Fixes/improvements in galera test suite

mysql-test/suite/galera/include/auto_increment_offset_restore.inc

+# See auto_increment_offset_restore.inc for details.
+
+if (!$node_1)
+{
+  --die ERROR IN TEST: $node_1 must be set before sourcing auto_increment_offset_save.inc
+}
+
+if (!$node_2)
+{
+  --die ERROR IN TEST: $node_2 must be set before sourcing auto_increment_offset_save.inc
+}
+
+if (!$auto_increment_offset_node_1)
+{
+  --die ERROR IN TEST: $auto_increment_offset_node_1 must be set before sourcing auto_increment_offset_save.inc
+}
+
+if (!$auto_increment_offset_node_2)
+{
+  --die ERROR IN TEST: $auto_increment_offset_node_2 must be set before sourcing auto_increment_offset_save.inc
+}
+
+# Restore original auto_increment_offset values.
+--disable_query_log
+--connection $node_1
+--eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
+--connection $node_2
+--eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
+
+if ($node_3)
+{
+--connection $node_3
+--eval SET @@global.auto_increment_offset = $auto_increment_offset_node_3;
+}
+--enable_query_log

mysql-test/suite/galera/include/auto_increment_offset_save.inc

+# This file can be used to save the @@global.auto_increment_offset value at
+# the beginning of any test that intends to restart any of the participating
+# nodes. This is required as the node may get auto-assigned a different
+# auto_increment_offset value on restart, which could cause MTR's internal
+# post-check to fail. auto_increment_offset_restore.inc can be used at the
+# end of the test to restore these saved values.
+
+# Parameters
+# ----------
+# $node_1
+#   Connection handle for 1st node
+# $node_2
+#   Connection handle for 2nd node
+# $node_3 (optional)
+#   Connection handle for 3rd node
+
+if (!$node_1)
+{
+  --die ERROR IN TEST: $node_1 must be set before sourcing auto_increment_offset_save.inc
+}
+
+if (!$node_2)
+{
+  --die ERROR IN TEST: $node_2 must be set before sourcing auto_increment_offset_save.inc
+}
+
+--connection $node_1
+let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
+--connection $node_2
+let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
+
+if ($node_3)
+{
+  --connection $node_3
+  let $auto_increment_offset_node_3 = `SELECT @@global.auto_increment_offset`;
+}
+

mysql-test/suite/galera/t/galera_ist_restart_joiner.test

@@ -10,10 +10,9 @@
 --source suite/galera/include/galera_have_debug_sync.inc
 
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
 
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(1));
 INSERT INTO t1 VALUES (1, 'a'), (2, 'a'), (3, 'a'), (4, 'a'), (5, 'a'),(6, 'a');
@@ -114,10 +113,7 @@ SELECT COUNT(*) = 0 FROM t3;
 DROP TABLE t1, t2, t3;
 
 # Restore original auto_increment_offset values.
---disable_query_log
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--source include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc
 

mysql-test/suite/galera/t/galera_pc_ignore_sb.test

@@ -6,10 +6,9 @@
 --source include/have_innodb.inc
 
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
 
 --connection node_1
 --let $wsrep_cluster_address_orig = `SELECT @@wsrep_cluster_address`
@@ -40,10 +39,8 @@ SET GLOBAL wsrep_cluster_address = '';
 --source include/start_mysqld.inc
 --source include/wait_until_connected_again.inc
 
---disable_query_log
 # Restore original auto_increment_offset values.
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--source include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc
+

mysql-test/suite/galera/t/galera_restart_nochanges.test

@@ -6,10 +6,9 @@
 --source include/have_innodb.inc
 
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
 
 --connection node_1
 CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
@@ -33,11 +32,9 @@ SELECT VARIABLE_VALUE = 2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_N
 
 DROP TABLE t1;
 
---disable_query_log
 # Restore original auto_increment_offset values.
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2a
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--let $node_2=node_2a
+--source include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc
 

mysql-test/suite/galera/t/galera_split_brain.test

@@ -6,17 +6,16 @@
 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
+# Save original auto_increment_offset values.
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
+
 call mtr.add_suppression("WSREP: TO isolation failed for: ");
 
 --connection node_1
 --let $wsrep_cluster_address_orig = `SELECT @@wsrep_cluster_address`
 
-# Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
-
 --connection node_2
 --source include/kill_galera.inc
 
@@ -44,10 +43,8 @@ SET GLOBAL wsrep_cluster_address = '';
 --source include/wait_until_connected_again.inc
 
 # Restore original auto_increment_offset values.
---disable_query_log
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2a
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--let $node_2=node_2a
+--source include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc
 

mysql-test/suite/galera/t/galera_suspend_slave.test

@@ -8,10 +8,9 @@
 --source include/have_innodb.inc
 
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
 
 --connection node_1
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
@@ -56,11 +55,7 @@ SELECT COUNT(*) = 1 FROM t1;
 
 DROP TABLE t1;
 
---disable_query_log
 # Restore original auto_increment_offset values.
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2a
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--let $node_2=node_2a
+--source include/auto_increment_offset_restore.inc
 

mysql-test/suite/galera/t/galera_var_dirty_reads.test

@@ -5,13 +5,10 @@
 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
---disable_query_log
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
---enable_query_log
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
 
 --connection node_2
 --let $wsrep_cluster_address_saved = `SELECT @@global.wsrep_cluster_address`
@@ -49,13 +46,8 @@ SELECT * FROM t1;
 # Cleanup
 DROP TABLE t1;
 
---disable_query_log
 # Restore original auto_increment_offset values.
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---enable_query_log
+--source include/auto_increment_offset_restore.inc
 
 --source include/galera_end.inc
 --echo # End of test

mysql-test/suite/galera/t/mysql-wsrep#31.test

 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
+# Save original auto_increment_offset values.
+--let $node_1=node_1
+--let $node_2=node_2
+--source include/auto_increment_offset_save.inc
+
 --connection node_1
 
 CREATE TABLE t1 (f1 CHAR(255)) ENGINE=InnoDB;
@@ -36,4 +41,13 @@ if ($galera_wsrep_start_position != $expected_position)
 DROP TABLE t1;
 DROP DATABASE db;
 
+--connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2
+--source include/wait_until_connected_again.inc
+
+# Restore original auto_increment_offset values.
+--let $node_2=node_2a
+--source include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc
+
 

mysql-test/suite/galera_3nodes/t/galera_certification_ccc.test

@@ -10,12 +10,10 @@
 --source include/galera_connect.inc
 
 # Save original auto_increment_offset values.
---connection node_1
-let $auto_increment_offset_node_1 = `SELECT @@global.auto_increment_offset`;
---connection node_2
-let $auto_increment_offset_node_2 = `SELECT @@global.auto_increment_offset`;
---connection node_3
-let $auto_increment_offset_node_3 = `SELECT @@global.auto_increment_offset`;
+--let $node_1=node_1
+--let $node_2=node_2
+--let $node_3=node_3
+--source ../galera/include/auto_increment_offset_save.inc
 
 --connection node_1
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) ENGINE=InnoDB;
@@ -49,12 +47,7 @@ SELECT COUNT(*) = 2 FROM t1;
 DROP TABLE t1;
 
 # Restore original auto_increment_offset values.
---disable_query_log
---connection node_1
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_1;
---connection node_2
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_2;
---connection node_3
---eval SET @@global.auto_increment_offset = $auto_increment_offset_node_3;
---enable_query_log
+--source ../galera/include/auto_increment_offset_restore.inc
+
+--source include/galera_end.inc