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mariadb/mysql-test/suite/multi_source/reset_slave.result
Brandon Nesterenko 5ab5ff08b0 MDEV-19801: Change defaults for CHANGE MASTER TO so that GTID-based replication is used by default if master supports it
This commit makes replicas crash-safe by default by changing the
Using_Gtid value to be Slave_Pos on a fresh slave start and after
RESET SLAVE is issued. If the primary server does not support GTIDs
(i.e., version < 10), the replica will fall back to Using_Gtid=No on
slave start and after RESET SLAVE.

The following additional informational messages/warnings are added:

 1. When Using_Gtid is automatically changed. That is, if RESET
SLAVE reverts Using_Gtid back to Slave_Pos, or Using_Gtid is
inferred to No from a CHANGE MASTER TO given with log coordinates
without MASTER_USE_GTID.
 2. If options are ignored in CHANGE MASTER TO. If CHANGE MASTER TO
is given with log coordinates, yet also specifies
MASTER_USE_GTID=Slave_Pos, a warning message is given that the log
coordinate options are ignored.

Additionally, an MTR macro has been added for RESET SLAVE,
reset_slave.inc, which provides modes/options for resetting a slave
in log coordinate or gtid modes. When in log coordinates mode, the
macro will execute CHANGE MASTER TO MASTER_USE_GTID=No after the
RESET SLAVE command. When in GTID mode, an extra parameter,
reset_slave_keep_gtid_state, can be set to reset or preserve the
value of gtid_slave_pos.

Reviewed By:
===========
Andrei Elkin <andrei.elkin@mariadb.com>
2022-07-26 13:31:27 -06:00

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connect slave,127.0.0.1,root,,,$SERVER_MYPORT_3;
change master 'master1' to
master_port=MYPORT_1,
master_host='127.0.0.1',
master_user='root';
start slave 'master1';
set default_master_connection = 'master1';
include/wait_for_slave_to_start.inc
connect master1,127.0.0.1,root,,,$SERVER_MYPORT_1;
drop table if exists t1;
create table t1 (i int) engine=MyISAM;
insert into t1 values (1),(2);
connection slave;
stop slave 'master1';
show slave 'master1' status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups
127.0.0.1 root MYPORT_1 60 master-bin.000001 <read_master_log_pos> mysqld-relay-bin-master1.000002 <relay_log_pos> master-bin.000001 No No 0 0 <read_master_log_pos> <relay_log_space> None 0 No NULL No 0 0 1 Slave_Pos 0-1-3 optimistic 0 NULL 2 1 0
mysqld-relay-bin-master1.000001
mysqld-relay-bin-master1.000002
mysqld-relay-bin-master1.index
reset slave 'master1';
show slave 'master1' status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master Master_SSL_Verify_Server_Cert Last_IO_Errno Last_IO_Error Last_SQL_Errno Last_SQL_Error Replicate_Ignore_Server_Ids Master_Server_Id Master_SSL_Crl Master_SSL_Crlpath Using_Gtid Gtid_IO_Pos Replicate_Do_Domain_Ids Replicate_Ignore_Domain_Ids Parallel_Mode SQL_Delay SQL_Remaining_Delay Slave_SQL_Running_State Slave_DDL_Groups Slave_Non_Transactional_Groups Slave_Transactional_Groups
127.0.0.1 root MYPORT_1 60 4 <relay_log_pos> No No 0 0 0 <relay_log_space> None 0 No NULL No 0 0 1 Slave_Pos optimistic 0 NULL 2 1 0
reset slave 'master1' all;
show slave 'master1' status;
ERROR HY000: There is no master connection 'master1'
drop table t1;
include/reset_master_slave.inc
disconnect slave;
connection master1;
drop table t1;
include/reset_master_slave.inc
disconnect master1;