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MDEV-26: Global Transaction ID.

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Implement CHANGE MASTER TO ... MASTER_GTID_POS = "x-y-z,a-b-c".
This commit is contained in:
unknown
2013-02-15 15:55:17 +01:00
parent 2d723aa9eb
commit 1c6271b36a
6 changed files with 108 additions and 10 deletions
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36
sql/sql_repl.cc
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@ -2231,6 +2231,7 @@ bool change_master(THD* thd, Master_info* mi, bool *master_info_added)
char relay_log_info_file_tmp[FN_REFLEN];
my_off_t saved_log_pos;
LEX_MASTER_INFO* lex_mi= &thd->lex->mi;
slave_connection_state tmp_slave_state;
DBUG_ENTER("change_master");
*master_info_added= false;
@ -2261,6 +2262,27 @@ bool change_master(THD* thd, Master_info* mi, bool *master_info_added)
goto err;
}
if (lex_mi->gtid_pos_str.str)
{
if (master_info_index->give_error_if_slave_running())
{
ret= TRUE;
goto err;
}
/*
First load it into a dummy object, to check for parse errors.
We do not want to wipe the previous state if there is an error
in the syntax of the new state!
*/
if (tmp_slave_state.load(lex_mi->gtid_pos_str.str,
lex_mi->gtid_pos_str.length))
{
my_error(ER_INCORRECT_GTID_STATE, MYF(0));
ret= TRUE;
goto err;
}
}
thd_proc_info(thd, "Changing master");
create_logfile_name_with_suffix(master_info_file_tmp,
@ -2426,7 +2448,7 @@ bool change_master(THD* thd, Master_info* mi, bool *master_info_added)
mi->rli.group_relay_log_pos= mi->rli.event_relay_log_pos= lex_mi->relay_log_pos;
}
if (lex_mi->gtid_pos_auto)
if (lex_mi->gtid_pos_auto || lex_mi->gtid_pos_str.str)
mi->gtid_pos_auto= true;
else if (lex_mi->gtid_pos_str.str ||
lex_mi->log_file_name || lex_mi->pos ||
@ -2463,6 +2485,18 @@ bool change_master(THD* thd, Master_info* mi, bool *master_info_added)
strmake(mi->master_log_name, mi->rli.group_master_log_name,
sizeof(mi->master_log_name)-1);
}
if (lex_mi->gtid_pos_str.str)
{
if (rpl_global_gtid_slave_state.load(thd, lex_mi->gtid_pos_str.str,
lex_mi->gtid_pos_str.length, true))
{
my_error(ER_FAILED_GTID_STATE_INIT, MYF(0));
ret= TRUE;
goto err;
}
}
/*
Relay log's IO_CACHE may not be inited, if rli->inited==0 (server was never
a slave before).