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Support for big ledger peer snapshot in the topology file #5787

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Support for big ledger peer snapshot in the topology file #5787

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Commits on Nov 13, 2024

  1. Support for big ledger peer snapshot 

    This change introduces support for big ledger peers in the node.
A new optional entry in network topology JSON parser is added that is intended
to point to a path containing a serialized snapshot of big ledger peers
taken from some slot a priori. When present, this file is decoded
at node startup, or when a SIGHUP is triggered, and made available
to the diffusion layer via reading from a TVar.
    @crocodile-dentist
    crocodile-dentist committed Nov 13, 2024
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  2. Added trace tags used in validation of big ledger peer snapshot

    @crocodile-dentist
    crocodile-dentist committed Nov 13, 2024
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  3. Added ConsensusMode option and Genesis targets for diffusion governors. 

    The ConsensusMode configuration option determines whether support for
Genesis syncing is enabled. If this flag is GenesisMode, alternate
targets for active peers (non- big ledger) and all big ledger targets
is used by the peer selection and churn governors in the diffusion
layer. These targets are in effect when ledger state is deemed
`TooOld` by consensus layer. The large active big ledger peer targets
crucially depend on chain skipping to maintain performance
requirements. Otherwise, in PraosMode, the legacy algorithm with
a single set of targets is employed.
    @crocodile-dentist
    crocodile-dentist committed Nov 13, 2024
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  4. Integrate o-network and o-consensus 

    Missing updating Node Configuration parser to read genesis targets and
ledger snapshot.
    @crocodile-dentist
    crocodile-dentist committed Nov 13, 2024
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