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Final push for WL#1098:

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"Add a column "Timestamp_of_last_master_event_executed" in SHOW SLAVE STATUS".
Finally this is adding
- Slave_IO_State (a copy of the State column of SHOW PROCESSLIST for the I/O thread,
so that the users, most of the time, has enough info with only SHOW SLAVE STATUS).
- Seconds_behind_master. When the slave connects to the master it does SELECT UNIX_TIMESTAMP()
on the master, computes the absolute difference between the master's and the slave's clock.
It records the timestamp of the last event executed by the SQL thread, and does a
small computation to find the number of seconds by which the slave is late.
This commit is contained in:
guilhem@gbichot2
2003-10-09 00:06:21 +02:00
parent 324ff6dedf
commit c0075fa64b
33 changed files with 190 additions and 87 deletions
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16
mysql-test/r/rpl_until.result
View File

@ -30,8 +30,8 @@ n
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show slave status;
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
127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 332 master-bin.000001 Yes No 0 0 244 649 Master master-bin.000001 244 No
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
Waiting for master to send event 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 332 master-bin.000001 Yes No 0 0 244 649 Master master-bin.000001 244 No #
start slave until master_log_file='master-no-such-bin.000001', master_log_pos=291;
select * from t1;
n
@ -40,22 +40,22 @@ n
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show slave status;
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
127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 332 master-bin.000001 Yes No 0 0 244 649 Master master-no-such-bin.000001 291 No
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
Waiting for master to send event 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 332 master-bin.000001 Yes No 0 0 244 649 Master master-no-such-bin.000001 291 No #
start slave until relay_log_file='slave-relay-bin.000002', relay_log_pos=537;
select * from t2;
n
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show slave status;
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
127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 537 master-bin.000001 Yes No 0 0 449 649 Relay slave-relay-bin.000002 537 No
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
Waiting for master to send event 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 537 master-bin.000001 Yes No 0 0 449 649 Relay slave-relay-bin.000002 537 No #
start slave;
stop slave;
start slave until master_log_file='master-bin.000001', master_log_pos=561;
show slave status;
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
127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 649 master-bin.000001 Yes No 0 0 561 693 Master master-bin.000001 561 No
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
Waiting for master to send event 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 561 slave-relay-bin.000002 649 master-bin.000001 Yes No 0 0 561 693 Master master-bin.000001 561 No #
start slave until master_log_file='master-bin', master_log_pos=561;
ERROR HY000: Wrong parameter or combination of parameters for START SLAVE UNTIL
start slave until master_log_file='master-bin.000001', master_log_pos=561, relay_log_pos=12;