Merge MDEV-8193 into 10.1

Conflicts:
	sql/rpl_rli.cc

mysql-test/suite/rpl/r/rpl_mdev8193.result

+include/master-slave.inc
+[connection master]
+include/stop_slave_sql.inc
+CALL mtr.add_suppression("Statement is unsafe because it uses a system function that may return a different value on the slave");
+create table t1 (i int);
+insert into t1 values (1),(2);
+insert into t1 values (3),(4);
+insert into t1 select i+20+0*sleep(1) from t1 where i=1;
+Warnings:
+Note	1592	Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statement is unsafe because it uses a system function that may return a different value on the slave.
+flush logs;
+insert into t1 values (5),(6);
+insert into t1 values (7),(8);
+insert into t1 values (9),(10);
+insert into t1 values (11),(12);
+insert into t1 values (13),(14);
+insert into t1 values (15),(16);
+set global slave_parallel_threads = 1;
+start slave until master_log_file='MASTER_FILE', master_log_pos=MASTER_POS;
+drop table t1;
+include/stop_slave_io.inc
+set global slave_parallel_threads = DEFAULT;
+drop table t1;
+include/rpl_end.inc

mysql-test/suite/rpl/t/rpl_mdev8193.test

+--source include/master-slave.inc
+--source include/have_binlog_format_statement.inc
+
+--connection slave
+
+--source include/stop_slave_sql.inc
+
+--connection master
+
+CALL mtr.add_suppression("Statement is unsafe because it uses a system function that may return a different value on the slave");
+create table t1 (i int);
+insert into t1 values (1),(2);
+insert into t1 values (3),(4);
+# This sleep() helps trigger the failure more reliably.
+insert into t1 select i+20+0*sleep(1) from t1 where i=1;
+flush logs;
+insert into t1 values (5),(6);
+insert into t1 values (7),(8);
+insert into t1 values (9),(10);
+
+--let $master_file = query_get_value(show master status,File,1)
+--let $master_pos = query_get_value(show master status,Position,1)
+
+insert into t1 values (11),(12);
+insert into t1 values (13),(14);
+insert into t1 values (15),(16);
+
+--connection slave
+
+set global slave_parallel_threads = 1;
+--replace_result $master_file MASTER_FILE $master_pos MASTER_POS
+eval start slave until master_log_file='$master_file', master_log_pos=$master_pos;
+
+--let $show_statement = SHOW SLAVE STATUS
+--let $field = Slave_SQL_Running
+--let $condition = = 'No'
+--let $wait_timeout = 10
+
+--source include/wait_show_condition.inc
+
+if (`select COUNT(*) <> 11 from t1`) 
+{
+	SELECT * FROM t1;
+	query_vertical show slave status;
+	die "Wrong number of rows in the table";
+}
+
+drop table t1;
+--source include/stop_slave_io.inc
+set global slave_parallel_threads = DEFAULT;
+
+--connection master
+drop table t1;
+
+--let $rpl_only_running_threads= 1
+--source include/rpl_end.inc

sql/rpl_parallel.cc

@@ -94,7 +94,6 @@ handle_queued_pos_update(THD *thd, rpl_parallel_thread::queued_event *qev)
   if (cmp < 0)
   {
     strcpy(rli->group_master_log_name, qev->future_event_master_log_name);
-    rli->notify_group_master_log_name_update();
     rli->group_master_log_pos= qev->future_event_master_log_pos;
   }
   else if (cmp == 0
@@ -2110,6 +2109,7 @@ rpl_parallel::do_event(rpl_group_info *serial_rgi, Log_event *ev,
     {
       memcpy(rli->future_event_master_log_name,
              rev->new_log_ident, rev->ident_len+1);
+      rli->notify_group_master_log_name_update();
     }
   }
 

sql/rpl_rli.cc

@@ -993,7 +993,6 @@ void Relay_log_info::inc_group_relay_log_pos(ulonglong log_pos,
       if (cmp < 0)
       {
         strcpy(group_master_log_name, rgi->future_event_master_log_name);
-        notify_group_master_log_name_update();
         group_master_log_pos= log_pos;
       }
       else if (group_master_log_pos < log_pos)
@@ -1209,7 +1208,8 @@ bool Relay_log_info::is_until_satisfied(my_off_t master_beg_pos)
 
   if (until_condition == UNTIL_MASTER_POS)
   {
-    log_name= group_master_log_name;
+    log_name= (mi->using_parallel() ?
+               future_event_master_log_name : group_master_log_name);
     log_pos= master_beg_pos;
   }
   else