connection node_2;
connection node_1;
connection node_1;
connection node_2;
connection node_1;
SET GLOBAL wsrep_provider_options = 'pc.weight=2';
connection node_2;
SET GLOBAL wsrep_provider_options = 'gmcast.isolate = 1';
SET SESSION wsrep_sync_wait = 0;
connection node_1;
SET GLOBAL wsrep_provider_options = 'pc.weight = 1';