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CREATE TABLE t1(i INT) ENGINE=INNODB;
INSERT INTO t1 VALUES(1);
SELECT * FROM t1;
i
1
create user user1;
grant all privileges on *.* to user1;
create user user2;
grant all privileges on *.* to user2;
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 non-Primary
SELECT * FROM t1;
ERROR 08S01: WSREP has not yet prepared node for application use
SELECT @@wsrep_dirty_reads;
@@wsrep_dirty_reads
0
SELECT 2;
2
2
SELECT 2+2 FROM DUAL;
2+2
4
SET @@session.wsrep_dirty_reads=ON;
SELECT * FROM t1;
i
1
connect con1, localhost, user1,,test,$NODE_MYPORT_2,$NODE_MYSOCK_2;
SET SESSION wsrep_sync_wait=0;
set session wsrep_dirty_reads=1;
prepare stmt_show from 'select 1';
prepare stmt_select from 'select * from t1';
prepare stmt_insert from 'insert into t1 values(1)';
set session wsrep_dirty_reads=0;
execute stmt_show;
ERROR 08S01: WSREP has not yet prepared node for application use
execute stmt_select;
ERROR 08S01: WSREP has not yet prepared node for application use
execute stmt_insert;
ERROR 08S01: WSREP has not yet prepared node for application use
SET wsrep_dirty_reads=ON;
select @@session.wsrep_dirty_reads;
@@session.wsrep_dirty_reads
1
execute stmt_show;
1
1
execute stmt_select;
i
1
execute stmt_insert;
ERROR 08S01: WSREP has not yet prepared node for application use
SET @@global.wsrep_dirty_reads=ON;
connect con2, localhost, user2,,test,$NODE_MYPORT_2,$NODE_MYSOCK_2;
select @@session.wsrep_dirty_reads;
@@session.wsrep_dirty_reads
1
prepare stmt_show from 'select 1';
prepare stmt_select from 'select * from t1';
prepare stmt_insert from 'insert into t1 values(1)';
execute stmt_show;
1
1
execute stmt_select;
i
1
execute stmt_insert;
ERROR 08S01: WSREP has not yet prepared node for application use
SET SESSION wsrep_sync_wait=1;
execute stmt_show;
1
1
execute stmt_select;
i
1
execute stmt_insert;
ERROR 08S01: WSREP has not yet prepared node for application use
SET SESSION wsrep_sync_wait=7;
execute stmt_show;
1
1
execute stmt_select;
i
1
execute stmt_insert;
ERROR 08S01: WSREP has not yet prepared node for application use
connection node_2;
SET @@global.wsrep_dirty_reads=OFF;
connection node_1;
SELECT * FROM t1;
i
1
DROP TABLE t1;
drop user user1;
drop user user2;
disconnect node_2;
disconnect node_1;
# End of test
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