Questions tagged [scp]

For questions regarding the Stellar Consensus Protocol (SCP).

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(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 ...
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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 ...
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0answers
17 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.
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0answers
88 views

How should one decide how many and which nodes to select in the quorum set when configuring a Stellar Core Node

How should one decide how many and which nodes to select in the quorum set when configuring a Stellar Core Node (in archiver mode)? There is a list of validators in the link below, should all or some ...
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0answers
181 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. ...
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0answers
71 views

Can a transaction be successful in a 2-node private Stellar Network?

I have a 2-node private network running, when I try to submit a transaction using an XDR generated from the Stellar Lab, it first shows up as "PENDING", then one of the node stops working. Any idea, ...
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0answers
19 views

What is the mechanism of Stellar consensus protocol?

I don't understand what node is supposed to pick a nomination value and what value they take. I am reading the thesis which is written about Formal verification for SCP right now. Under my ...
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2answers
38 views

Peer getting rejected from the private network

Hi I created a private network of 3 nodes with the following configurations like this: # more than one node should validate. threashold = 2 [QUORUM_SET] THRESHOLD_PERCENT=34 VALIDATORS=["$node01","$...
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1answer
28 views

Problem in connecting new node to the network

I am trying to setup a network of 2 nodes(node01, node02) and then want another node to be connected to that network. Here is what my configuation is : For node 1: [QUORUM_SET] THRESHOLD_PERCENT=...
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0answers
21 views

Algorithm to find quorum

Given a set of nodes with information about how the note voted/accepted and their quorum slices and my quorum slices. How can I efficiently determine a quorum? Is there any special algorithm used? ...