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Ettore Di Giacinto
c7cb7e1ca5
Distinguishes a peer missing from the registry from a peer that will not answer: the second must never be readable as node absence, or a network hiccup between replicas evicts healthy workers. The distinction is a property of the error type rather than of the call sites. The unreachable error formats its cause into its message and keeps it out of its unwrap chain, so an ErrInstanceNotFound picked up on the dial path cannot reach a caller's absence check. One yamux session is cached per peer and re-dialled when OpenStream on it fails, which is how both a dead transport and a graceful remote go-away arrive. A reset of one stream never reaches the pool, so an abandoned request cannot cost every other worker its link. Assisted-by: Claude Opus 5 [claude-code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io>