connection node_2;
connection node_1;
CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
connection node_2;
SET GLOBAL wsrep_provider_options = "repl.causal_read_timeout=PT1S";
SET GLOBAL debug_dbug = "d,sync.wsrep_apply_cb";
SELECT MAX(id) FROM t1;
MAX(id)
1
connection node_1;
INSERT INTO t1 VALUES (2);
connection node_2;
SELECT MAX(id) FROM t1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET GLOBAL debug_dbug = "";
SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb";
FLUSH QUERY CACHE;
SET GLOBAL debug_dbug = "d,sync.wsrep_apply_cb";
SET DEBUG_SYNC = "RESET";
connection node_1;
INSERT INTO t1 VALUES (3);
connection node_2;
SELECT MAX(id) FROM t1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SET GLOBAL debug_dbug = "";
SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb";
connection node_1;
INSERT INTO t1 VALUES (4);
connection node_2;
SELECT MAX(id) FROM t1;
MAX(id)
4
FLUSH STATUS;
SELECT MAX(id) FROM t1;
MAX(id)
4
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 1
1
SET GLOBAL debug_dbug = "d,sync.wsrep_apply_cb";
connection node_1;
INSERT INTO t1 VALUES (5);
connection node_2;
SELECT MAX(id) FROM t1 ;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
SET GLOBAL debug_dbug = "";
SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb";
connection node_2;
MAX(id)
5
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 1
1