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MDEV-26: Global transaction ID. First alpha release.

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Merge of 10.0-mdev26 feature tree into 10.0-base.

Global transaction ID is prepended to each event group in the binlog.

Slave connect can request to start from GTID position instead of specifying
file name/offset of master binlog. This facilitates easy switch to a new
master.

Slave GTID state is stored in a table mysql.rpl_slave_state, which can be
InnoDB to get crash-safe slave state.

GTID includes a replication domain ID, allowing to keep track of distinct
positions for each of multiple masters.
This commit is contained in:
unknown 2013-04-15 10:55:27 +02:00
commit 665a31af2b
251 changed files with 16989 additions and 8573 deletions
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15
sql/sql_base.cc
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@ -345,7 +345,7 @@ uint create_tmp_table_def_key(THD *thd, char *key,
const char *db, const char *table_name)
{
uint key_length= create_table_def_key(key, db, table_name);
int4store(key + key_length, thd->server_id);
int4store(key + key_length, thd->variables.server_id);
int4store(key + key_length + 4, thd->variables.pseudo_thread_id);
key_length+= TMP_TABLE_KEY_EXTRA;
return key_length;
@ -388,6 +388,14 @@ bool table_def_init(void)
init_tdc_psi_keys();
#endif
mysql_mutex_init(key_LOCK_open, &LOCK_open, MY_MUTEX_INIT_FAST);
mysql_mutex_record_order(&LOCK_active_mi, &LOCK_open);
/*
When we delete from the table_def_cache(), the free function
table_def_free_entry() is invoked from my_hash_delete(), which calls
free_table_share(), which may unload plugins, which can remove status
variables and hence takes LOCK_status. Record this locking order here.
*/
mysql_mutex_record_order(&LOCK_open, &LOCK_status);
oldest_unused_share= &end_of_unused_share;
end_of_unused_share.prev= &oldest_unused_share;
@ -2662,7 +2670,7 @@ bool open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT *mem_root,
{
DBUG_PRINT("error",
("query_id: %lu server_id: %u pseudo_thread_id: %lu",
(ulong) table->query_id, (uint) thd->server_id,
(ulong) table->query_id, (uint) thd->variables.server_id,
(ulong) thd->variables.pseudo_thread_id));
my_error(ER_CANT_REOPEN_TABLE, MYF(0), table->alias.c_ptr());
DBUG_RETURN(TRUE);
@ -5939,7 +5947,8 @@ TABLE *open_table_uncached(THD *thd, handlerton *hton,
("table: '%s'.'%s' path: '%s' server_id: %u "
"pseudo_thread_id: %lu",
db, table_name, path,
(uint) thd->server_id, (ulong) thd->variables.pseudo_thread_id));
(uint) thd->variables.server_id,
(ulong) thd->variables.pseudo_thread_id));
/* Create the cache_key for temporary tables */
key_length= create_tmp_table_def_key(thd, cache_key, db, table_name);