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
230 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
215 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
100 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
242 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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2answers
79 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
901 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
173 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 ...
2
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1answer
125 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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2answers
295 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 ...
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2answers
283 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 ...
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1answer
92 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 ...
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1answer
89 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
216 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
55 views

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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1answer
163 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
42 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
497 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
400 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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1answer
170 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
90 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 ...
2
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1answer
87 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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2answers
428 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 ...
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1answer
84 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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1answer
298 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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2answers
517 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
132 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 ...
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2answers
447 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 ...
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1answer
202 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 ...
3
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1answer
161 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
74 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?
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1answer
314 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 [...
2
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1answer
317 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: ...
3
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1answer
176 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
93 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 ...
4
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1answer
51 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
430 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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