47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
@startuml hb_last_indexer
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title Protection last-indexer → reconnectToSeeds → retryUntilSeedResponds
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participant "Node A" as NodeA
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participant "Indexer LAST\n(seul restant)" as IL
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participant "Seed Indexer\n(config)" as SEED
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participant "DHT" as DHT
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note over NodeA: Pool = 1 indexeur (LAST)\nIsSeed=false, score bas depuis longtemps
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== Tentative d'éviction par score ==
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NodeA -> NodeA: score < minScore\nAND TotalOnline ≥ 2×interval\nAND !IsSeed\nAND len(pool) > 1 ← FAUX : pool == 1
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note over NodeA: Garde active : len(pool) == 1\n→ éviction par score BLOQUÉE\nLAST reste dans le pool
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== Panne réseau (heartbeat fail) ==
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NodeA -> IL: stream.Encode(Heartbeat{...})
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IL -->x NodeA: timeout
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NodeA -> NodeA: HeartbeatFailure → evictPeer(LAST)\npoolSize = 0
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NodeA -> NodeA: reconnectToSeeds()\n→ parse IndexerAddresses (conf)\n→ SetAddr + SetScore(IsSeed=true) pour chaque seed
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alt seeds ajoutés (IndexerAddresses non vide)
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NodeA -> NodeA: NudgeIt() → tick immédiat
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NodeA -> SEED: Heartbeat{...} (via SendHeartbeat nudge)
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SEED --> NodeA: HeartbeatResponse{fillRate, ...}
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note over NodeA: Pool rétabli via seeds.\nDHT proactive discovery reprend.
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else IndexerAddresses vide
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NodeA -> NodeA: go retryUntilSeedResponds()
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note over NodeA: panic immédiat :\n"pool is empty and no seed indexers configured"\n→ arrêt du processus
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end
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== retryUntilSeedResponds (si seeds non répondants) ==
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loop backoff exponentiel (10s → 20s → ... → 5min)
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NodeA -> NodeA: time.Sleep(backoff)
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NodeA -> NodeA: len(Indexers.GetAddrs()) > 0?\n→ oui : retour (quelqu'un a refillé)
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NodeA -> NodeA: reconnectToSeeds()
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alt pool > 0 après reconnect
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NodeA -> NodeA: NudgeIt()\nDHT.Bootstrap(ctx, 15s)
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note over NodeA: Sortie de la boucle.\nHeartbeat normal reprend.
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end
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end
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@enduml
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