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BUG#38197 Errors in @@init_slave not visible in 'show slave status'

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Some errors that cause the slave SQL thread to stop are not shown in the
Slave_SQL_Error column of "SHOW SLAVE STATUS". Instead, the error is only 
in the server's error log.
      
That makes it difficult to analyze the error for the user. One example of an error
that stops the slave but is not shown by "SHOW SLAVE STATUS" is when @@global.init_slave
is set incorrectly (e.g., it contains something that is not valid SQL).
      
Three failures were not correctly reported:
      
1 - Failures during slave thread initialization
2 - Failures while initializing the relay log position right after
starting the slave thread.
3 - Failures while processing queries passed through the init_slave
option.
      
This patch fixes the issues by reporting the errors through relay-info->report.
This commit is contained in:
Alfranio Correia
2009-02-11 11:56:25 +00:00
parent 4c67bc0c76
commit f3314e90e3
5 changed files with 129 additions and 14 deletions
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10
mysql-test/suite/rpl/r/rpl_bug33931.result
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@@ -1,5 +1,5 @@
reset master;
call mtr.add_suppression("Failed during slave.*thread initialization");
call mtr.add_suppression("Failed during slave thread initialization");
stop slave;
reset slave;
SET GLOBAL debug="d,simulate_io_slave_error_on_init,simulate_sql_slave_error_on_init";
@@ -23,8 +23,8 @@ Replicate_Do_Table
Replicate_Ignore_Table
Replicate_Wild_Do_Table
Replicate_Wild_Ignore_Table
Last_Errno 0
Last_Error
Last_Errno #
Last_Error Failed during slave thread initialization
Skip_Counter 0
Exec_Master_Log_Pos 0
Relay_Log_Space #
@@ -41,6 +41,6 @@ Seconds_Behind_Master #
Master_SSL_Verify_Server_Cert No
Last_IO_Errno 0
Last_IO_Error
Last_SQL_Errno 0
Last_SQL_Error
Last_SQL_Errno #
Last_SQL_Error Failed during slave thread initialization
SET GLOBAL debug="";