connection node_2;
connection node_1;
SELECT variable_value FROM information_schema.session_variables
WHERE variable_name = 'wsrep_trx_fragment_size';
variable_value
0
SET SESSION wsrep_trx_fragment_size = 0;
SET SESSION wsrep_trx_fragment_size = 123;
SELECT variable_value FROM information_schema.global_variables
WHERE variable_name = 'wsrep_trx_fragment_size';
variable_value
0
SET GLOBAL wsrep_trx_fragment_size = 0;
SET GLOBAL wsrep_trx_fragment_size = 123;
SET GLOBAL wsrep_trx_fragment_size = default;