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MDEV-29499 Improving the 'Can't execute init_slave query' error message with the actual failure

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Currently, there are multiple error codes reported for the issue
'Can't execute init_slave query'. Those error codes are the underlying
reason the init_slave query cannot be executed, but this makes it
difficult to detect the issue in an automated way.

This patch introduces a new error code, ER_INIT_SLAVE_ERROR, to unify
all the errors related to the init_slave query. The ER_INIT_SLAVE_ERROR
error is raised for any issue related to the init_slave query, and the
underlying error code and message are included in the Last_SQL_Error
field.

Reviewed by:
Jimmy Hu <jimmy.hu@mariadb.com>
Brandon Nesterenko <brandon.nesterenko@mariadb.com>
This commit is contained in:
Apostolis Stamatis
2025-04-29 19:24:11 +03:00
committed by Brandon Nesterenko
parent 28dbfcb397
commit 247e2f8d4d
5 changed files with 18 additions and 8 deletions
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11
mysql-test/suite/rpl/t/rpl_init_slave_errors.test
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@@ -72,6 +72,10 @@ set @@global.debug_dbug = @saved_dbug;
######################################################################
# Injecting faults in the init_slave option
######################################################################
# MDEV-29499 introduces a new error code for init_slave errors
# 4226 = ER_INIT_SLAVE_ERROR
# 1064 = ER_PARSE_ERROR
connection slave;
reset slave;
@@ -79,11 +83,14 @@ reset slave;
SET GLOBAL init_slave= "garbage";
start slave;
# 1064 = ER_PARSE_ERROR
--let $slave_sql_errno= 1064
# 4226 = ER_INIT_SLAVE_ERROR
--let $slave_sql_errno= 4226
# This test also checks that the root error code - 1064 in this case - is
# included in the Last_SQL_Error
--let $show_slave_sql_error= 1
--source include/wait_for_slave_sql_error.inc
######################################################################
# Clean up
######################################################################