Consider in the simplest case with two disjoint quorums A and B. If something comes to a consensus in A, does B get the update as well?

On a high level view, does each peer on the Stellar network maintain the same global ledger?

1 Answer 1


Yes, all nodes maintain the exact same ledger as a replicated state machine on top of the Stellar Consensus Protocol (SCP). It is a serious configuration error to have two disjoint quorums--such a configuration will cause serious problems for the network if the two quorums agree on different sets of transactions for a ledger. At that point people will have to decide that one side or the other was misconfigured (probably the more recently added nodes should have configured their quorum slices to depend on existing nodes).

  • So I'm assuming when that happens the behavior is arbitrary? And that there's no physical mechanism such as a sync-component that at least tries to sync the ledger?
    – B.Li
    Oct 3, 2018 at 18:10
  • No you need a human decision about who is right and who misconfigured their stellar-core. Oct 4, 2018 at 7:38

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