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Current File : //usr/opt/mysql57/mysql-test/suite/group_replication/t/gr_foreign_key_conflict.test |
################################################################################ # Test case to verify that concurrent transactions with intersecting # write set, on foreign key, do conflict. # # Scenario 8.3: on WL#6834 page # # T1: WS={t1.c1=1, t2.c1=1} # # T2: WS={t1.c1=1} # {t1.c1=2} # # Outcome: T1 must abort, T2 must commit. # # Full details on WL#6834 QA notes. # # Test: # 0. The test requires two servers: M1 and M2. # 1. With both members ONLINE. Create a table on M1. # 2. Set a debug sync before broadcast message to group on M1. Commit a # transaction that will be blocked before broadcast. # 3. Wait until M1 reaches the debug sync point. # 4. Execute a transaction on M2, that will reach first certification, since M1 # is blocked before broadcast. # 5. Signal the waiting thread on M1 to resume. # 6. It will end up in an error stating that it was aborted, since transactions # are conflicting and M2 was ordered first. # 7. Assert that number of certified transactions are the expected ones. # # Checking the positive case in which there is no conflict: # 8. Set a debug sync before broadcast message to group on M1. Commit a # transaction that will be block before broadcast. # 9. Wait until M1 reaches the debug sync point. # 10. Execute a transaction on M2, that will reach first certification, since M1 # is blocked before broadcast. # 11. Signal the waiting thread on M1 to resume. # 12. It will execute without error as the conflicting transactions have been # removed. # 13. Assert that number of certified transactions are the expected ones. # 14. Clean up. ################################################################################ --source include/have_debug_sync.inc --source ../inc/have_group_replication_plugin.inc --source ../inc/group_replication.inc --echo --echo ############################################################ --echo # Create a table on server1. --let $rpl_connection_name= server1 --source include/rpl_connection.inc CREATE TABLE t1 (c1 INT PRIMARY KEY); CREATE TABLE t2 (c2 INT PRIMARY KEY, FOREIGN KEY (c2) REFERENCES t1(c1)); INSERT INTO t1 VALUES(1); --source include/rpl_sync.inc --let $local_server_connection1=server_1 --let $local_server_connection2=server1 --let $remote_server_connection=server2 --let $local_transaction= INSERT INTO t2 VALUES (1) --let $remote_transaction=UPDATE t1 SET c1=2 WHERE c1=1 --let $conflict_test=1 --source ../inc/gr_parallel_local_and_remote_transactions.inc --echo --echo ############################################################ --echo # Checking the positive case in which there is no conflict. --echo ############################################################ --echo INSERT INTO t1 VALUES (5); --let $local_server_connection1=server_1 --let $local_server_connection2=server1 --let $remote_server_connection=server2 --let $local_transaction= INSERT INTO t2 VALUES (5) --let $remote_transaction=UPDATE t1 SET c1=6 WHERE c1=2 --let $conflict_test=0 --source ../inc/gr_parallel_local_and_remote_transactions.inc --echo --echo ############################################################ --echo # Check the data sanity --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 t2 WHERE t2.c2 = 5, 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 = 5, 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 = 6, count, 1]" = "1" --source include/assert.inc --let $assert_text= Table t2 will contain 1 rows after the above execution --let $assert_cond= "[SELECT COUNT(*) FROM t2]" = "1" --source include/assert.inc --let $assert_text= Table t1 will contain 2 rows after the above execution --let $assert_cond= "[SELECT COUNT(*) FROM t1]" = "2" --source include/assert.inc --echo --echo ############################################################ --echo # Clean up. DROP TABLE t2; DROP TABLE t1; --source ../inc/group_replication_end.inc