diff options
Diffstat (limited to 'sql/sql_repl.cc')
| -rw-r--r-- | sql/sql_repl.cc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc index 1ee770f70ef..787f9dcae2c 100644 --- a/sql/sql_repl.cc +++ b/sql/sql_repl.cc @@ -1347,6 +1347,10 @@ bool change_master(THD* thd, Master_info* mi) const char* errmsg= 0; bool need_relay_log_purge= 1; bool ret= FALSE; + char saved_host[HOSTNAME_LENGTH + 1]; + uint saved_port; + char saved_log_name[FN_REFLEN]; + my_off_t saved_log_pos; DBUG_ENTER("change_master"); lock_slave_threads(mi); @@ -1389,6 +1393,17 @@ bool change_master(THD* thd, Master_info* mi) */ /* + Before processing the command, save the previous state. + */ + char *pos; + pos= strmake(saved_host, mi->host, HOSTNAME_LENGTH); + pos= '\0'; + saved_port= mi->port; + pos= strmake(saved_log_name, mi->master_log_name, FN_REFLEN - 1); + pos= '\0'; + saved_log_pos= mi->master_log_pos; + + /* If the user specified host or port without binlog or position, reset binlog's name to FIRST and position to 4. */ @@ -1586,6 +1601,15 @@ bool change_master(THD* thd, Master_info* mi) /* Clear the errors, for a clean start */ mi->rli.clear_error(); mi->rli.clear_until_condition(); + + sql_print_information("'CHANGE MASTER TO executed'. " + "Previous state master_host='%s', master_port='%u', master_log_file='%s', " + "master_log_pos='%ld'. " + "New state master_host='%s', master_port='%u', master_log_file='%s', " + "master_log_pos='%ld'.", saved_host, saved_port, saved_log_name, + (ulong) saved_log_pos, mi->host, mi->port, mi->master_log_name, + (ulong) mi->master_log_pos); + /* If we don't write new coordinates to disk now, then old will remain in relay-log.info until START SLAVE is issued; but if mysqld is shutdown |