# start a new learner
call dbms_consensus.add_learner("127.0.0.1:24400");
select count(*) from information_schema.alisql_cluster_global where role='LEARNER';
count(*)
1
create database aaa;
use aaa;
create table t (id int);
insert into t values(1);
show databases like '%aaa%';
Database (%aaa%)
aaa
# kill learner
drop database aaa;
# restart learner
show databases like '%aaa%';
Database (%aaa%)
call dbms_consensus.drop_learner("127.0.0.1:24400");