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BUG#11809016 - NO WAY TO DISCOVER AN INSTANCE IS NO LONGER A SLAVE FOLLOWING MYSQL BUG#28796

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Before BUG#28796, an empty host was used to identify that an instance was no
longer a slave. However, BUG#28796 changed this behavior and one cannot set
an empty host. Besides, a RESET SLAVE only cleans up information on the next
event to retrieve from the master, disables ssl and resets heartbeat period.
So a call to SHOW SLAVE STATUS after issuing a RESET SLAVE still returns some
valid information, such as host, port, user and password.

To fix this problem, we have introduced the command RESET SLAVE ALL that does
what a regular RESET SLAVE does and also clears host, port, user and password
information thus allowing users to identify when an instance is no longer a
slave.
This commit is contained in:
Alfranio Correia
2011-07-18 18:18:03 +01:00
parent 2014480096
commit c1d55fb255
8 changed files with 71 additions and 5 deletions
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5
sql/sql_repl.cc
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@@ -1285,8 +1285,9 @@ int reset_slave(THD *thd, Master_info* mi)
goto err;
}
/* Clear master's log coordinates */
init_master_log_pos(mi);
/* Clear master's log coordinates and associated information */
mi->clear_in_memory_info(thd->lex->reset_slave_info.all);
/*
Reset errors (the idea is that we forget about the
old master).