Rongsong Shen
a48ed5c018
Live 3-node cluster soak confirmed handle_repl_config_push's SHA-256
mismatch reject branch fires in production: 3/3 injected mismatched
pushes against a live standby produced a decoded
ReplConfigPushReply{accepted=false, term=<live raft term>, status=0},
seq-correlated, corroborated by the standby's local WARN log. Cluster
stayed healthy throughout (no crash/step-down/fence).
One rejection round: the real elected primary's own push has no
TOCTOU window to inject a mismatch without new relay code (confirmed
by reading config_commit_change/push_config_to_standbys), so the soak
plays the sender/primary role directly against a standby instead --
remediated from log-inference-only to actual decoded wire-reply
verification per reviewer's cheap-fix path.
No production/test code changed -- pure live observation.
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