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################################################################################ # Validate that certification info garbage collection do not purge more data # than it should. # # Test: # 0. The test requires two servers: M1 and M2. # 1. Create a table on server1. # 2. Set a debug sync before broadcast message to group on # connection server_1. # Commit a transaction that will be block before broadcast. # 3. Wait until server_1 connection reaches the # group_replication_before_message_broadcast debug sync point. # 4. Execute a transaction on server2, that will reach first # certification, since server_1 is blocked before broadcast. # 5. Suspend pipeline on server2. # 6. Resume the transaction on server_1 # 7. Make sure the pipeline is suspended on server2. # 8. Wait until certification info garbage collector does # its work. # 9. Resume the pipeline on server2. # 10. Execute a new transaction in order to have a sync point # to make the test deterministic, # Validate that data and GTIDs are correct. # 11. Clean up. ################################################################################ --source include/have_debug_sync.inc --source include/big_test.inc --source ../inc/have_group_replication_plugin.inc --source ../inc/group_replication.inc --echo --echo ############################################################ --echo # 1. Create a table on server1. CREATE TABLE t1(a INT, b INT, PRIMARY KEY(a)); INSERT INTO t1 VALUE(1, 1); --source include/rpl_sync.inc --echo --echo ############################################################ --echo # 2. Set a debug sync before broadcast message to group on --echo # connection server_1. --echo # Commit a transaction that will be block before broadcast. --let $rpl_connection_name= server_1 --source include/rpl_connection.inc SET @@GLOBAL.DEBUG='+d,group_replication_before_message_broadcast'; BEGIN; UPDATE t1 SET b=10 WHERE a=1; --send COMMIT --echo --echo ############################################################ --echo # 3. Wait until server_1 connection reaches the --echo # group_replication_before_message_broadcast debug sync point. --let $rpl_connection_name= server1 --source include/rpl_connection.inc --let $wait_condition=SELECT COUNT(*)=1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE State = 'debug sync point: now' --source include/wait_condition.inc --echo --echo ############################################################ --echo # 4. Execute a transaction on server2, that will reach first --echo # certification, since server_1 is blocked before broadcast. --let $rpl_connection_name= server2 --source include/rpl_connection.inc UPDATE t1 SET b=20 WHERE a=1; --echo --echo ############################################################ --echo # 5. Suspend pipeline on server2. SET @@GLOBAL.DEBUG='+d,group_replication_before_apply_data_packet'; --echo --echo ############################################################ --echo # 6. Resume the transaction on server_1 --let $rpl_connection_name= server1 --source include/rpl_connection.inc SET DEBUG_SYNC='now SIGNAL waiting'; SET @@GLOBAL.DEBUG='-d,group_replication_before_message_broadcast'; --let $rpl_connection_name= server_1 --source include/rpl_connection.inc --error ER_TRANSACTION_ROLLBACK_DURING_COMMIT --reap --echo --echo ############################################################ --echo # 7. Make sure the pipeline is suspended on server2. --let $rpl_connection_name= server2 --source include/rpl_connection.inc --let $wait_condition=SELECT COUNT(*)=1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE State = 'debug sync point: now' --source include/wait_condition.inc --echo --echo ############################################################ --echo # 8. Wait until certification info garbage collector does --echo # its work. --let $gtid_assignment_block_size= `SELECT @@GLOBAL.group_replication_gtid_assignment_block_size;` --let $expected_gtid_set= $group_replication_group_name:1-4:1000002 if ($gtid_assignment_block_size == 1) { --let $expected_gtid_set= $group_replication_group_name:1-5 } --let $wait_condition= SELECT transactions_committed_all_members = "$expected_gtid_set" from performance_schema.replication_group_member_stats; --let $wait_timeout= 150 --source include/wait_condition.inc --echo --echo ############################################################ --echo # 9. Resume the pipeline on server2. SET DEBUG_SYNC='now SIGNAL continue_apply'; SET @@GLOBAL.DEBUG='-d,group_replication_before_apply_data_packet'; --echo --echo ############################################################ --echo # 10. Execute a new transaction in order to have a sync point --echo # to make the test deterministic, --echo # Validate that data and GTIDs are correct. --let $rpl_connection_name= server1 --source include/rpl_connection.inc INSERT INTO t1 VALUE(2, 2); --source include/rpl_sync.inc --let $expected_gtid_set= $group_replication_group_name:1-5:1000002 if ($gtid_assignment_block_size == 1) { --let $expected_gtid_set= $group_replication_group_name:1-6 } --let $assert_text= GTID_EXECUTED must contain 6 transactions --let $assert_cond= "[SELECT @@GLOBAL.GTID_EXECUTED]" = "$expected_gtid_set"; --source include/assert.inc --let $rpl_connection_name= server2 --source include/rpl_connection.inc --let $assert_text= GTID_EXECUTED must contain 6 transactions --let $assert_cond= "[SELECT @@GLOBAL.GTID_EXECUTED]" = "$expected_gtid_set"; --source include/assert.inc --let $diff_tables=server1:t1, server2:t1 --source include/diff_tables.inc --echo --echo ############################################################ --echo # 11. Clean up. DROP TABLE t1; --source ../inc/group_replication_end.inc