Add Running Genesis Mode HOWTO#2037
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Operational guide for running, configuring, and debugging Genesis-mode nodes. Covers host networking (IPv4/IPv6), small-testnet peer selection overrides (including MinBigLedgerPeersForTrustedState), sync stall diagnosis, and tracer configuration.
dnadales
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bladyjoker,
geo2a,
jasagredo and
nfrisby
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dnadales
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skip-tests
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lgtm, and indeed there is documentation on configuring and running in |
coot
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May 18, 2026
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| "UseTraceDispatcher": true, | ||
| "TurnOnLogging": true |
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Last two are generic tracing options, rather than something Genesis related, using UseTraceDispatcher is probably not even necessary, e.g. one can run the new tracing system in a mode which traces to stdout rather than through the TraceDispatcher.
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| ```json | ||
| "HostIPv4Addr": "0.0.0.0", | ||
| "HostIPv6Addr": "::" | ||
| ``` |
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I never used these config options (are you sure they exist?), there are CLI options for them in the node.
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Summary
Motivation
The existing Genesis documentation (
genesis_design.md) describes the design for implementers.There was no documentation for people actually running, configuring, or debugging Genesis-mode nodes.
This gap became apparent while investigating sync stalls on the dijkstra and leios testnets (3 relays each).
The root cause was that
MinBigLedgerPeersForTrustedState(default 5) prevents the HAA from being satisfied when the network has fewer than 5 big ledger peers — a fact not documented anywhere.Lowering
SyncTargetNumberOfActiveBigLedgerPeersalone is not sufficient; the HAA gate must also be lowered.The new doc distills the debugging knowledge acquired during that investigation into reusable guidance.