connection node_2; connection node_1; connection node_1; SET GLOBAL wsrep_provider_options = 'pc.ignore_sb=true'; SET SESSION wsrep_trx_fragment_size = 1; CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB; connection node_2; Killing server ... connection node_1; ALTER TABLE t1 ADD COLUMN f2 INTEGER; connection node_2; # restart connection node_2a; SELECT COUNT(*) = 2 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='t1'; COUNT(*) = 2 1 SELECT VARIABLE_VALUE = 2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size'; VARIABLE_VALUE = 2 1 connection node_1; DROP TABLE t1;