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MDEV-26: Global transaction ID.

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Change of user interface to be more logical and more in line with expectations
to work similar to old-style replication.

User can now explicitly choose in CHANGE MASTER whether binlog position is
taken into account (master_gtid_pos=current_pos) or not (master_gtid_pos=
slave_pos) when slave connects to master.

@@gtid_pos is replaced by three separate variables @@gtid_slave_pos (can
be set by user, replicated GTIDs only), @@gtid_binlog_pos (read only), and
@@gtid_current_pos (a combination of the two, most recent GTID within each
domain). mysql.rpl_slave_state is renamed to mysql.gtid_slave_pos to match.

This fixes MDEV-4474.
This commit is contained in:
unknown
2013-05-22 17:36:48 +02:00
parent d795bc9ff8
commit 1cd6eb5f94
84 changed files with 996 additions and 513 deletions
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9
sql/sql_lex.h
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@ -301,8 +301,10 @@ struct LEX_MASTER_INFO
changed variable or if it should be left at old value
*/
enum {LEX_MI_UNCHANGED, LEX_MI_DISABLE, LEX_MI_ENABLE}
ssl, ssl_verify_server_cert, heartbeat_opt, repl_ignore_server_ids_opt,
use_gtid_opt;
ssl, ssl_verify_server_cert, heartbeat_opt, repl_ignore_server_ids_opt;
enum {
LEX_GTID_UNCHANGED, LEX_GTID_NO, LEX_GTID_CURRENT_POS, LEX_GTID_SLAVE_POS
} use_gtid_opt;
void init()
{
@ -318,9 +320,10 @@ struct LEX_MASTER_INFO
pos= relay_log_pos= server_id= port= connect_retry= 0;
heartbeat_period= 0;
ssl= ssl_verify_server_cert= heartbeat_opt=
repl_ignore_server_ids_opt= use_gtid_opt= LEX_MI_UNCHANGED;
repl_ignore_server_ids_opt= LEX_MI_UNCHANGED;
gtid_pos_str.length= 0;
gtid_pos_str.str= NULL;
use_gtid_opt= LEX_GTID_UNCHANGED;
}
};