database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-12179: Per-engine mysql.gtid_slave_pos table

Browse Source 
Intermediate commit.

Move the discovery of mysql.gtid_slave_pos* tables into the SQL thread.

This avoids doing things like opening tables and scanning the mysql
schema for tables inside of the START SLAVE statement, which might
interact badly with existing transaction or table locks.

(Even though START SLAVE is documented to implicitly commit any active
transactions, this appears not to be the case in current code).

Table discovery fits naturally in the SQL thread init code, next to
the loading of mysql.gtid_slave_pos state.
This commit is contained in:
Kristian Nielsen
2017-04-23 10:49:58 +02:00
parent 1af3165f98
commit 89aad233de
9 changed files with 63 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sql/rpl_mi.h
View File

@ -377,7 +377,7 @@ void create_logfile_name_with_suffix(char *res_file_name, size_t length,
uchar *get_key_master_info(Master_info *mi, size_t *length,
my_bool not_used __attribute__((unused)));
void free_key_master_info(Master_info *mi);
uint any_slave_sql_running();
uint any_slave_sql_running(bool already_locked);
bool give_error_if_slave_running(bool already_lock);
#endif /* HAVE_REPLICATION */