cleanup: remove slave background thread, use handle_manager thread instead

1 files changed, 3 insertions, 12 deletions

diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 8d67bc53164..c0bf69b38b9 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -385,7 +385,6 @@ static bool binlog_format_used= false;
 LEX_STRING opt_init_connect, opt_init_slave;
 mysql_cond_t COND_thread_cache;
 static mysql_cond_t COND_flush_thread_cache;
-mysql_cond_t COND_slave_background;
 static DYNAMIC_ARRAY all_options;
 
 /* Global variables */
@@ -758,7 +757,7 @@ mysql_mutex_t
   LOCK_crypt,
   LOCK_global_system_variables,
   LOCK_user_conn, LOCK_slave_list,
-  LOCK_connection_count, LOCK_error_messages, LOCK_slave_background;
+  LOCK_connection_count, LOCK_error_messages;
 
 mysql_mutex_t LOCK_stats, LOCK_global_user_client_stats,
               LOCK_global_table_stats, LOCK_global_index_stats;
@@ -947,8 +946,7 @@ PSI_mutex_key key_LOCK_stats,
 PSI_mutex_key key_LOCK_gtid_waiting;
 
 PSI_mutex_key key_LOCK_after_binlog_sync;
-PSI_mutex_key key_LOCK_prepare_ordered, key_LOCK_commit_ordered,
-  key_LOCK_slave_background;
+PSI_mutex_key key_LOCK_prepare_ordered, key_LOCK_commit_ordered;
 PSI_mutex_key key_TABLE_SHARE_LOCK_share;
 
 static PSI_mutex_info all_server_mutexes[]=
@@ -1017,7 +1015,6 @@ static PSI_mutex_info all_server_mutexes[]=
   { &key_LOCK_prepare_ordered, "LOCK_prepare_ordered", PSI_FLAG_GLOBAL},
   { &key_LOCK_after_binlog_sync, "LOCK_after_binlog_sync", PSI_FLAG_GLOBAL},
   { &key_LOCK_commit_ordered, "LOCK_commit_ordered", PSI_FLAG_GLOBAL},
-  { &key_LOCK_slave_background, "LOCK_slave_background", PSI_FLAG_GLOBAL},
   { &key_LOG_INFO_lock, "LOG_INFO::lock", 0},
   { &key_LOCK_thread_count, "LOCK_thread_count", PSI_FLAG_GLOBAL},
   { &key_LOCK_thread_cache, "LOCK_thread_cache", PSI_FLAG_GLOBAL},
@@ -1074,7 +1071,7 @@ PSI_cond_key key_TC_LOG_MMAP_COND_queue_busy;
 PSI_cond_key key_COND_rpl_thread_queue, key_COND_rpl_thread,
   key_COND_rpl_thread_stop, key_COND_rpl_thread_pool,
   key_COND_parallel_entry, key_COND_group_commit_orderer,
-  key_COND_prepare_ordered, key_COND_slave_background;
+  key_COND_prepare_ordered;
 PSI_cond_key key_COND_wait_gtid, key_COND_gtid_ignore_duplicates;
 
 static PSI_cond_info all_server_conds[]=
@@ -1124,7 +1121,6 @@ static PSI_cond_info all_server_conds[]=
   { &key_COND_parallel_entry, "COND_parallel_entry", 0},
   { &key_COND_group_commit_orderer, "COND_group_commit_orderer", 0},
   { &key_COND_prepare_ordered, "COND_prepare_ordered", 0},
-  { &key_COND_slave_background, "COND_slave_background", 0},
   { &key_COND_start_thread, "COND_start_thread", PSI_FLAG_GLOBAL},
   { &key_COND_wait_gtid, "COND_wait_gtid", 0},
   { &key_COND_gtid_ignore_duplicates, "COND_gtid_ignore_duplicates", 0}
@@ -2379,8 +2375,6 @@ static void clean_up_mutexes()
   mysql_cond_destroy(&COND_prepare_ordered);
   mysql_mutex_destroy(&LOCK_after_binlog_sync);
   mysql_mutex_destroy(&LOCK_commit_ordered);
-  mysql_mutex_destroy(&LOCK_slave_background);
-  mysql_cond_destroy(&COND_slave_background);
   DBUG_VOID_RETURN;
 }
 
@@ -4838,9 +4832,6 @@ static int init_thread_environment()
                    MY_MUTEX_INIT_SLOW);
   mysql_mutex_init(key_LOCK_commit_ordered, &LOCK_commit_ordered,
                    MY_MUTEX_INIT_SLOW);
-  mysql_mutex_init(key_LOCK_slave_background, &LOCK_slave_background,
-                   MY_MUTEX_INIT_SLOW);
-  mysql_cond_init(key_COND_slave_background, &COND_slave_background, NULL);
 
 #ifdef HAVE_OPENSSL
   mysql_mutex_init(key_LOCK_des_key_file,