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MDEV-20601: Make REPLICA a synonym for SLAVE in SQL statements

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Fix:
===
Add "REPLICA" as an alias for "SLAVE". All commands which use "SLAVE" keyword
can be used with new alias "REPLICA".

List of commands:

On Master:
=========
SHOW REPLICA HOSTS <--> SHOW SLAVE HOSTS
Privilege "SLAVE"  <--> "REPLICA"

On Slave:
=========
START SLAVE       <--> START REPLICA
START ALL SLAVES  <--> START ALL REPLICAS
START SLAVE UNTIL <--> START REPLICA UNTIL
STOP SLAVE        <--> STOP REPLICA
STOP ALL SLAVES   <--> STOP ALL REPLICAS
RESET SLAVE       <--> RESET REPLICA
RESET SLAVE ALL   <--> RESET REPLICA ALL
SLAVE_POS         <--> REPLICA_POS
This commit is contained in:
Sujatha
2020-02-04 18:16:21 +05:30
parent 287c1db786
commit 42e825dd0a
5 changed files with 392 additions and 0 deletions
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157
mysql-test/suite/multi_source/multi_source_slave_alias_replica.result Normal file
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connect slave,127.0.0.1,root,,,$SERVER_MYPORT_3;
connect master1,127.0.0.1,root,,,$SERVER_MYPORT_1;
connect master2,127.0.0.1,root,,,$SERVER_MYPORT_2;
connection slave;
CHANGE MASTER 'slave1' TO MASTER_PORT=MYPORT_1, MASTER_HOST='127.0.0.1', MASTER_USER='root';
CHANGE MASTER 'slave2' TO MASTER_PORT=MYPORT_2, MASTER_HOST='127.0.0.1', MASTER_USER='root';
START REPLICA 'slave1';
SET default_master_connection = 'slave1';
include/wait_for_slave_to_start.inc
SET default_master_connection = 'slave2';
"Command: START ALL SLAVES --> START ALL REPLICAS"
START ALL REPLICAS;
Warnings:
Note 1937 SLAVE 'slave2' started
include/wait_for_slave_to_start.inc
SET default_master_connection = '';
connection master1;
connection slave;
connection master2;
connection slave;
"Command: SHOW ALL STAVES STATUS --> SHOW ALL REPLICAS STATUS"
SHOW ALL REPLICAS STATUS;
Connection_name slave1
Slave_SQL_State Slave has read all relay log; waiting for the slave I/O thread to update it
Slave_IO_State Waiting for master to send event
Master_Host 127.0.0.1
Master_User root
Master_Port MYPORT_1
Connect_Retry 60
Master_Log_File master-bin.000001
Read_Master_Log_Pos <read_master_log_pos>
Relay_Log_File mysqld-relay-bin-slave1.000002
Relay_Log_Pos <relay_log_pos>
Relay_Master_Log_File master-bin.000001
Slave_IO_Running Yes
Slave_SQL_Running Yes
Replicate_Do_DB
Replicate_Ignore_DB
Replicate_Do_Table
Replicate_Ignore_Table
Replicate_Wild_Do_Table
Replicate_Wild_Ignore_Table
Last_Errno 0
Last_Error
Skip_Counter 0
Exec_Master_Log_Pos <read_master_log_pos>
Relay_Log_Space <relay_log_space1>
Until_Condition None
Until_Log_File
Until_Log_Pos 0
Master_SSL_Allowed No
Master_SSL_CA_File
Master_SSL_CA_Path
Master_SSL_Cert
Master_SSL_Cipher
Master_SSL_Key
Seconds_Behind_Master 0
Master_SSL_Verify_Server_Cert No
Last_IO_Errno 0
Last_IO_Error
Last_SQL_Errno 0
Last_SQL_Error
Replicate_Ignore_Server_Ids
Master_Server_Id 1
Master_SSL_Crl
Master_SSL_Crlpath
Using_Gtid No
Gtid_IO_Pos
Replicate_Do_Domain_Ids
Replicate_Ignore_Domain_Ids
Parallel_Mode optimistic
SQL_Delay 0
SQL_Remaining_Delay NULL
Slave_SQL_Running_State Slave has read all relay log; waiting for the slave I/O thread to update it
Slave_DDL_Groups 0
Slave_Non_Transactional_Groups 0
Slave_Transactional_Groups 0
Retried_transactions 0
Max_relay_log_size 1073741824
Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
Connection_name slave2
Slave_SQL_State Slave has read all relay log; waiting for the slave I/O thread to update it
Slave_IO_State Waiting for master to send event
Master_Host 127.0.0.1
Master_User root
Master_Port MYPORT_2
Connect_Retry 60
Master_Log_File master-bin.000001
Read_Master_Log_Pos <read_master_log_pos>
Relay_Log_File mysqld-relay-bin-slave2.000002
Relay_Log_Pos <relay_log_pos>
Relay_Master_Log_File master-bin.000001
Slave_IO_Running Yes
Slave_SQL_Running Yes
Replicate_Do_DB
Replicate_Ignore_DB
Replicate_Do_Table
Replicate_Ignore_Table
Replicate_Wild_Do_Table
Replicate_Wild_Ignore_Table
Last_Errno 0
Last_Error
Skip_Counter 0
Exec_Master_Log_Pos <read_master_log_pos>
Relay_Log_Space <relay_log_space1>
Until_Condition None
Until_Log_File
Until_Log_Pos 0
Master_SSL_Allowed No
Master_SSL_CA_File
Master_SSL_CA_Path
Master_SSL_Cert
Master_SSL_Cipher
Master_SSL_Key
Seconds_Behind_Master 0
Master_SSL_Verify_Server_Cert No
Last_IO_Errno 0
Last_IO_Error
Last_SQL_Errno 0
Last_SQL_Error
Replicate_Ignore_Server_Ids
Master_Server_Id 2
Master_SSL_Crl
Master_SSL_Crlpath
Using_Gtid No
Gtid_IO_Pos
Replicate_Do_Domain_Ids
Replicate_Ignore_Domain_Ids
Parallel_Mode optimistic
SQL_Delay 0
SQL_Remaining_Delay NULL
Slave_SQL_Running_State Slave has read all relay log; waiting for the slave I/O thread to update it
Slave_DDL_Groups 0
Slave_Non_Transactional_Groups 0
Slave_Transactional_Groups 0
Retried_transactions 0
Max_relay_log_size 1073741824
Executed_log_entries 7
Slave_received_heartbeats 0
Slave_heartbeat_period 60.000
Gtid_Slave_Pos
"Command: STOP ALL SLAVES --> STOP ALL REPLICAS"
STOP ALL REPLICAS;
Warnings:
Note 1938 SLAVE 'slave2' stopped
Note 1938 SLAVE 'slave1' stopped
include/reset_master_slave.inc
disconnect slave;
connection master1;
include/reset_master_slave.inc
disconnect master1;
connection master2;
include/reset_master_slave.inc
disconnect master2;

