################################################################################ # Test case to verify that concurrent transactions with intersecting # write set, the same not null unique key, do conflict. # # T1: WS={t1.a= 1} # # T2: WS={t1.a= 1} # # Outcome: T1 must abort, T2 must commit. # # Test: # 0. The test requires two servers: M1 and M2. # 1. With both members ONLINE. Create a table on M1. # 2. Checking the negative case in which there is a conflict. # 3. Checking the positive case in which there is no conflict: # 4. Assert table consistency. # 5. Primary key equivalent i.e. Unique key must be NOT NULL # 6. Clean up. ################################################################################ --source include/have_debug_sync.inc --source include/have_group_replication_plugin.inc --source include/group_replication.inc --echo --echo # 1. With both members ONLINE. Create a table on M1. --echo --let $rpl_connection_name= server1 --source include/rpl_connection.inc CREATE TABLE t1 (c1 INT UNIQUE KEY NOT NULL); --source include/rpl_sync.inc --echo --echo # 2. Checking the negative case in which there is a conflict. --echo --let $local_server_connection1=server1 --let $local_server_connection2=server_1 --let $remote_server_connection=server2 --let $local_transaction= INSERT INTO t1 VALUES (1); --let $remote_transaction= INSERT INTO t1 VALUES (1); --let $conflict_test=1 --source include/gr_parallel_local_and_remote_transactions.inc --echo --echo # 3. Checking the positive case in which there is no conflict. --echo --let $local_server_connection1=server1 --let $local_server_connection2=server_1 --let $remote_server_connection=server2 --let $local_transaction= INSERT INTO t1 VALUES (2); --let $remote_transaction= INSERT INTO t1 VALUES (3); --let $conflict_test=0 --source include/gr_parallel_local_and_remote_transactions.inc --echo --echo # 4. Assert table consistency. --echo --let $rpl_connection_name= server1 --source include/rpl_connection.inc --let $assert_text= Table t1 will contain row after the above execution --let $assert_cond= "[SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 1, count, 1]" = "1" --source include/assert.inc --let $assert_text= Table t1 will contain row after the above execution --let $assert_cond= "[SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 2, count, 1]" = "1" --source include/assert.inc --let $assert_text= Table t1 will contain row after the above execution --let $assert_cond= "[SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 3, count, 1]" = "1" --source include/assert.inc --let $assert_text= Table t1 will contain 3 rows after the above execution --let $assert_cond= "[SELECT COUNT(*) FROM t1]" = "3" --source include/assert.inc --echo --echo # 5. Primary key equivalent i.e. Unique key must be NOT NULL --echo set session sql_log_bin=0; call mtr.add_suppression("Table t1_null does not have any PRIMARY KEY. This is not compatible with Group Replication."); set session sql_log_bin=1; CREATE TABLE t1_null (c1 INT UNIQUE KEY); --error ER_BEFORE_DML_VALIDATION_ERROR INSERT INTO t1_null values (5); --echo --echo # 6. Clean up. --echo DROP TABLE t1; DROP TABLE t1_null; --source include/group_replication_end.inc