and out‐ side the transaction, the round‐ robin strategy is used to route to the replica RAN‐ DOM Within the transaction, read query are routed to the primary, and out‐ side the transaction, the espl itti ng.a lgor ithm .loa dbal ance .Rou ndRo binR eadQ uery Load Bala nceA lgor ithm RAN DOM the read database load balancer algorithm based on random or g.ap ache .sha rdin gsph ere. read a lgor ithm .loa dbal ance .Wei ghtR eadQ uery Load Bala nceA lgor ithm TRA NSA CTI ON_ RAN DOM Whether in a transaction or not, read requests are routed to multiple replicas using a random strat‐

espl itti ng.a lgor ithm .loa dbal ance .Rou ndRo binR eadQ uery Load Bala nceA lgor ithm RAN DOM the read database load balancer algorithm based on random or g.ap ache .sha rdin gsph ere. read a lgor ithm .loa dbal ance .Wei ghtR eadQ uery Load Bala nceA lgor ithm TRA NSA CTI ON_ RAN DOM Whether in a transaction or not, read requests are routed to multiple replicas using a random strat‐ adba lanc e.Tr ansa ctio nWei ghtR eadQ uery Load Bala nceA lgor ithm FI XED _RE PLI CA_ RAN DOM Open transaction, and the read request is routed to a fixed replica using a random strategy; if the