wangbo
335b21d1f8
将跨实例探测协调从持有会话级 advisory lock 改为带过期时间的数据库短租约，避免网络探测期间占用关键 PostgreSQL 连接。新增可配置的探测并发上限和真实 PostgreSQL 回归测试，确保租约生效期间连接池仍可全部获取。\n\n验证：go test ./... -count=1；go vet ./...；真实 PostgreSQL 17 集成测试；迁移安全检查。
12 lines
448 B
SQL
12 lines
448 B
SQL
CREATE TABLE IF NOT EXISTS gateway_route_probe_leases (
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pool_id text NOT NULL REFERENCES gateway_execution_pools(pool_id) ON DELETE CASCADE,
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route_profile_key text NOT NULL,
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lease_token uuid NOT NULL,
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expires_at timestamptz NOT NULL,
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updated_at timestamptz NOT NULL DEFAULT now(),
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PRIMARY KEY (pool_id, route_profile_key)
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);
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CREATE INDEX IF NOT EXISTS idx_gateway_route_probe_leases_expiry
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ON gateway_route_probe_leases(expires_at);
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