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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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4
mysql-test/r/rpl_log.result
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@ -95,7 +95,7 @@ slave-bin.000002 4 Query 1 4 use `test`; create table t1 (n int)
slave-bin.000002 62 Query 1 62 use `test`; insert into t1 values (1)
slave-bin.000002 122 Query 1 122 use `test`; drop table t1
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_PORT 1 master-bin.000002 276 slave-relay-bin.000003 214 master-bin.000002 Yes Yes 0 0 276 214 None 0 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_PORT 1 master-bin.000002 276 slave-relay-bin.000003 214 master-bin.000002 Yes Yes 0 0 276 214 None 0 No #
show binlog events in 'slave-bin.000005' from 4;
ERROR HY000: Error when executing command SHOW BINLOG EVENTS: Could not find target log