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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.


mysql-test/r/rpl000015.result:
  result update
mysql-test/r/rpl_empty_master_crash.result:
  result update
mysql-test/r/rpl_error_ignored_table.result:
  result update
mysql-test/r/rpl_flush_log_loop.result:
  result update
mysql-test/r/rpl_loaddata.result:
  result update
mysql-test/r/rpl_log.result:
  result update
mysql-test/r/rpl_log_pos.result:
  result update
mysql-test/r/rpl_max_relay_size.result:
  result update
mysql-test/r/rpl_redirect.result:
  result update
mysql-test/r/rpl_replicate_do.result:
  result update
mysql-test/r/rpl_reset_slave.result:
  result update
mysql-test/r/rpl_rotate_logs.result:
  result update
mysql-test/r/rpl_trunc_binlog.result:
  result update
mysql-test/r/rpl_until.result:
  result update
mysql-test/t/rpl000015.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_empty_master_crash.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_error_ignored_table.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_flush_log_loop.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_loaddata.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_log.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_log_pos.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_max_relay_size.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_openssl.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_redirect.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_replicate_do.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_reset_slave.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_rotate_logs.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_trunc_binlog.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
mysql-test/t/rpl_until.test:
  update to be independant of the new column Seconds_behind_master in SHOW SLAVE STATUS
sql/log_event.cc:
  when the SQL thread executes an event, we record its timestamp
sql/slave.cc:
  in check_master_version() we know read the master's clock, to know the clock difference
  with the slave.
  In show_master_info() we send the state of the I/O thread, and compute the number of
  seconds by which the slave is late.
sql/slave.h:
  timestamp of the last master's event executed by the SQL thread,
  and difference between the clocks of the master and slave.
sql/sql_repl.cc:
  clear the Seconds_behind_master column of SHOW SLAVE STATUS when RESET SLAVE or CHANGE MASTER.
This commit is contained in:
unknown
2003-10-09 00:06:21 +02:00
parent 198e1b9294
commit a7a7a8cacd
33 changed files with 190 additions and 87 deletions
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12
mysql-test/r/rpl_loaddata.result
View File

@ -32,8 +32,8 @@ load data infile '../../std_data/rpl_loaddata.dat' into table t1;
set global sql_slave_skip_counter=1;
start slave;
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.000001 1311 slave-relay-bin.000002 1355 master-bin.000001 Yes Yes 0 0 1311 1355 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.000001 1311 slave-relay-bin.000002 1355 master-bin.000001 Yes Yes 0 0 1311 1355 None 0 No #
set sql_log_bin=0;
delete from t1;
set sql_log_bin=1;
@ -42,8 +42,8 @@ stop slave;
change master to master_user='test';
change master to master_user='root';
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.000001 1442 slave-relay-bin.000001 4 master-bin.000001 No No 0 0 1442 4 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
127.0.0.1 root MASTER_PORT 1 master-bin.000001 1442 slave-relay-bin.000001 4 master-bin.000001 No No 0 0 1442 4 None 0 No #
set global sql_slave_skip_counter=1;
start slave;
set sql_log_bin=0;
@ -53,8 +53,8 @@ load data infile '../../std_data/rpl_loaddata.dat' into table t1;
stop slave;
reset slave;
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 4 slave-relay-bin.000001 4 No No 0 0 0 4 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
127.0.0.1 root MASTER_PORT 1 4 slave-relay-bin.000001 4 No No 0 0 0 4 None 0 No #
reset master;
create table t2 (day date,id int(9),category enum('a','b','c'),name varchar(60),
unique(day));