diff --git a/mysql-test/include/diff_servers.inc b/mysql-test/include/diff_servers.inc
new file mode 100644
index 00000000000..5ec7efc38b9
--- /dev/null
+++ b/mysql-test/include/diff_servers.inc
@@ -0,0 +1,67 @@
+# ==== Purpose ====
+#
+# Check that two or more servers have identical databases; fail if not.
+#
+# ==== Usage ====
+#
+# --let $diff_servers= 1 2
+# [--let $databases= db1 db2 ...]
+# [--let $rpl_debug= 1]
+# --source include/diff_servers.inc
+
+# pretty-print header
+--let $_ds_info= servers=$diff_servers
+if ($databases != '')
+{
+  --let $_ds_info= $_ds_info databases=$databases
+}
+--let $include_filename= diff_servers.inc [$_ds_info]
+--source include/begin_include_file.inc
+
+# get databases
+--let $_ds_databases= $diff_database
+if ($_ds_databases == '')
+{
+  --let $_ds_databases= `SELECT GROUP_CONCAT(SCHEMA_NAME SEPARATOR ' ') FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME NOT IN ('information_schema', 'mtr', 'mysql', 'performance_schema')`
+}
+
+# generate command line
+--let $_ds_arg= --defaults-group-suffix=.
+--let $_ds_number_pos= `SELECT LOCATE('$_ds_arg', '$MYSQL_DUMP') + LENGTH('$_ds_arg')`
+--let $_ds_pre_command= `SELECT SUBSTR('$MYSQL_DUMP', 1, $_ds_number_pos - 1)`
+--let $_ds_post_command= `SELECT SUBSTR('$MYSQL_DUMP', $_ds_number_pos + 1)`
+--let $_ds_post_command= $_ds_post_command --compact --order-by-primary --skip-extended-insert --no-create-info --databases $_ds_databases
+--let $_ds_prev_outfile=
+
+# iterate over servers
+--let $_ds_servers= $diff_servers
+while ($_ds_servers != '')
+{
+  --let $_ds_server_number= `SELECT SUBSTRING_INDEX('$_ds_servers', ' ', 1)`
+  --let $_ds_servers= `SELECT TRIM(SUBSTRING('$_ds_servers', 1 + LENGTH('_$ds_server_number')))`
+  --let $_ds_outfile= $MYSQLTEST_VARDIR/tmp/diff_servers_$_ds_server_number
+
+  if ($rpl_debug)
+  {
+    --echo generating dump from server '$_ds_server_number' using command '$_ds_pre_command$_ds_server_number $_ds_post_command > $_ds_outfile'
+    --echo remaining servers: '$_ds_servers'
+  }
+  --exec $_ds_pre_command$_ds_server_number $_ds_post_command > $_ds_outfile
+
+  if ($_ds_prev_outfile != '')
+  {
+    if ($rpl_debug)
+    {
+      --echo diffing files '$_ds_prev_outfile' and '$_ds_outfile'
+    }
+    --diff_files $_ds_prev_outfile $_ds_outfile
+
+    --remove_file $_ds_prev_outfile
+  }
+  --let $_ds_prev_outfile= $_ds_outfile
+}
+
+--remove_file $_ds_prev_outfile
+
+--let $include_filename= diff_servers.inc [servers=$_ds_info]
+--source include/end_include_file.inc
diff --git a/mysql-test/suite/galera/disabled.def b/mysql-test/suite/galera/disabled.def
index d5016eab156..95455cbda44 100644
--- a/mysql-test/suite/galera/disabled.def
+++ b/mysql-test/suite/galera/disabled.def
@@ -41,4 +41,6 @@ MW-44               : MDEV-11229
 galera_gcs_fc_limit : MDEV-11229
 galera_roles        : MDEV-11229
 galera_lock_table   : MDEV-11229
-
+GAL-480 : Investigate
+galera_fk_no_pk :Investigate
+galera_account_management : Investigate
diff --git a/mysql-test/suite/galera/t/galera_roles.test b/mysql-test/suite/galera/t/galera_roles.test
index 16e417d1fdb..eea35762539 100644
--- a/mysql-test/suite/galera/t/galera_roles.test
+++ b/mysql-test/suite/galera/t/galera_roles.test
@@ -36,6 +36,7 @@ GRANT SELECT (a) ON test1.t2 TO role1;
 --connect(foo_node_1,127.0.0.1,foo,,test,$port_1,)
 
 --let $port_2= \$NODE_MYPORT_2
+--sleep 1
 --connect(foo_node_2,127.0.0.1,foo,,test,$port_2,)
 
 --echo
@@ -101,6 +102,7 @@ REVOKE EXECUTE ON PROCEDURE test1.pr1 FROM role1;
 --echo # Connect with foo_node_1
 --connection foo_node_1
 
+--sleep 1
 --error ER_PROCACCESS_DENIED_ERROR
 CALL test1.pr1();