diff --git a/mysql-test/include/galera_connect.inc b/mysql-test/include/galera_connect.inc
index bfd9b188667..9d458c5e063 100644
--- a/mysql-test/include/galera_connect.inc
+++ b/mysql-test/include/galera_connect.inc
@@ -40,6 +40,9 @@ if ($galera_debug)
   --echo connect($galera_connection_name,127.0.0.1,root,,test,$_galera_port,)
 }
 
+# Temporal solution to avoid concurrent IST MDEV-7178
+--sleep 1
+
 # Open a connection
 --connect($galera_connection_name,127.0.0.1,root,,test,$_galera_port,)
 
diff --git a/mysql-test/suite/wsrep/suite.pm b/mysql-test/suite/wsrep/suite.pm
index 3e8962d09d6..eb2c1a5b83c 100644
--- a/mysql-test/suite/wsrep/suite.pm
+++ b/mysql-test/suite/wsrep/suite.pm
@@ -32,6 +32,7 @@ push @::global_suppressions,
      qr(WSREP: Gap in state sequence. Need state transfer.),
      qr(WSREP: Failed to prepare for incremental state transfer: .*),
      qr(WSREP: Releasing seqno [0-9]* before [0-9]* was assigned.),
+     qr(WSREP: SYNC message from member 1 in non-primary configuration. Ignored.),
    );