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25b5c63905
This commit adds 3 new status variables to 'show all slaves status':
- Master_last_event_time ; timestamp of the last event read from the
master by the IO thread.
- Slave_last_event_time ; Master timestamp of the last event committed
on the slave.
- Master_Slave_time_diff: The difference of the above two timestamps.
All the above variables are NULL until the slave has started and the
slave has read one query event from the master that changes data.
- Added information_schema.slave_status, which allows us to remove:
- show_master_info(), show_master_info_get_fields(),
send_show_master_info_data(), show_all_master_info()
- class Sql_cmd_show_slave_status.
- Protocol::store(I_List<i_string_pair>* str_list) as it is not
used anymore.
- Changed old SHOW SLAVE STATUS and SHOW ALL SLAVES STATUS to
use the SELECT code path, as all other SHOW ... STATUS commands.
Other things:
- Xid_log_time is set to time of commit to allow slave that reads the
binary log to calculate Master_last_event_time and
Slave_last_event_time.
This is needed as there is not 'exec_time' for row events.
- Fixed that Load_log_event calculates exec_time identically to
Query_event.
- Updated RESET SLAVE to reset Master/Slave_last_event_time
- Updated SQL thread's update on first transaction read-in to
only update Slave_last_event_time on group events.
- Fixed possible (unlikely) bugs in sql_show.cc ...old_format() functions
if allocation of 'field' would fail.
Reviewed By:
Brandon Nesterenko <brandon.nesterenko@mariadb.com>
Kristian Nielsen <knielsen@knielsen-hq.org>
166 lines
4.4 KiB
Plaintext
166 lines
4.4 KiB
Plaintext
connect slave,127.0.0.1,root,,,$SERVER_MYPORT_3;
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connect master1,127.0.0.1,root,,,$SERVER_MYPORT_1;
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connect master2,127.0.0.1,root,,,$SERVER_MYPORT_2;
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connection slave;
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CHANGE MASTER 'slave1' TO MASTER_PORT=MYPORT_1, MASTER_HOST='127.0.0.1', MASTER_USER='root', master_ssl_verify_server_cert=0;
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CHANGE MASTER 'slave2' TO MASTER_PORT=MYPORT_2, MASTER_HOST='127.0.0.1', MASTER_USER='root', master_ssl_verify_server_cert=0;
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START REPLICA 'slave1';
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SET default_master_connection = 'slave1';
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include/wait_for_slave_to_start.inc
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SET default_master_connection = 'slave2';
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"Command: START ALL SLAVES --> START ALL REPLICAS"
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START ALL REPLICAS;
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Warnings:
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Note 1937 SLAVE 'slave2' started
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include/wait_for_slave_to_start.inc
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SET default_master_connection = '';
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connection master1;
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connection slave;
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connection master2;
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connection slave;
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"Command: SHOW ALL STAVES STATUS --> SHOW ALL REPLICAS STATUS"
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SHOW ALL REPLICAS STATUS;
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Connection_name slave1
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Slave_SQL_State Slave has read all relay log; waiting for more updates
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Slave_IO_State Waiting for master to send event
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Master_Host 127.0.0.1
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Master_User root
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Master_Port MYPORT_1
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Connect_Retry 60
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Master_Log_File master-bin.000001
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Read_Master_Log_Pos <read_master_log_pos>
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Relay_Log_File mysqld-relay-bin-slave1.000002
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Relay_Log_Pos <relay_log_pos>
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Relay_Master_Log_File master-bin.000001
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Slave_IO_Running Yes
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Slave_SQL_Running Yes
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Replicate_Do_DB
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Replicate_Ignore_DB
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Replicate_Do_Table
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Replicate_Ignore_Table
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Replicate_Wild_Do_Table
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Replicate_Wild_Ignore_Table
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Last_Errno 0
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Last_Error
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Skip_Counter 0
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Exec_Master_Log_Pos <read_master_log_pos>
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Relay_Log_Space <relay_log_space1>
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Until_Condition None
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Until_Log_File
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Until_Log_Pos 0
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Master_SSL_Allowed Yes
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Master_SSL_CA_File
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Master_SSL_CA_Path
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Master_SSL_Cert
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Master_SSL_Cipher
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Master_SSL_Key
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Seconds_Behind_Master 0
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Master_SSL_Verify_Server_Cert No
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Last_IO_Errno 0
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Last_IO_Error
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Last_SQL_Errno 0
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Last_SQL_Error
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Replicate_Ignore_Server_Ids
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Master_Server_Id 1
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Master_SSL_Crl
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Master_SSL_Crlpath
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Using_Gtid Slave_Pos
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Gtid_IO_Pos
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Replicate_Do_Domain_Ids
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Replicate_Ignore_Domain_Ids
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Parallel_Mode optimistic
