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connection node_2;
connection node_1;
connection node_1;
connection node_2;
connection node_2;
CREATE TABLE t1(i INT) ENGINE=INNODB;
INSERT INTO t1 VALUES(1);
SELECT * FROM t1;
i
1
SET @@global.wsrep_cluster_address = '';
SET @@session.wsrep_dirty_reads=OFF;
SET SESSION wsrep_sync_wait=0;
SHOW STATUS LIKE 'wsrep_ready';
Variable_name Value
wsrep_ready OFF
SHOW STATUS LIKE 'wsrep_cluster_status';
Variable_name Value
wsrep_cluster_status Disconnected
SELECT * FROM t1;
ERROR 08S01: WSREP has not yet prepared node for application use
SELECT 1 FROM t1;
ERROR 08S01: WSREP has not yet prepared node for application use
SET @@session.wsrep_dirty_reads=ON;
SELECT * FROM t1;
i
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SELECT 1 FROM t1;
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SELECT i, variable_name, variable_value FROM t1, information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads" AND i = 1;
i variable_name variable_value
1 WSREP_DIRTY_READS ON
SET @@session.wsrep_dirty_reads=OFF;
SELECT i, variable_name, variable_value FROM t1, information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads" AND i = 1;
ERROR 08S01: WSREP has not yet prepared node for application use
SELECT 1;
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1
USE information_schema;
SELECT * FROM information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads";
VARIABLE_NAME VARIABLE_VALUE
WSREP_DIRTY_READS OFF
SELECT COUNT(*) >= 10 FROM performance_schema.events_statements_history;
COUNT(*) >= 10
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connection node_1;
USE test;
SELECT * FROM t1;
i
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DROP TABLE t1;
disconnect node_2;
disconnect node_1;
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