Method handle_db_error

finalizer/src/db.rs:51–56

Log a database error and initiate graceful shutdown.

(&self, e: impl std::fmt::Display, op: &str)

    /// Log a database error, initiate graceful shutdown, and return the error so callers
    /// can propagate it and fence any consensus-critical side effects that must not run on
    /// state that failed to persist.
    fn handle_db_error(&self, e: impl std::fmt::Display, op: &str) -> anyhow::Error {
        error!(target: "critical", %e, op, "fatal database error, initiating shutdown");
        #[cfg(feature = "prom")]
        metrics::counter!("critical_errors_total", "reason" => "fatal_db_error", "severity" => "critical").increment(1);
        self.cancellation_token.cancel();
        anyhow::anyhow!("fatal database error in {op}: {e}")
    }