, but I want to integrate from an ...
3
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2answers
452 views

How to configure the quorum set when some non-SDF nodes are not validating?

After checking that my stellar-core node was hanging with status Joining SCP, and seeing in the debug messages that the SCP was receiving all the envelopes normally, I realized that the problem was ...
6
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1answer
3k views

How to withdraw Stellar lumens into USD?

I was one of the (lucky?) people to have signed up for Stellar and now have about 6000 lumens, but I have no clue how to convert it into USD i.e withdraw . Also wondering is there a fixed rate of ...
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1answer
211 views

Upgrade an existing stellar core

How do I upgrade an existing stellar-core to the latest updated code in git? I tried finding out but couldn't get any details. NOTE: I have built stellar_core from source code and not used the ...
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1answer
172 views

SQL Database and Stellar Ledger State

Browsing through src code, saw below line in https://github.com/stellar/stellar-core/tree/master/src/database: The Database object manages connections to an SQL database, in which the current ...
2
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1answer
77 views

Stellar Ledger / Hash uniqueness

I've seen many transactions with the same hash. However, is it safe to say that ledger/hash pairs are unique and there are no scenarios where two transactions on the same ledger share a hash?
3
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1answer
334 views

Peer rejected while connecting to testnet - core v9.1.0

I recently compiled the source code for stellar-core (v9.1.0-31-g1380e88) and I'm trying to run it in the testnet, but it doesn't connect to any of the KNOWN_PEERS, constantly giving me the warning [...
3
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1answer
195 views

How is the node ID assigned to a stellar core node?

Running the quorum command on a stellar-core node will presumably show the current node ID. The node ID looks like a stellar public account key. How is this assigned? Is the similarity to a public ...
2
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1answer
323 views

Issue establishing SCP with Public Network

I've successfully set up a watcher node on the TestNet and I'm trying to do likewise on the public network now. I've been using an adapted stellar-core.conf from the docs that looks like this: ...
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2answers
299 views

How/where can I host a stellar-core watcher node outside of local?

I've recently gotten a stellar-core watcher node up on my local machine and built another separate console application to interact with the database. The database itself is hosted with Amazon RDS. The ...
2
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1answer
97 views

How to connect to peers/store into account/accountdata tables when running stellar-core on windows?

I set up stellar-core on windows following the windows installation instructions. I was able to build the solution successfully and am able to run "stellar-core" from the command line. I've set up a ...
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2answers
118 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 ...
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1answer
52 views

Why is asset conversion limited to 6 hops?

Is there a technical reason asset conversion in the builtin distributed exchange is limited to 6 hops? Or is it because of the six degrees of separation principle?
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4answers
438 views

Can Stellar-core be packaged in a container system such as Docker?

I want to incorporate Stellar-core and horizon into my private infrastructure using Docker. Can Stellar-core be packaged in a container system such as Docker?
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3answers
8k views

What is the incentive to run a Stellar node?

In bitcoin, miners are rewarded by minting new coins. What's the incentive to do so in Stellar?

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