select SERVER_ID,ROLE,FORCE_SYNC,ELECTION_WEIGHT from information_schema.alisql_cluster_global;
SERVER_ID	ROLE	FORCE_SYNC	ELECTION_WEIGHT
1	Leader	No	5
2	Follower	No	5
3	Follower	No	5
call dbms_consensus.configure_follower("127.0.0.1:PAXOS_PORT_1", 9, 1);
call dbms_consensus.configure_follower("127.0.0.1:PAXOS_PORT_3", 1, 0);
select SERVER_ID,ROLE,FORCE_SYNC,ELECTION_WEIGHT from information_schema.alisql_cluster_global;
SERVER_ID	ROLE	FORCE_SYNC	ELECTION_WEIGHT
1	Leader	Yes	9
2	Follower	No	5
3	Follower	No	1
call dbms_consensus.change_leader("127.0.0.1:PAXOS_PORT_3");
select role from information_schema.alisql_cluster_local;
role
No Role
select role from information_schema.alisql_cluster_local;
role
Leader