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https://github.com/MariaDB/server.git
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db21fddc37
Implement a new mode for parallel replication. In this mode, all transactions are optimistically attempted applied in parallel. In case of conflicts, the offending transaction is rolled back and retried later non-parallel. This is an early-release patch to facilitate testing, more changes to user interface / options will be expected. The new mode is not enabled by default.
84 lines
6.5 KiB
Plaintext
84 lines
6.5 KiB
Plaintext
include/master-slave.inc
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[connection master]
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show slave status;
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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
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show slave '' status;
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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
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show all slaves status;
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Connection_name Slave_SQL_State 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 Retried_transactions Max_relay_log_size Executed_log_entries Slave_received_heartbeats Slave_heartbeat_period Gtid_Slave_Pos
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#
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# Check error handling
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#
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show slave 'qqq' status;
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ERROR HY000: There is no master connection 'qqq'
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show slave 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc' status;
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ERROR HY000: There is no master connection 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'
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show slave 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc' status;
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ERROR HY000: Incorrect arguments to MASTER_CONNECTION_NAME
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change master 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc' to master_host='dummy';
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ERROR HY000: Incorrect arguments to MASTER_CONNECTION_NAME
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start slave 'qqq';
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ERROR HY000: There is no master connection 'qqq'
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stop slave 'qqq';
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ERROR HY000: There is no master connection 'qqq'
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flush slave 'qqq';
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ERROR HY000: There is no master connection 'qqq'
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reset slave 'qqq';
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ERROR HY000: There is no master connection 'qqq'
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select master_pos_wait('master-bin.999999',0,2,'qqq');
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master_pos_wait('master-bin.999999',0,2,'qqq')
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NULL
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Warnings:
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Warning 1617 There is no master connection 'qqq'
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select master_pos_wait('master-bin.999999',0,2,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc');
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master_pos_wait('master-bin.999999',0,2,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc')
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NULL
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Warnings:
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Warning 1210 Incorrect arguments to MASTER_CONNECTION_NAME
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#
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# checking usage of default_master_connection;
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#
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select @@default_master_connection;
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@@default_master_connection
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select @@global.default_master_connection;
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ERROR HY000: Variable 'default_master_connection' is a SESSION variable
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set @@global.default_master_connection='qqq';
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ERROR HY000: Variable 'default_master_connection' is a SESSION variable and can't be used with SET GLOBAL
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set @@default_master_connection='aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc';
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ERROR 42000: Variable 'default_master_connection' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc'
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select @@default_master_connection;
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@@default_master_connection
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set @@default_master_connection='qqq';
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select @@default_master_connection;
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@@default_master_connection
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qqq
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show variables like "default_master_connection";
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Variable_name Value
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default_master_connection qqq
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show slave status;
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ERROR HY000: There is no master connection 'qqq'
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select master_pos_wait('master-bin.999999',0,2);
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master_pos_wait('master-bin.999999',0,2)
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NULL
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Warnings:
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Warning 1617 There is no master connection 'qqq'
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set @@default_master_connection='';
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select master_pos_wait('master-bin.999999',0,2);
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master_pos_wait('master-bin.999999',0,2)
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-1
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set @@default_master_connection='';
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#
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# checking variables
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#
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show status like "Slave_running";
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Variable_name Value
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Slave_running ON
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set @@default_master_connection='qqq';
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show status like "Slave_running";
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Variable_name Value
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Slave_running
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set @@default_master_connection='';
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include/rpl_end.inc
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