The driver provides connection failover support to ensure continuous, uninterrupted access to data. Connection failover provides failover protection for new connections. In more traditional scenarios, the driver fails over new connections to an alternate, or backup, database server if the primary database server is unavailable. However, Google BigQuery currently supports only the notion of a single leader node. Therefore, to ensure a continuous connection, you only need to set the ConnectionRetryCount and ConnectionRetryDelay connection properties.