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SQL_Delay 0
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SQL_Remaining_Delay NULL
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Slave_SQL_Running_State Slave has read all relay log; waiting for more updates
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Slave_DDL_Groups 0
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Slave_Non_Transactional_Groups 0
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Slave_Transactional_Groups 0
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Replicate_Rewrite_DB
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Retried_transactions 0
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Max_relay_log_size 1073741824
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Executed_log_entries 7
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Slave_received_heartbeats 0
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Slave_heartbeat_period 60.000
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Gtid_Slave_Pos
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Master_last_event_time NULL
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Slave_last_event_time NULL
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Master_Slave_time_diff NULL
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Connection_name slave2
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Slave_SQL_State Slave has read all relay log; waiting for more updates
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Slave_IO_State Waiting for master to send event
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Master_Host 127.0.0.1
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Master_User root
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Master_Port MYPORT_2
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Connect_Retry 60
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Master_Log_File master-bin.000001
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Read_Master_Log_Pos <read_master_log_pos>
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Relay_Log_File mysqld-relay-bin-slave2.000002
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Relay_Log_Pos <relay_log_pos>
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Relay_Master_Log_File master-bin.000001
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Slave_IO_Running Yes
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Slave_SQL_Running Yes
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Replicate_Do_DB
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Replicate_Ignore_DB
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Replicate_Do_Table
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Replicate_Ignore_Table
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Replicate_Wild_Do_Table
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Replicate_Wild_Ignore_Table
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Last_Errno 0
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Last_Error
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Skip_Counter 0
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Exec_Master_Log_Pos <read_master_log_pos>
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Relay_Log_Space <relay_log_space1>
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Until_Condition None
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Until_Log_File
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Until_Log_Pos 0
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Master_SSL_Allowed Yes
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Master_SSL_CA_File
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Master_SSL_CA_Path
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Master_SSL_Cert
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Master_SSL_Cipher
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Master_SSL_Key
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Seconds_Behind_Master 0
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Master_SSL_Verify_Server_Cert No
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Last_IO_Errno 0
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Last_IO_Error
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Last_SQL_Errno 0
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Last_SQL_Error
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Replicate_Ignore_Server_Ids
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Master_Server_Id 2
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Master_SSL_Crl
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Master_SSL_Crlpath
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Using_Gtid Slave_Pos
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Gtid_IO_Pos
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Replicate_Do_Domain_Ids
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Replicate_Ignore_Domain_Ids
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Parallel_Mode optimistic
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SQL_Delay 0
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SQL_Remaining_Delay NULL
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Slave_SQL_Running_State Slave has read all relay log; waiting for more updates
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Slave_DDL_Groups 0
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Slave_Non_Transactional_Groups 0
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Slave_Transactional_Groups 0
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Replicate_Rewrite_DB
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Retried_transactions 0
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Max_relay_log_size 1073741824
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Executed_log_entries 7
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Slave_received_heartbeats 0
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Slave_heartbeat_period 60.000
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Gtid_Slave_Pos
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Master_last_event_time NULL
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Slave_last_event_time NULL
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Master_Slave_time_diff NULL
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"Command: STOP ALL SLAVES --> STOP ALL REPLICAS"
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STOP ALL REPLICAS;
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Warnings:
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Note 1938 SLAVE 'slave2' stopped
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Note 1938 SLAVE 'slave1' stopped
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include/reset_master_slave.inc
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disconnect slave;
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connection master1;
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include/reset_master_slave.inc
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disconnect master1;
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connection master2;
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include/reset_master_slave.inc
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disconnect master2;
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