MDEV-26: Global transaction ID

More fixes for test failures in Buildbot:

 - Do not run crashing test in Valgrind.

 - FLUSH TABLES did not work to avoid errors about not closed tables when
   crashing server. Suppress the messages instead.

 - Rewrite multi-source test case to only start one pair of slave threads at a
   time, to work-around the bug MDEV-4352.

mysql-test/suite/multi_source/gtid.result

 CHANGE MASTER 'slave1' TO master_port=MYPORT_1, master_host='127.0.0.1', master_user='root';
 CHANGE MASTER 'slave2' TO master_port=MYPORT_2, master_host='127.0.0.1', master_user='root';
-start all slaves;
-Warnings:
-Note	1937	SLAVE 'slave2' started
-Note	1937	SLAVE 'slave1' started
 set default_master_connection = 'slave1';
+START SLAVE;
 include/wait_for_slave_to_start.inc
 set default_master_connection = 'slave2';
+START SLAVE;
 include/wait_for_slave_to_start.inc
 set default_master_connection = '';
 CHANGE MASTER TO master_port=MYPORT_3, master_host='127.0.0.1', master_user='root';

mysql-test/suite/multi_source/gtid.test

@@ -15,10 +15,11 @@
 eval CHANGE MASTER 'slave1' TO master_port=$SERVER_MYPORT_1, master_host='127.0.0.1', master_user='root';
 --replace_result $SERVER_MYPORT_2 MYPORT_2
 eval CHANGE MASTER 'slave2' TO master_port=$SERVER_MYPORT_2, master_host='127.0.0.1', master_user='root';
-start all slaves;
 set default_master_connection = 'slave1';
+START SLAVE;
 --source include/wait_for_slave_to_start.inc
 set default_master_connection = 'slave2';
+START SLAVE;
 --source include/wait_for_slave_to_start.inc
 set default_master_connection = '';
 

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

 include/rpl_init.inc [topology=1->2]
 *** Test crashing master, causing slave IO thread to reconnect while SQL thread is running ***
+call mtr.add_suppression("Checking table:");
+call mtr.add_suppression("client is using or hasn't closed the table properly");
+call mtr.add_suppression("Table .* is marked as crashed and should be repaired");
 ALTER TABLE mysql.rpl_slave_state ENGINE=InnoDB;
 CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1, 0);
 include/stop_slave.inc
 CHANGE MASTER TO master_host = '127.0.0.1', master_port = MASTER_PORT,
 MASTER_GTID_POS=AUTO;
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 INSERT INTO t1 VALUES (2,1);
 INSERT INTO t1 VALUES (3,1);
 include/start_slave.inc
@@ -26,9 +26,6 @@ SHOW BINLOG EVENTS IN 'master-bin.000001' LIMIT 1,1;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
 master-bin.000001	#	Gtid_list	#	#	[]
 CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 include/start_slave.inc
 SET gtid_domain_id= 1;
 INSERT INTO t1 VALUES (1);
@@ -67,37 +64,22 @@ include/stop_slave.inc
 SET GLOBAL debug_dbug="+d,inject_crash_before_write_rpl_slave_state";
 START SLAVE;
 INSERT INTO t1 VALUES (4);
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 include/stop_slave.inc
 SET GLOBAL debug_dbug="+d,crash_commit_before";
 START SLAVE;
 INSERT INTO t1 VALUES (5);
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 include/stop_slave.inc
 SET GLOBAL debug_dbug="+d,crash_commit_after";
 START SLAVE;
 INSERT INTO t1 VALUES (6);
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 include/stop_slave.inc
 SET GLOBAL debug_dbug="+d,inject_crash_before_flush_rli";
 START SLAVE;
 INSERT INTO t1 VALUES (7);
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 include/stop_slave.inc
 SET GLOBAL debug_dbug="+d,inject_crash_after_flush_rli";
 START SLAVE;
 INSERT INTO t1 VALUES (8);
-SET sql_log_bin=0;
-FLUSH TABLES;
-SET sql_log_bin=1;
 SELECT * FROM t1 ORDER BY a;
 a
 1

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

 --source include/have_innodb.inc
 --source include/have_debug.inc
+# Valgrind does not work well with test that crashes the server
+--source include/not_valgrind.inc
 
 --let $rpl_topology=1->2
 --source include/rpl_init.inc
@@ -7,6 +9,10 @@
 --echo *** Test crashing master, causing slave IO thread to reconnect while SQL thread is running ***
 
 --connection server_1
+call mtr.add_suppression("Checking table:");
+call mtr.add_suppression("client is using or hasn't closed the table properly");
+call mtr.add_suppression("Table .* is marked as crashed and should be repaired");
+
 ALTER TABLE mysql.rpl_slave_state ENGINE=InnoDB;
 CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1, 0);
@@ -20,9 +26,6 @@ eval CHANGE MASTER TO master_host = '127.0.0.1', master_port = $MASTER_MYPORT,
      MASTER_GTID_POS=AUTO;
 
 --connection server_1
-# Attempt to get tables closed and avoid "table ... is marked as crashed"
-# messages in error log.
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 INSERT INTO t1 VALUES (2,1);
 INSERT INTO t1 VALUES (3,1);
 
@@ -84,7 +87,6 @@ RESET MASTER;
 --replace_column 2 # 4 # 5 #
 SHOW BINLOG EVENTS IN 'master-bin.000001' LIMIT 1,1;
 CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 
 --connection server_2
 --source include/start_slave.inc
@@ -153,7 +155,6 @@ EOF
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 --let $wait_condition= SELECT COUNT(*) = 4 FROM t1
 --source include/wait_condition.inc
 
@@ -179,7 +180,6 @@ EOF
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 --let $wait_condition= SELECT COUNT(*) = 5 FROM t1
 --source include/wait_condition.inc
 
@@ -205,7 +205,6 @@ EOF
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 --let $wait_condition= SELECT COUNT(*) = 6 FROM t1
 --source include/wait_condition.inc
 
@@ -231,7 +230,6 @@ EOF
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 --let $wait_condition= SELECT COUNT(*) = 7 FROM t1
 --source include/wait_condition.inc
 
@@ -257,7 +255,6 @@ EOF
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 
-SET sql_log_bin=0; FLUSH TABLES; SET sql_log_bin=1;
 --let $wait_condition= SELECT COUNT(*) = 8 FROM t1
 --source include/wait_condition.inc