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################################################################################ # Support to SKIP group gtid # # Case III - Support to skip gtid generated on multiple servers. # # Test: # 0) The test requires two servers: M1 and M2. # 1) With both members ONLINE in a group. GTID_EXECUTED must contain two # transactions from view change events. Next sequence number is 3 on both the # servers. # 2) On M1 executes a transaction with GTID_NEXT=UUID_GROUP:3 # 3) On M2 execute a transaction, it will have: # M1: UUID_GROUP:4 # M2: UUID_GROUP:4 # i.e. After this fix both servers should generate the same gtid (UUID_GROUP:4) # 4) Check gtid_executed on M2. It must be UUID_GROUP:1-4. # 5) Verify sequence of events in binlog of both M1 and M2. # 6) Check gtid_executed on M1. It must be UUID_GROUP:1-4. # 7) Clean up. ################################################################################ --let $group_replication_group_name= 32e15fec-01d2-11e6-a992-02420ef39c5b --source ../inc/have_group_replication_plugin.inc --source ../inc/group_replication.inc # The sequence of events that make up a View Change --let $vcle_seq= Gtid # Query/BEGIN # View_change # Query/COMMIT --let $rpl_connection_name= server1 --source include/rpl_connection.inc SET SESSION sql_log_bin= 0; --source include/gtid_utils.inc SET SESSION sql_log_bin= 1; --let $rpl_connection_name= server2 --source include/rpl_connection.inc SET SESSION sql_log_bin= 0; --source include/gtid_utils.inc SET SESSION sql_log_bin= 1; --let $rpl_connection_name= server1 --source include/rpl_connection.inc --let $assert_text= GTID_EXECUTED must contain two transactions, two from view change events. --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED,"$group_replication_group_name:1-2") --source include/assert.inc --echo # At this moment both the servers have next sequence number set to 2. # Insert a transaction to with GTID set to UUID_GROUP:3. --eval SET GTID_NEXT= "$group_replication_group_name:3" CREATE TABLE t1 (i INT PRIMARY KEY); SET GTID_NEXT='AUTOMATIC'; --source include/rpl_sync.inc --let $assert_text= GTID_EXECUTED must contain three transactions, two from view change and other being the create. --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED,"$group_replication_group_name:1-3") --source include/assert.inc --let $rpl_connection_name= server2 --source include/rpl_connection.inc # Insert a transaction here to generate the next gtid automatically. This # should skip the last gtid generated and use the next available value. i.e. # UUID_GROUP:4. INSERT INTO t1 VALUES(1); --source include/rpl_sync.inc # Checking the GTID_EXECUTED on the server2. This should be UUID_GROUP:1-4 --let $assert_text= GTID_EXECUTED must contain four transactions, two from view change, 1 create and 1 insert. --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED,"$group_replication_group_name:1-4") --source include/assert.inc # View change (s1) # View change (s2) # Create table # Insert table --let $event_sequence= $vcle_seq # $vcle_seq # Gtid # !Q(CREATE.*) # Gtid # !Begin # Table_map # Write_rows # !Commit --source include/assert_binlog_events.inc --let $rpl_connection_name= server1 --source include/rpl_connection.inc # View change (s1) # View change (s2) # Create table # Insert table --let $event_sequence= $vcle_seq # $vcle_seq # Gtid # !Q(CREATE.*) # Gtid # !Begin # Table_map # Write_rows # !Commit --source include/assert_binlog_events.inc --let $rpl_connection_name= server1 --source include/rpl_connection.inc # Checking the GTID_EXECUTED on the server1. This should be UUID_GROUP:1-4 --let $assert_text= GTID_EXECUTED must contain four transactions, two from view change, 1 create and 1 insert. --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED,"$group_replication_group_name:1-4") --source include/assert.inc # Cleanup --let $rpl_connection_name= server1 --source include/rpl_connection.inc SET SESSION sql_log_bin= 0; --source include/gtid_utils_end.inc SET SESSION sql_log_bin= 1; --let $rpl_connection_name= server2 --source include/rpl_connection.inc SET SESSION sql_log_bin= 0; --source include/gtid_utils_end.inc SET SESSION sql_log_bin= 1; DROP TABLE t1; --source ../inc/group_replication_end.inc