80
mysql-test/suite/multi_source/multi_source_slave_alias_replica.test Normal file
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# ==== Purpose ====
#
# Test verifies that SQL statements which use keyword 'REPLICA' a synonym for
# 'SLAVE' work as expected.
#
# ==== Implementation ====
#
# List of commands being verified are
#
# START ALL REPLICAS
# STOP ALL REPLICAS
# SHOW ALL REPLICAS STATUS
#
# ==== References ====
#
# MDEV-20601: Make REPLICA a synonym for SLAVE in SQL statements
#
--source include/not_embedded.inc
--source include/binlog_start_pos.inc
--let $rpl_server_count= 0
--connect (slave,127.0.0.1,root,,,$SERVER_MYPORT_3)
--connect (master1,127.0.0.1,root,,,$SERVER_MYPORT_1)
--connect (master2,127.0.0.1,root,,,$SERVER_MYPORT_2)
--connection slave
--replace_result $SERVER_MYPORT_1 MYPORT_1
eval CHANGE MASTER 'slave1' TO MASTER_PORT=$SERVER_MYPORT_1, MASTER_HOST='127.0.0.1', MASTER_USER='root';
--replace_result $SERVER_MYPORT_2 MYPORT_2
eval CHANGE MASTER 'slave2' TO MASTER_PORT=$SERVER_MYPORT_2, MASTER_HOST='127.0.0.1', MASTER_USER='root';
START REPLICA 'slave1';
SET default_master_connection = 'slave1';
--source include/wait_for_slave_to_start.inc
SET default_master_connection = 'slave2';
--echo "Command: START ALL SLAVES --> START ALL REPLICAS"
START ALL REPLICAS;
--source include/wait_for_slave_to_start.inc
SET default_master_connection = '';
# Ensure that all data is in the relay log
--connection master1
--save_master_pos
--connection slave
--sync_with_master 0,'slave1'
--connection master2
--save_master_pos
--connection slave
--sync_with_master 0,'slave2'
--echo "Command: SHOW ALL STAVES STATUS --> SHOW ALL REPLICAS STATUS"
let $show_statement = SHOW ALL REPLICAS STATUS;
let $field = Executed_log_entries;
let $condition = = 7;
let $wait_for_all = 1;
--source include/wait_show_condition.inc
let read_master_log_pos=`select $binlog_start_pos + 73`;
let relay_log_pos=`select 2*$binlog_start_pos + 117`;
let relay_log_space1=`select 3*$binlog_start_pos + 178`;
let relay_log_space2=`select 3*$binlog_start_pos + 178`;
--replace_result $SERVER_MYPORT_1 MYPORT_1 $SERVER_MYPORT_2 MYPORT_2 $read_master_log_pos <read_master_log_pos> $relay_log_pos <relay_log_pos> $relay_log_space1 <relay_log_space1> $relay_log_space2 <relay_log_space2>
--query_vertical SHOW ALL REPLICAS STATUS
--echo "Command: STOP ALL SLAVES --> STOP ALL REPLICAS"
STOP ALL REPLICAS;
#
# clean up
#
--source include/reset_master_slave.inc
--disconnect slave
--connection master1
--source include/reset_master_slave.inc
--disconnect master1
--connection master2
--source include/reset_master_slave.inc
--disconnect master2