Some more fixes for --suite=galera_3nodes

mysql-test/suite/galera_3nodes/r/galera_pc_bootstrap.result

 CREATE TABLE t1 (f1 INTEGER);
+connection node_1;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
+connection node_2;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
+connect node_3, 127.0.0.1, root, , test, $NODE_MYPORT_3;
+connection node_3;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
 SET SESSION wsrep_sync_wait = 0;
+connection node_2;
 SET GLOBAL wsrep_provider_options = 'pc.bootstrap=1';
 SHOW STATUS LIKE 'wsrep_cluster_size';
 Variable_name	Value
@@ -11,15 +16,21 @@ SHOW STATUS LIKE 'wsrep_cluster_status';
 Variable_name	Value
 wsrep_cluster_status	Primary
 INSERT INTO t1 VALUES (1);
+connection node_2;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=0';
+connection node_1;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=0';
+connection node_3;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=0';
+connection node_1;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 1
+connection node_2;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 1
+connection node_3;
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 1

mysql-test/suite/galera_3nodes/r/galera_pc_weight.result

+connection node_1;
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 3
+1
 SET GLOBAL wsrep_provider_options = 'pc.weight=3';
 SELECT VARIABLE_VALUE = 5 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 5
+1
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
+connection node_2;
 SET SESSION wsrep_sync_wait=0;
 SET SESSION wsrep_on=OFF;
 SET SESSION wsrep_on=ON;
@@ -12,6 +16,7 @@ Variable_name	Value
 wsrep_cluster_size	2
 SHOW STATUS LIKE 'wsrep_cluster_weight';
 Variable_name	Value
+wsrep_cluster_weight	0
 SHOW STATUS LIKE 'wsrep_cluster_status';
 Variable_name	Value
 wsrep_cluster_status	non-Primary
@@ -27,6 +32,7 @@ wsrep_local_state	0
 SHOW STATUS LIKE 'wsrep_local_state_comment';
 Variable_name	Value
 wsrep_local_state_comment	Initialized
+connection node_3;
 SET SESSION wsrep_sync_wait=0;
 SET SESSION wsrep_on=OFF;
 SET SESSION wsrep_on=ON;
@@ -35,6 +41,7 @@ Variable_name	Value
 wsrep_cluster_size	2
 SHOW STATUS LIKE 'wsrep_cluster_weight';
 Variable_name	Value
+wsrep_cluster_weight	0
 SHOW STATUS LIKE 'wsrep_cluster_status';
 Variable_name	Value
 wsrep_cluster_status	non-Primary
@@ -50,8 +57,10 @@ wsrep_local_state	0
 SHOW STATUS LIKE 'wsrep_local_state_comment';
 Variable_name	Value
 wsrep_local_state_comment	Initialized
+connection node_1;
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 3
+1
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 VARIABLE_VALUE = 'Primary'
 1
@@ -70,12 +79,18 @@ VARIABLE_VALUE = 'Synced'
 SET GLOBAL wsrep_provider_options = 'pc.weight=1';
 SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 1
+1
+connection node_1;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=0';
+connection node_2;
+connection node_3;
+connection node_1;
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 VARIABLE_VALUE = 3
 1
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 3
+1
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 VARIABLE_VALUE = 'Primary'
 1
@@ -91,11 +106,13 @@ VARIABLE_VALUE = 4
 SELECT VARIABLE_VALUE = 'Synced' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_state_comment';
 VARIABLE_VALUE = 'Synced'
 1
+connection node_2;
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 VARIABLE_VALUE = 3
 1
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 3
+1
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 VARIABLE_VALUE = 'Primary'
 1
@@ -111,11 +128,13 @@ VARIABLE_VALUE = 4
 SELECT VARIABLE_VALUE = 'Synced' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_state_comment';
 VARIABLE_VALUE = 'Synced'
 1
+connection node_3;
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 VARIABLE_VALUE = 3
 1
 SELECT VARIABLE_VALUE = 3 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_weight';
 VARIABLE_VALUE = 3
+1
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 VARIABLE_VALUE = 'Primary'
 1
@@ -131,12 +150,15 @@ VARIABLE_VALUE = 4
 SELECT VARIABLE_VALUE = 'Synced' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_state_comment';
 VARIABLE_VALUE = 'Synced'
 1
+connection node_1;
 SET GLOBAL wsrep_provider_options = 'pc.weight=1';
 CALL mtr.add_suppression('WSREP: gcs_caused\\(\\) returned -1');
+connection node_2;
 CALL mtr.add_suppression('overriding reported weight for');
 CALL mtr.add_suppression('SYNC message from member');
 CALL mtr.add_suppression('user message in state LEAVING');
 CALL mtr.add_suppression('sending install message failed: (Transport endpoint is not connected|Socket is not connected)');
+connection node_3;
 CALL mtr.add_suppression('WSREP: user message in state LEAVING');
 CALL mtr.add_suppression('sending install message failed: (Transport endpoint is not connected|Socket is not connected)');
 CALL mtr.add_suppression('overriding reported weight for');

mysql-test/suite/galera_3nodes/r/galera_safe_to_bootstrap.result

@@ -2,21 +2,35 @@ CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
+connection node_2;
+connection node_1;
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
+connect node_3, 127.0.0.1, root, , test, $NODE_MYPORT_3;
+connection node_3;
+connection node_1;
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 1']
+connection node_2;
+connection node_1;
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
 include/assert_grep.inc [grastate.dat does not have 'safe_to_bootstrap: 0']
+connection node_2;
+connection node_1;
 SET SESSION wsrep_on = OFF;
 Killing server ...
 safe_to_bootstrap: 1
 safe_to_bootstrap: 0
 safe_to_bootstrap: 0
+connection node_1;
+connection node_2;
+connection node_3;
+connection node_2;
 CALL mtr.add_suppression("Failed to prepare for incremental state transfer");
+connection node_3;
 CALL mtr.add_suppression("Failed to prepare for incremental state transfer");
 SHOW CREATE TABLE t1;
 Table	Create Table

mysql-test/suite/galera_3nodes/r/galera_var_dirty_reads2.result

 CREATE TABLE t1 (f1 INTEGER);
 INSERT INTO t1 VALUES (1);
+connection node_2;
 SET GLOBAL wsrep_provider_options='gmcast.isolate=1';
+connection node_1;
+connection node_2;
 SET SESSION wsrep_sync_wait = 0;
 SET SESSION wsrep_dirty_reads = 1;
 SELECT f1 FROM t1;
@@ -45,4 +48,6 @@ SELECT COUNT(*) > 0 FROM INFORMATION_SCHEMA.PROCESSLIST;
 COUNT(*) > 0
 1
 SET GLOBAL wsrep_provider_options='gmcast.isolate=0';
+connection node_1;
+connection node_2;
 DROP TABLE t1;

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

@@ -4,7 +4,7 @@
 
 --source include/galera_cluster.inc
 --source include/have_innodb.inc
---source include/have_mariabackup.inc
+--source suite/galera/include/have_mariabackup.inc
 
 --let $galera_connection_name = node_3
 --let $galera_server_number = 3